All Research Projects


SPR-4546: Implementation Study: Continuous, Wireless Data Collection and Monitoring of the Sagamore Parkway Bridget Construction

Principal Investigators Monica PrezziRodrigo Salgado
Start Date - 01/04/2021

This project will continue data collection and long-term monitoring of the Sagamore Parkway bridge to assess the effects of the fluctuation of the Wabash river water level, severe weather events, scour and traffic conditions on the loads measured at the pile cap and piles supporting pier 7 of the bridge. The continuous, wireless load measurements will be a valuable reference for INDOT bridge designers and consultants and enable INDOT to evaluate the serviceability and safety of the bridge in the long term.

SPR-4545: Alternate Interchange Signing Study for Indiana Highways

Principal Investigators - Stanley Chien (IUPUI), Yaobin Chen (IUPUI), Renran Tian (IUPUI),  Lingxi Li (IUPUI)
Start Date - 07/01/2020

Current highway interchange signs are designed based on established standards, but some drivers have expressed that signing is confusing, not intuitive or perhaps not explanatory enough. This project is to develop possible recommendations for the better design of interchange signing in Indiana to improve the safety and efficiency of highway traffic operations. Naturalistic driving data collection and driver survey will be the means to collect information.

SPR-4542: Alternative Strategies for Roadway Work Zone Safety and Productivity Principal

Principal Investigators Jon FrickerDulcy Abraham
Start Date - 08/16/2020

The study will document the safety and productivity differences (a) between daytime and nighttime work zone operations and (b) between “rolling slowdown” and alternative methods for temporary closures of traffic through work zones. Intended deliverables include guidelines on which strategies to use, and under what circumstances.

SPR-4541: Roadside Barrier End Treatments: Safety Evaluation of INDOT Inventory and Practices

Principal Investigators Andrew TarkoMario Romero
Start Date - 07/01/2020

This project will establish a basis for state-specific end treatment selection guidelines applicable to various traffic and road conditions: speed, motor vehicle volume, presence of heavy trucks and motorcycles, available space, barrier end location. The guidelines will promote most effective solutions while reducing the number of treatment types to improve their maintenance. The cost effectiveness will consider the reduction in crash severity and frequency and the cost of end treatment alternatives within the life cycle analysis for new installation or for replacement of existing ones.

SPR-4540: Incorporating Time Dependent Date to Pro-Active Safety Managment - A Pilot Study

Principal Investigators Andrew TarkoMario Romero
Start Date - 07/01/2020

The current reactive safety-related decision making is based on crash data collected for at least three years. The existing road data supplemented with emerging data that reflect temporal changes in safety factors such as volume, speed, weather, and pavement conditions are expected to be useful in estimating hourly risks of crashes and their severity. The project will demonstrate the development and proactive use of new safety management system components for freeway rural segments and urban intersections. The results will include the guidelines of acquiring, storing, and handling massive amount of data needed for this purpose.

SPR-4537: Speed Management on Freeways in Transition Zone between Rural and Urban Conditions

Principal Investigators Andrew Tarko
Start Date - 07/01/2020

This project will recommend speed reduction treatments to apply in interstate transition zones from rural to urban conditions. The conditions which may affect the speed reducing effectiveness of alternative solutions will be identified to promote the most promising combination of treatments. The results will also help coordinate police enforcement activities within the INDOT-ISP collaboration program. Wording will be prepared to include in the Indiana MUTCD and the Indiana design manual, as needed. 

SPR-4536: Implementation of Enhanced Probe Data (CANBUS) for Tactial Workzone and Winter Operations Management

Principal Investigators Darcy Bullock
Start Date - 07/01/2020

Integrating hard braking events into weekly work zone reports will provide INDOT with assessment of their queue warning systems as well as improved hazard detection. Traction control and anti-lock braking events will be integrated into the winter operations traffic ticker and after action reports during winter months. It is anticipated that first connected vehicle truck data will begin to emerge in 2021 and the first collaboration in identifying wind speeds that warrant warnings on message signs will be conducted.

SPR-4527: Shear and Bearing Capacity of Corroded Steel Beam Bridges and Effects on Load Rating

Principal Investigators Amit VarmaRobert Connor, Jungil Seo
Start Date - 08/17/2020

The objective of this study is to establish the relationship between the residual shear and bearing capacities of corroded steel beams and load rating of steel beam bridges.  The final proposed deliverable is a material strength modification factor that can be used for load rating of corroded steel beam bridges in the INDOT database. This modification factor will be implemented in INDOT’s use of the load rating software, and a simple manual will be provided for using it efficiently. Additionally, AASHTO-Ready draft specifications will be proposed based on the research results.

SPR-4526: Predictive Analytics for Auantifying the Long-Term Cost of Defects during Bridge Construction

Principal Investigators Shirley DykeJulio Ramirez
Start Date - 12/01/2020

Inspecting bridges during construction and in service, and ensuring quality construction prior to acceptance and proper maintenance, are critical to the lifecycle performance of the structure. The goal of this project is to develop predictive analytics that would allow a more effective asset management. This approach will be demonstrated using concrete bridge decks as an illustrative example. The project will provide the knowledge and tools needed to estimate the costs associated with the consequences of defects occurring during construction (i.e., substandard quality), and weigh those against cost and expected performance of additional measures that can be taken to reduce such defects (e.g., improved inspection procedures).

SPR-4524: Evaluation of the Impact of On Vehicle Digital Communication Alerts to Improve INDOT and Motorist Safety

Principal Investigators Darcy Bullock
Start Date - 07/01/2020

Deployment of the on-board digital communication is maturing rapidly for emergency vehicles. This project will conduct trial deployments on INDOT fleet vehicles to 1) quantify the impact of the alerting technology on traffic, 2) develop procedures for coordination of technology in moving work zones, 3) identify opportunities to partner with automotive companies and navigation software to broaden dissemination and impact of alerts.

SPR-4523: Applied Ergonomicc

Principal Investigators -  Yunfeng ChenJianson Zhang
Start Date - 08/24/2020

A report to summarize the identified workers, activities, and injury types of top concern, as well as an evaluation of the current INDOT injury prevention efforts, will be prepared. New injury prevention technologies, practices, and process will be proposed and tested to address the concerns of the identified workers, activities, and injury types in INDOT.

SPR-4522: Design of Educational Materials & Public Awareness Campaigns for Improving Work Zone Driver Safety

Principal Investigators Nadia Gkritza, Stacey Connaughton
Start Date - 11/02/2020

The overall goal of this project is to improve work zone driver safety in Indiana through driver education and public awareness campaigns. This project will build on the findings of the public opinion survey under SPR 4441 and inputs from INDOT Statewide Safety and INDOT’s back of queue Task Force. The project goal is broken down into two specific objectives: 1) prepare educational materials to be incorporated into driver’s education or training curriculum prior to taking driving test and getting a driver’s license issued, and 2) design a public awareness campaign.

SPR-4521: Comprehensive Pavement Patching Tools and Web-based Software for Pavement Condition Assessment and Visualization

Principal Investigators James Krogmeier, Seonghwan Cho (INDOT), John Haddock
Start Date - 08/01/2020

The project will develop guidelines for concrete patching slab removal and creation of patching interface in full depth HMA patching. In addition, the project will implement in MATLAB and Python an algorithm that incorporates data from FWD, GPR, and 3D to produce patching tables with the required patching depth as an output. Finally, the project will deliver web server software needed for visualization of the patching table including the data sources (FWD, 3D image, and GPR) used in its creation.

SPR-4520: Development of an MSE Wall Construction Manual and Training Course

Principal Investigators - Peter Becker (INDOT)
Start Date - 09/01/2020

This study will generate MSE wall specific construction resources for INDOT project inspectors, based on a synthesis of practices from other state departments of transportation, MSE wall vendor construction manuals, and published literature. Project deliverables will include: (1) an MSE wall construction reference manual, (2) an updated checklist for MSE wall construction, and (3) an MSE wall construction training course. 

SPR-4518: Review of Indiana Asphalt Binders (In-Situ PG Grade Asphalt Determination)

Principal Investigators - Jusang Lee (INDOT), John Haddock
Start Date - 08/15/2020

The study objectives are:   (1) evaluate performance graded binder selections using LTPPBind, version 3.1; (2) to explore additional low-temperature binder grades;  (3) to determine if as-constructed asphalt binder grades meet project specifications; and (4) to develop a draft asphalt binder specification that can cost-effectively improve Indiana’s asphalt pavement cracking performance.

SPR-4516: Development of Protocols for Reuse Assessment of Existing Foundations in Bridge Rehabilitation and Replacement Projects

Principal Investigators Monica PrezziRodrigo Salgado
Start Date - 08/01/2020

In bridge replacement projects, it is often advantageous to reuse existing foundations.  INDOT does not have foundation reuse guidelines.  Finite element analyses will be performed to assess the contribution of the pile cap to the overall capacity of pile groups for typical configurations used by INDOT.  Holistic foundation reuse protocols will be developed to systematically assess the conditions of existing foundations in developing solutions for bridge rehabilitation and replacement projects. In addition, the design protocols to be developed will be implemented in three bridge rehabilitation/widening projects selected by INDOT.

SPR-4514: Material Characterization and Determination of MEPDG Input Parameters for Indiana Superpave 5 Asphalt Mixtures

Principal Investigators -  Seonghwan Cho (INDOT), John Haddock, Peyhaneh Rahbar-Rastegar
Start Date - 07/01/2020

The objective of the study is to determine the necessary PavementME input parameters for Superpave 5-designed asphalt mixtures. The anticipated performance of Superpave 5 asphalt mixtures compared to conventional Superpave mixtures will be evaluated using the software to characterize the possible long-term performance enhancements of using Superpave 5 asphalt mixtures. The findings will provide guidance for modifying the PavementME aging prediction model for Superpave 5- designed mixtures.

SPR-4513: Determining Optimal Traffic Opening Time through Concrete Strength Monitoring - Wireless Sensing

Principal Investigators Na (Luna) Lu
Start Date - 09/1/2020

The research team has successfully developed and implemented a nondestructive testing (NDT) method using piezoelectric sensors to measure real-time concrete strength and stiffness. However, the current hardware and software are bulky and inconvenient for field implements.  This project will develop a wireless sensor with hand-held devices or portable terminals, and associated graphic interface to make devices easy for field implementation. 

SPR-4512: Pile Stability Analysis in Soft Soils - Guidance on Foundation Design Assumptions with Respect to Loose-Soft Soil Effects on Pile Lateral Capacity and Stability

Principal Investigators Monica PrezziRodrigo Salgado
Start Date - 08/01/2020

To address problems resulting from insufficient lateral capacity of piles in bridge piers supported by pile groups with single-row or multiple-row configurations, advanced three-dimensional finite-element (FE) analyses will be performed to study the lateral capacity and stability of single piles and pile groups installed in soil profiles containing a weak, compliant soil layer in the soil profile. In the FE analyses, sand and clay layers will be modeled by using advanced constitutive models. Preliminary conservative guidelines for a few specific critical cases will be provided for implementation in the first year of the project. A range of design scenarios (defined by soil profiles, loading cases and pile group layouts) will be analyzed, and the results will be consolidated into design procedures and equations that can be added to the Indiana Design Manual.

SPR-4509: Strategic Assessment of Needs and Opportunities for Wider Adoption of Renewable Energy and Electrificatin in Indiana

Principal Investigators Nadia GkritzaSamuel Labi
Start Date - 08/17/2020

This The project will investigate the challenges and opportunities associated with the provision of appropriate infrastructure to support EV operations and develop a strategic plan for INDOT that involves new business opportunities by developing EV charging stations and related infrastructure systems and technologies that are synergistic with EV operations, including connected and autonomous vehicles, and shared transportation.

SPR-4504: Development of INDOT Slab Jacking Program

Principal Investigators - Tommy Nantung (INDOT)
Start Date - 11/01/2020

This project will give guidance on how to conduct slab jacking using a totally different material that can be opened to traffic immediately after the polymer expanded foam is set. The slab jacking program will be done by the in-house maintenance crew so that preventive maintenance reaction time will be very short and the pavement structural capability can be restored immediately.

SPR-4502: Heavy Fleet and Facilities Optimization

Principal Investigators - Ananth IyerSteven DunlopSamuel Labi
Start Date - 11/01/2020

A mission aligned fleet is critical to INDOT’s mission. This includes aspects of equipment purchased and facility placement. What is the correct equipment and facility to perform the mission? What are appropriate business models, information, and transparencies. This project will identify needs with logistical requirements being considered, provide data, and make recommendations.

SPR-4452: Demonstration Project for Asphalt Performance Engineered Mixture Design Testing

Principal Investigators John Haddock
Start Date - 06/01/2020

The complicated nature of asphalt mixtures makes it very difficult to predict the performance of asphalt pavements over its service life. The main objective of this study is to evaluate fatigue cracking on three mainline pavement projects in Indiana, and better understand the fundamental engineering testing capabilities of Asphalt Mixture Performance Tester (AMPT).

SPR-4451: Integration of Probe Data Tools into TMC Operations

Principal Investigators Darcy Bullock
Start Date - 02/01/2020

Probe data tools developed at Purdue are used variety of Purdue/INDOT/ISP users for analyzing work zones, severe crashes, winter operations, moving maintenance operations, and overall system mobility. This project will consolidate the tools into a common suite of tools that uses consistent user and database interfaces as well as develop training material for a variety of users.

SPR-4450: Visualization of Falling Weight Deflectometer (FWD) Data and Road Imagery for Enhanced Pavement Assessment

Principal Investigators Mohammad Jahanshahi
Start Date - 01/13/2020

INDOT conducts FWD testing to assess the structural capacity of road pavements. A human inspector goes through the collected data, which is linked with GPS information, and decides about an appropriate followup action. However, a nonpictorial evaluation as such is not ideal for locating a critical area with reference to its immediate vicinity and areal conversance of the INDOT personnel. To address this shortcoming in the standard operating procedure, we propose to develop an application and a visualization tool for FWD data by integrating it with Google Maps and image data recorded by cameras.

SPR-4448: Central HMA Acceptance Lab Process Improvement Implementation Plan

Principal Investigators - James Handy
Start Date - 10/21/2019

The Implementation Plan for SPR-4353 will include the following items: Establish a structured scheduling method. Establish a Work Order routing system, use the Resource vs. Demand model to plan overtime, adjust schedules of staff to do test reporting at end-of-shift and, establish and communicate a performance metric for schedule compliance.

This project was completed as of May 22, 2020. A final report is pending.

SPR-4447: MEPDG Implementation (Validation/Model Calibration/Acceptable Distress Target/IRI Failure Trigger/Thermal Selection/Binder Selection)

Principal Investigators Jan Olek, Jusang Lee (INDOT)
Start Date - 11/01/2019

The objective is to review and adjust pavement design procedures and to improve accuracy of design. The target users are pavement design engineers. The results from this research will be extremely beneficial to INDOT’s pavement design engineers and consultants.

SPR-4446: An Assessment of the Workforce and Occupations in the Highway, Street and Bridge Construction Industries

Principal Investigators - Indraneel Kumar, Lionel Beaulieu
Start Date - 01/01/2020

This study reviews Indiana’s transportation and logistics cluster with the following deliverables: (1) Release of a Data Snapshot that examines the workforce associated with the NAICS 237310 industry sector; (2) Development of an interactive data dashboard related to the Highway, Street, and Bridge Construction Industry Cluster in Indiana; and (3) A policy brief that examines workforce strategies for the highway, street and bridge construction industry cluster.

This project was completed as of September 1, 2020. A final report is pending.

SPR-4445: Long Term Project and Network Level NDT Implementation Plan for Indiana

Principal Investigators Mark BowmanChristopher Williams, Prince Baah (INDOT)
Start Date - 01/01/2020

The proposed work will include: (a) an examination of the nondestructive bridge deck test results gathered recently by a private consultant, (b) development of a nondestructive test program, (c) an evaluation of suitable vendors for conducting the nondestructive bridge deck testing, (d) coordination of the bridge deck testing program, (e) evaluation of data from the bridge deck testing, (f) presentation of a workshop on NDT methods and corresponding applications for bridge decks, and (f) a summary report to document the study findings and development of a project and network level NDT implementation plan for bridge decks.

SPR-4444: Improved Live Load Lateral Distribution Factors for use in Load Rating of Older Continuous and T-Beam Reinforced Concrete Bridges

Principal Investigators Julio Ramirez
Start Date - 08/01/2019

The findings inform proposed modifications to formulas for distribution of traffic loads to exterior and interior beams and strips in reinforced concrete T-beam and solid slab bridges. By improving load rating estimates, overload permits, and reducing the need for posting of the bridges in the study scope, it will be responsive to the Indiana Department of Transportation 2019 Strategic Plan Strategic Priority of Asset Sustainability.

SPR-4443: Remaining Service Life Prediction of Indiana Pavements Using Mechanistic Methods

Principal Investigators -  Seonghwan Cho (INDOT), John Haddock
Start Date - 02/01/2020

The study objective is to predict pavement remaining service life in terms of major pavement distresses using FWD and IRI data. These data, combined with laboratory test results, will be used to develop deterioration curves for flexible, rigid, and composite pavements across Indiana climatic zones. Such curves can be used to provide recommendations on required rehabilitation or reconstruction.

SPR-4442: Highway Lighting Test Bed on INDOT Facility (Off-Roadway)

Principal Investigators Yi Jiang, Shuo Li (INDOT)
Start Date - 09/01/2019

To eliminate traffic control and potential safety concerns with conducting field Luminaire testing, it is essential to establish necessary test beds so that new models can be evaluated in a controlled and standard setting. By the end of this study, two test beds will be designed, constructed, and implemented. The test beds will improve INDOTs testing procedure and support the on-going development of INDOTs Approved Materials List for Solid State Ballasted Luminaires.

SPR-4441: Public Acceptance of INDOT's Transportation Services

Principal Investigators Nadia GkritzaJon Fricker
Start Date - 10/01/2019

A statewide public opinion survey is proposed to complement the current INDOT customer satisfaction survey and measure public acceptance and awareness of current traffic engineering infrastructure treatments, use of common traffic control devices, and practices in traffic operations and transportation systems management. The statewide public opinion survey results can assist INDOT to identify areas that there is a misunderstanding or lack of awareness of its current infrastructure treatments and practices.

SPR-4440: An Integrated Critical Information Delivery Platform for Smart Segment Dissemination to Road Users

Principal Investigators - Lingxi Li (IUPUI), Yaobin Chen (IUPUI), Renran Tian (IUPUI), Howell Li
Start Date - 07/01/2019

This proposed INDOT/JTRP FY-2020 research is a collaborative work between TASI from IUPUI and Purdue University, which has the following major deliverables:

  1. An integrated database including the baseline mile post database scheme and other data sources.
  2. Algorithms that can generate targeted and prioritized alert messages for augmenting the INDOT ITS system.
  3. Intelligent and novel traffic information delivery interfaces.

SPR-4439: Guidelines for Evaluating Safety Using Traffic Conflicts: Proactive Crash Estimation on Roadways with Conventional and Autonomous Vehicle Scenarios

Principal Investigators Andre TarkoMario Romero
Start Date - 08/15/2019

The primary objective is to make safety management more proactive by allowing the current benefit-cost analysis to be applied to crashes predicted to occur based on the observed traffic conflicts. The new approach will be useful in safety audits and for responding to future changes in road safety brought by emergence of new technologies.

SPR-4438: Field Test Bed for Evaluating Embedded Vehicle Sensors with Indiana Companies

Principal Investigators Darcy BullockAyman Habib
Start Date - 10/01/2019

Project objectives are to improve the precision/accuracy of the GNSS/INS-based geo-referencing for mobile mapping systems, evaluate the current inCORS network to ensure sufficient coverage of critical interstate corridors and test routes, identify the extent that heavy commercial vehicle traffic and urban canyons degrade GPS signals and develop corresponding mitigation measures, and automate the mapping of intersection lanes to support Indiana automotive suppliers in developing connected vehicle applications.

SPR-4437: Effective Design and Operation of Pedestrian Crossings

Principal Investigators -  Andre TarkoMario Romero
Start Date - 08/15/2019

The proposed study will identify the conditions when the risk of injury and fatality of pedestrians on road crossing is excessive. The proposed project will produce recommendations regarding improving pedestrians’ safety by:

  1. Proposing language for the Indiana Design Manual to help improve pedestrian safety.
  2. Writing practical guidelines for improving safety at existing crosswalks directed towards designers and traffic engineer.
  3. Developing manuals for conducting safety studies at pedestrian crosswalks that deliver input to improving safety at existing crosswalks.

SPR-4436: Road Condition Detection and Classification from Existing CCTV Feed

Principal Investigators -  Stanley Chen (IUPUI), Yaobin Chen (IUPUI), Zhengming Ding (IUPUI)
Start Date - 07/01/2019

TASI is working with INDOT on an automatic incident detection based on the video stream from CCTV cameras along interstate highways to develop software that can automatically identify the roads and lanes on the video, the vehicle moving direction, and traffic flow rate.

SPR-4433: Unit Hydrograph Method Refinement at Higher Resolution

Principal Investigators -  Venkatesh Merwade
Start Date - 01/01/2020

This project will address the limitations of the current Unit Hydrograph (UH) application by developing a custom Indiana UH that is as easy to use and apply as the current NRCS method. This project will deliver: (i) a report detailing the scope of the study, methodology and results related to development of UH, including the database; and (ii) a recommended procedure on how the newly developed UH can be easily implemented in INDOT projects.

SPR-4432: Culvert Inspection Frequency Determination - Guidelines for INDOT

Principal Investigators -  Christopher Williams
Start Date - 08/015/2020

This project will provide guidance to optimize culvert inspection schedules and procedures in Indiana, Project will lead to a better understanding of the culvert inventory in the state system and will result in recommended inspection practices that provide cost-savings while ensuring the integrity of culvert infrastructure. The deliverables include a culvert inspection manual, conference presentation(s), and a final report.

SPR-4431: A New Approach to Accelerated Fabrication of Steel Bridges: Design, Optimization, and Demonstration

Principal Investigators -  Ashley Thrall (University of Notre Dame)
Start Date - 01/01/2020

This project will develop and demonstrate a new approach to the accelerated fabrication of resilient steel bridges. Research objectives include: (1) Design and build a simply-supported and a multi-span continuous demonstration bridge; (2) Measure the dead and live load strains of the demonstration bridges as experimental evidence demonstrating behavior; and (3) Develop and optimize a kit-of-parts system to facilitate adoption.

SPR-4430: Multiple Water Course Joint Probability Analysis Procedure Development for Indian Specific Watersheds

Principal Investigators -  Venkatesh Merwade
Start Date - 01/01/2020

Design of hydraulic structures near a stream confluence requires the use of joint probability of flow exceedances. This project will develop joint probabilities based on Indiana streams for multiple probabilities including 1%, 2%, 4% and 10%. This project will deliver a report detailing the scope of the study, methodology and results related to development of joint probabilities and a recommended procedure on how the newly developed joint probabilities can be implemented in INDOT projects.

SPR-4429: Use of LRFR Methodology for Load Rating of INDOT Steel Bridges

Principal Investigators -  Mark Bowman
Start Date - 09/01/2019

The purpose of the proposed research is to examine the limitations and results for five different strength limit states for older Indiana highway bridges that were designed by ASD or LFD, but are load rated using LRFR using the AASHTOW are Bridge Rating software package. Based upon the results, recommendations will be formulated to provide guidance on modifications suggested for use of the LRFR software or corrective actions that must be taken.

SPR-4424: Evaluation of Current Technologies for: Training, Web Apps, and New Technologies

Principal Investigators - Ananth IyerSteven Dunlop
Start Date - 11/01/2019

The proposal focuses on safety training to staff and awareness to stakeholders. A work zone case study will be developed as a tool to for the evaluation of training methods, such as video training with quizzes, augmented reality and virtual reality apps, web apps, phone apps, software simulations, hands-on training and handbooks. Many of these training approaches include the opportunity for peer-to-peer learning, gamification etc. to ensure continued comprehension and retention of concepts.

SPR-4423: Pavement Markings for Asphalt and Concrete Pavements

Principal Investigators - Kendra Erk, Chelsea Davis
Start Date - 08/01/2019

Research will characterize the adhesion and durability of pavement marking materials to asphalt and concrete pavement surfaces including temporary tapes and paints as well as permanent markings. Variables will include marking material composition, application temperature and relative humidity, and pavement age, roughness, and chemistry, including sealed and unsealed pavements.

SPR-4422: Automate the Generation of Construction Checklists

Principal Investigators - Hubo Cai
Start Date - 07/01/2019

This project addresses the critical need for an effective inspection toolset to reduce staff workload and enhance the performance. The main deliverable is an intelligent database of inspection requirements that provide field crews with customized construction checklists for the work under inspection with necessary specifics regarding what to check, when to check, how to check, and risks of and actions to take when encountering noncompliance.

This project was completed as of October 8, 2020. A final report is pending.

SPR-4421: Life Cycle Integration of Infrastructure Modeling

Principal Investigators - Yunfeng Chen, Jianson Zhang
Start Date - 07/01/2019

Deliverables of this project include:

  • Data requirements for design and construction, based on a checklist of asset items provided by INDOT and data need from O&M
  • Documentation of current workflow and identification of gaps through a pilot study of an existing ongoing project;
  • A revised workflow of data collection during design, construction, and inspection phases to fill the identified gaps;
  • A final report documenting all findings and recommendations.

SPR-4420: Estimating Strength from Stiffness for Chemically Treated Soils

Principal Investigators - Boonam Shin (INDOT), Peter Becker (INDOT), Antonio Bobet
Start Date - 01/01/2020

INDOT requires that mix designs for chemically stabilized subgrades be based off of compressive strength. This research study will aim to improve the process of mix design and construction for chemically subgrade stabilization by determining correlation between strength and stiffness. Also, guidelines for the applicability of chemically stabilized subgrade based on project specific conditions will be provided.

SPR-4419: Superabsorbent Polymers (SAP) for Internally Cured Concrete

Principal Investigators - Kendra ErkJan Olek
Start Date - 09/15/2019

The goal of this research is to develop practical, cost-effective strategies to create internally cured concrete for INDOT bridge decks and full depth patching of pavements that do not require complicated processing steps to achieve the desired benefits, including improved hydration, reduced thermal expansion, and increased freeze-thaw resistance compared with conventional mixes.

SPR-4418: Development of In-situ Sensing Method for Monitoring of Watercement (W/C) Values and the Effectiveness of Curing of Concrete

Principal Investigators Na (Luna) LuJan Olek
Start Date - 01/15/2020

Water-to-cement (w/c) ratio affects many concrete properties, including strength, porosity, durability, and constructability. However, w/c ratio of any given mixture can be altered during the manufacturing, transportation, and placement of concrete. This proposal aims to develop a sensing method that will enable accurate, in-situ determination of w/c ratio of freshly placed concrete and monitoring of concrete curing conditions. The successful completion of this program will result in significant cost savings to INDOT and taxpayers.

SPR-4417: Use of Recycled Asphalt

Principal Investigators Antonio Bobet
Start Date - 08/01/2019

The goal of the project is to gain understanding on the potential use of recycled asphalt in fills and/or confined areas. The project will improve INDOT’s ability to improve construction methods, increase the quality and reliability of construction and, most importantly reuse of pavements. Results of the study will be used to update and enhance the INDOT geotechnical design manual as well as provide recommendations for implementation as a pilot project.

SPR-4415: Determining Asphalt Mixture Properties Using Imaging Techniques

Principal Investigators - John Haddock
Start Date - 01/01/2020

This study addresses measuring compacted asphalt mixture volume and thereby specific gravity and air voids in a relative short time and more accurately than currently used methods. If feasible, such techniques will save time and resources in determining asphalt mixture volumetric properties, as well as increasing the accuracy of such measurements and delivering those measurements in real-time. 

SPR-4414: Use of Geosynthetics on Subgrade and on Low and Variable Fill Foundations

Principal Investigators Antonio Bobet, Tommy Nantung (INDOT)
Start Date - 08/01/2019

The aim of the project is to create the knowledge necessary to use geosynthetics properly to benefit INDOT and to encourage INDOT to use them in construction. The project builds on the current design procedures and specifications that INDOT has and complements them for the applications of interest to the project, namely: subgrade improvement, subgrade foundation, embankment foundation, and construction of fill on poor or wet soils.

SPR-4413: Assessing the Travel Demand and Mobility Impacts of Disruptive Transportation Technologies in Indiana

Principal Investigators - Hua Cai, Nadia Gkritza
Start Date - 08/01/2019

The objective of this project is to develop a framework, KPIs, and models to quantify the potential travel demand and mobility impacts of disruptive transportation technologies in Indiana. An agent-based model will be developed to simulate the adoption, use, and travel behavior change at the household level for each case study city. The results of this study can help INDOT and MPOs in the study areas to anticipate the demand for these emerging transportation options and plan accordingly.

SPR-4411: Last Mile Delivery and Route Planning for Freight

Principal Investigators - Ananth IyerSteven DunlopNadia Gkritza
Start Date - 11/01/2019

Planning for growth through capacity addition requires anticipation of future needs, driven by the rapid growth in Indiana of manufacturing facilities, impacts of autonomous long and short haul delivery hubs, locations for accumulation of trucks for platooning and other freight related growth initiatives. We will develop a scenario based planning tool that will explore last mile demand scenarios in anticipation of future demand. Data from existing INDOT and local sources will be integrated into the tool. 

SPR-4409: Safety, Mobility, and Cost Benefits of Closing One Direction of Interstate in Rural Areas During Construction Work

Principal Investigators - Makarand HastakSamuel LabiSoojin Yoon, Kyu Kang (IUPUI)
Start Date - 11/01/2019

Contractors have been pushing for more safety either by closing sections or placing barrier walls along the length of the project. Project deliverables will be guidelines that help to determine (1) where it is beneficial to close interstates, (2) what needs to be added prior to projects such as extra lanes, widening structures, increasing truck radii, signal timing, etc., and (3) what it is an acceptable user cost and necessary liquidated damages for the contractor to complete on time.

SPR-4407: Road Ditch Line Mapping with Mobile LiDAR

Principal Investigators - Ayman HabibDarcy Bullock
Start Date - 08/01/2019

Mobile Mapping Systems are capable of providing cross-sectional profiles of road surface and ditch lines with an absolute accuracy of 1-2 inches in both the horizontal plane and vertical elevation. These profiles can be used to effectively identify the locations where there are elevation/grade issues. This project aims at using a LiDAR-based mobile mapping system traveling with a speed of roughly 20 to 40mph for the mapping and analysis of road ditch lines.

SPR-4406: Frontline Employee Training Using Virtual Reality Simulation of Field Conditions

Principal Investigators - Mohammad JahanshahiShirley Dyke
Start Date - 08/01/2019

This project will develop virtual reality (VR)-based training modules with realistic scenarios for rehabilitation and maintenance decision-making. Technical staff can thoroughly practice and sharpen their skills without being concerned about typical hazards that real world training may incur.  Software with a VR headset that will provide a training platform for INDOT crews to be exposed to various pavement operation scenarios and learn about how to make an informed decisions regarding potential follow-up actions.

SPR-4405: Synthesis Study on Best Practices for Mapping and Coordinating Detours for Maintenance

Principal Investigators - Makarand HastakSamuel Labi, Soojin Yoon
Start Date - 11/01/2019

This study will document best practices that could be implemented within INDOT projects. Due to the typical unsystematic nature of development of detour mapping and coordination plans, the local communities, drivers, and associated stakeholders might encounter unforeseen indirect risks and losses. Implementation of the study results can help reduce these indirect risks and losses and provide benefits in terms of reduced MOT costs to the agency, travel delay costs to road users, and business disruptions for community businesses.

SPR-4404: Improve and Gain Efficiency in Winter Operations

Principal Investigators - Ananth IyerSteven Dunlop
Start Date - 11/01/2019

The goal of this project is to understand the current efficiency of deployment of trucks and routes to service winter operations and explore approaches to optimize performance. This includes understanding available capacity, both trucks, drivers and routes, as well as plans to adjust the type of capacity and drivers to improve performance.

SPR-4351: Minimizing Blast Furnace Slag (BFS) Leachate Through Improved Product Acceptane Criterion and Siting Considerations

Principal Investigators - Andrew Whelton, Chad Jafvert, Nadya Zyaykins
Start Date - 05/06/2019

This study will examine several product acceptance criteria and siting considerations that are necessary to minimize short- and longer term water quality problems. Specific research objectives are: (1) Review the impacts of the 2018 JTRP project proposed revised siting criteria for ACBFS use, (2) Evaluate the ability of the ITM 212 and a proposed column test to predict BFS leachate quality and leaching, and (3) Provide recommendations for improving BFS testing to better identify material quality.

SPR-4336: Improvement of Scaling Resistance of Pavement Concrete Using Titanium Dioxide (Tio2) and Other Nano-additives

Principal Investigators - Jan Olek
Start Date - 01/01/2019

Objective of this research is development of reliable and relatively inexpensive method of improving the scaling resistance of pavement concretes containing fly ash.  Additional benefits may include increased resistance to chemical attack by deicing chemicals and increase in mechanical properties of concrete pavements. If successful, the proposed method of increasing scaling resistance of fly ash concrete will allow for extension of the construction window for usage of fly ash while, at the same time, increasing durability of concrete.

SPR-4335: Environmentally Tuning Asphalt Pavements Using Phase Change Materials

Principal Investigators - John Haddock, Carlos Martinez, Jeffrey Youngblood
Start Date - 01/01/2019

It is anticipated that this study will result in the ability to more closely “tune” pavements to the environments into which they will be placed. This becomes most important for those pavements that result in the costliest delays and repairs if premature failure occurs. By better tuning pavements to their anticipated in-service environments, distresses such as thermal cracking and rutting could be greatly minimized, thus lowering pavement maintenance and rehabilitation costs.

SPR-4334: Improved Reliability of FWD Tests Results and Correlation with Resilient Modulus

Principal Investigators - Antonio Bobet
Start Date - 12/01/2018

The project addresses three issues identified in previous research regarding the interpretation of FWD data: (1) FWD experiment performance; (2) limited data available for meaningful correlations with the subgrade resilient modulus; and (3) shortcomings of results analysis using the code ELMOD. The project will improve INDOT FWD testing methods, increase the quality and reliability of its results and increase the confidence and reliability of the calculations using the MEPDG for pavement design.

SPR-4332: Performance Related Specification for Pavement Milling

Principal Investigators - Seonghwan Cho (INDOT), John Haddock
Start Date - 01/01/2019

The objective of this research is to evaluate pavement damage that could occur during milling process. The primary deliverable for this research will be a technical report documenting more reliable milling procedures and specifications, testing methodologies, testing results, and findings.

SPR-4329: Verification Testing of MSE Wall Foundation Bearing Capacity Based on the DCPT

Principal Investigators - Peter Becker (INDOT), Monica Prezzi, Rodrigo Salgado
Start Date - 08/15/2019

This project aims to develop: i) guidelines on how best to conduct and interpret subsurface investigations for proposed MSE walls, particularly for road widening projects; ii) methodology to estimate the bearing capacity of foundation soils found in Indiana in MSE wall construction and iii) guidelines on how to use quality assurance methods for verifying MSE wall foundation shear strength and bearing capacity to prevent serviceability limit states from being reached. Two MSE walls will be instrumented and monitored in the context of this project.

SPR-4327: Development of Compaction Control Guidelines for Aggregate Drainage Layers and Evaluation of In Situ Permeability Testing Methods for Aggregates

Principal Investigators - Peter Becker (INDOT), Marika SantagataPhilippe Bourdeau
Start Date - 01/01/2019

Objective of this research is to improve the process for aggregate drainage layer construction within INDOT contracts. Results of the study will allow INDOT to move towards standardizing a performance based quality assurance approach for aggregate drainage layer construction.

SPR-4326: Self-Healing Cementitious Composites (SHCC) with Ultrahigh Ductility for Pavement and Bridge Construction

Principal Investigators - Na (Luna) Lu
Start Date - 07/01/2018

The aim of this project is to develop a new class of self-healing cementitious composites (SHCC) with ultra-high ductility and durability that can autonomously heal cracks developed in the concrete, due to shrinkage, free-thaw damage, and service loading. The superior ductility and durability of SHCC can accommodate pavement and bridge structures deformation imposed by concrete shrinkage, temperature fluctuation, etc. As such, this class of SHCC materials provide a cost-effective solution to pavement and bridge rehabilitation as well as new construction projects.

SPR-4325: Development of Volumetric Acceptance and Percent Within Limits (PWL) Criteria for Stone Matrix Asphalt (SMA) Mixtures in Indiana

Principal Investigators - Jusang Lee (INDOT), John Haddock
Start Date - 03/01/2019

Section 410 has a discrepancy between SMA design criteria and its acceptance. SMA adjusted pay points in Section 410.19 are not based on robust statistics. There is a need for the INDOT performance-related SMA PWL pay factors in order to assure pavement quality that INDOT invests for.

SPR-4323: Extraction of Vehicle "CAN bus" Data for Enhanced Winter Roadway Condition Monitoring

Principal Investigators - Darcy Bullock
Start Date - 10/01/2018

One of the most significant challenges in winter roadway maintenance is identifying emerging/deteriorating conditions early, before significant crashes occur. Most modern vehicles now have anti-lock brake and traction control systems. That data can be read from the Controller Area Network (CAN) on the vehicle along with other attributes such as temperature, speed, GPS location, yaw angle, etc. and transmitted to the cloud. This provides a rich new data source that can be used to provide agile prioritization of resources early in a storm to geographic regions with deteriorating conditions.

This project was completed as of September 17, 2020. A final report is pending.

SPR-4322: Develoment of an Intelligent Snowplow Truck that Integrates Telematics Technology, Roadway Sensors, and Connected Vehicle

Principal Investigators - James KrogmeierDarcy Bullock
Start Date - 01/01/2019

There is a need to leverage the deployed fleet of trucks with spreader/plow data logging capability to monitor how winter operation assets are deployed, construct performance measures charts, and identify best practices for material application rates.

SPR-4321: Evaluation of Our Current and Other Anti-Icing/De-Icing Products Under Controlled Environmental Conditions to Test Effectiveness

Principal Investigators - Zhi (George) ZhouBob McCullouch
Start Date - 07/01/2018

INDOT removes ice and snow from more than 28,000 lane miles of highways to protect public safety. This project will synthesize information from the literature and other agencies to evaluate effectiveness and environmental impacts of available anti-icing and de-icing products. The expected project deliverables include a summary report and recommendations on the most cost-effective anti-icing and de-icing products to support INDOT’s efforts to improve highway safety.

This project was completed as of April 7, 2020. A final report is pending.

SPR-4320: Implementation of Epoxy Injection of Conrete Overlaid Bridge Decks

Principal Investigators - Prince Baah (INDOT)
Start Date - 09/01/2018

Concrete overlay has proven to be effective maintenance treatment as it prevents de-icing chemicals and water penetration into the original deck surface. Typically, over time, debonding develops at the boundary between the original deck and overlay which creates void. Displacing water and filling these cracks with epoxy helps eliminate freeze and thaw and reduces spalling requiring emergency patching, and thereby extending the bridge deck life span. This process is envisaged as an end of bridge deck life treatment. The ultimate goal is to forgo another costly deck rehabilitation project and save that money for a deck replacement, or superstructure replacement in the near future.

SPR-4319: Cost/Benefit Analyisis of Installing Fiber Optics on INDOT Projects

Principal Investigators - Ananth IyerSteven Dunlop,  Samuel Labi
Start Date - 03/01/2019

This research study will evaluate the costs and benefits of allowing conduit space allowance at controlled-access state highways in Indiana in order to make an informed decision that balances stakeholder interests. An associated goal is to explore mechanisms to realize a fair market return for fiber-optic cable permits on the state’s controlled-access highway ROW. The research study is intended to yield a result that will foster a clear and consistent policy in this matter.

This project was completed as of May 26, 2020. A final report is pending.

SPR-4318: Installation and Maintenance of Raised Pavement Markers at State Transportation Agencies: Synthesis of Current Practices

Principal Investigators - Dulcy Abraham, Tommy Nantung (INDOT)
Start Date - 05/15/2019

This synthesis study will contact a review of practices used by State Transportation agencies regarding preparation for and installation of snowplowable raised pavement markers, and will identify key strategies for maintaining and improving the functionality of such markers. The deliverable will be a report describing these practices, and guidelines, based on professional judgement, about appropriate practices for consideration by INDOT.

This project was completed as of June 10, 2020. A final report is pending.

SPR-4315: Develop and Deploy a Safe Truck Platoon Testing Protocol for the Purdue ARPA-E Project in Indiana

Principal Investigators - Gregory Shaver
Start Date - 11/01/2018

Deploy platooning of two Class 8 trucks on Indiana interstate and US highways in both a test and production mode. Explore unique challenges and present potential solutions to the connected transportation sector. Provide guidelines for INDOT deployment to advance Indiana as a leader in transportation.

SPR-4314: Feasibility Study and Design of On-Road Electric Vehicle Charging Technologies

Principal Investigators - Nadia Gkritza, Dionysios Aliprantis, Steven Pekarek
Start Date - 08/13/2018

Based upon a literature review, this feasibility study will identify the factors that determine the optimal locations of electric roadways in Indiana, such as road characteristics, vehicle miles traveled, access to power network, and proximity to specific facilities.  A localized analysis of the selected corridors will follow to provide information on subjects such as traffic modeling, road cost estimation, maintenance and general technical needs. In addition, a test bed will be designed, which will feature flexibility to accommodate a wide range of technologies (e.g., inductive and capacitive).

SPR-4311: Evaluating Reserve Strength of Girder Bridges due to Bridge Rail Load Shedding

Principal Investigators - Ashley Thrall (University of Notre Dame)
Start Date - 01/01/2019

The aim of the proposed research is to experimentally and numerically evaluate the reserve strength of girder bridges due to bridge rail load shedding. The proposed research will investigate this reserve strength through: (1) performing non-destructive field testing, (2) developing validated numerical models, and (3) performing parametric numerical investigations to extend results to other loadings and bridge geometries. The project will culminate in assessment guidelines for bridge inspectors and asset engineers to make informed decisions related to the load carrying capability of bridge rails which could be relied upon under emergency circumstances.

SPR-4310: Legal and Permit Loads Evaluation for Indiana Bridges

Principal Investigators - Mark Bowman, Arun Prakash
Start Date - 10/01/2018

The purpose of the proposed research is to examine three aspects of legal and permit loads used in Indiana. Firstly, the aim is to review current INDOT software used to screen and evaluate permit requests. Secondly, the evaluation of various new truck loads will be examined in depth, including vehicles considered in the FAST Act. Lastly, the current legal loads will be examined to consider their influence on posting requirements used in Indiana. If it is believed that changes in the Indiana legal loads are needed, then recommendations will be proposed.

This project was completed as of November 4, 2020. A final report is pending.

SPR-4309: Pack - Rust Mitigation Strategy Effectiveness

Principal Investigators - Mark Bowman
Start Date - 01/01/2019

The purpose of the proposed research is to examine pack rust effects on bridge structures in Indiana and to develop recommendations for particular strategies that can be used to prevent or mitigate pack rust in steel bridges. Various repair strategies will be examined to determine which appear to be the most effective in halting or delaying the development of further pack rust after it has been detected in a connection detail. The strength loss associated with pack rust development and damage will be examined. Lastly, recommendations and detailed guidelines on the most effective repair procedures will be formulated.

SPR-4308: Invesigation of Strategic Deployment Opportunities for Unmanned Aerial Systems (UAS)

Principal Investigators - Sarah Hubbard, Bryan Hubbard
Start Date - 09/01/2018

Unmanned aerial systems (UAS) are being used by DOTs across the country for a variety of tasks. The proposed project will identify candidate UAS applications for INDOT, prioritize the applications that look most promising, and investigate the highest priority applications.

This project was completed as of April 29, 2020. A final report is pending.

SPR-4302: Using of Emerging & Extraordinary Data Sources as Means to Improve Traffic Safety

Principal Investigators - Andre Tarko, Mario Romero
Start Date - 12/01/2018

The study will identify new and emerging data that could be used in conjunction with the conventional data to support safety management. The project will conduct a comprehensive evaluation of the identified data including their relevance to safety, permanency of the sources, and the data quality, availability, and cost. A report will justify the usefulness of the identified data for individual safety management tasks. Specific recommendation will be made to help in proper data acquisition, storing, and management in relation to the INDOT Data Portal being under development.

SPR-4301: Assessment of an Offset Pedestrian Crossing for Multilane Arterials

Principal Investigators - Sarah HubbardJon Fricker
Start Date - 05/01/2019

This study will investigate an innovative crossing solution that offsets pedestrian and bicycle crossings from the intersection, with the hope that it will potentially improve pedestrian safety (due to fewer potential conflicts with turning vehicles) and vehicle service. The proposed project will potentially benefit all major four-lane roadways that have to contend with pedestrian traffic interactions.

SPR-4300: Investigation of Durability and Performance of High Friction Surface Treatment

Principal Investigators - Shuo Li (INDOT), Jie Shan
Start Date - 07/01/2018

In 2018, a total of $1.5 million HFST projects will be placed on roadway curves with the intent to make HFST one of the available traffic safety systemic work types to combat the 39% percent of severe crashes caused by vehicles departing the roadway. Major issues such as durability, performance-driven specifications, and crash modification factor (CMF) will be addressed in this study.   An effective training program will be developed to train district and county engineers to utilize HFST, an emerging technology, to dramatically and immediately reduce crashes and the related injuries and fatalities.

SPR-4234: Weigh in Motion Implementation and Data Quality Control for Asset Damage Reduction

Principal Investigators - Darcy Bullock, James Handy
Start Date - 04/01/2018

This project has two components. 1) Developing a shared vision among INDOT, ISP, and DOR on the business processes and agency interaction required for implementation of WIM based enforcement. The Purdue Technical Assistance Program (TAP) will lead that initiative.  2) The Purdue Traffic Lab will characterize the WIM accuracy of a newly constructed site on I-70 to define expected weight tolerances, routine calibration requirements, and recommend changes to INDOT’s current WIM construction specification. 


SPR-4231: MEPDG Traffic Load Spectra for Local, Minor Arterial, Major Collector, and Minor Collector Roads

Principal Investigators - Yi Jiang, Shuo Li (INDOT), Tommy Nantung (INDOT)
Start Date - 06/01/2018

The Mechanistic-Empirical Pavement Design Guide (MEPDG) has been employed for pavement design by INDOT since 2009 and has generated efficient pavement designs with a lower cost. The traffic input module in the current INDOT MEPDG pavement design procedures was developed from traffic data collected over a time period of 2000 to 2004. there is a need to utilize the recent traffic data to develop the traffic spectrum as more accurate key input for INDOT’s pavement design using the MEPDG.

This project was completed as of September 23, 2020. A final report is pending.

SPR-4230: Alternative Quality Assurance Methods for Compacted Subgrade

Principal Investigators - Peter Becker (INDOT)
Start Date - 03/01/2018

The overall goal of this research study is to develop quality assurance procedures for DCP, LWD, and APLT that link in situ measurements with design parameters (i.e., resilient modulus).

SPR-4225: INDOT Research Program Benefit Cost Analysis - Return on Investment (ROI)

Principal Investigators - Bob McCullouch
Start Date - 07/01/2017

This project will analyze research projects on an annual basis from a cost benefit perspective. Results will be reported annually through an end of the year report. This analysis provides a perspective on the INDOT investment in Research.

SPR-4222: Seismic Evaluation of Indiana Bridge Network and Current Bridge Database for Asset Management

Principal Investigators - Shirley Dyke, Julio Ramirez, George Mavroedis (Univ. of Notre Dame)
Start Date - 01/01/2018

The goal of this project is to evaluate the suitability of the current asset management database for performing seismic vulnerability assessment and recommend, as appropriate, any needed improvements to conduct a more robust risk-based assessment. A two-level seismic evaluation is proposed: (i) A first level screening of the bridges in the state using data already available in the asset management database; followed by (ii) A detailed evaluation of selected representative bridges. Gaps in the information that effect the ability to perform appropriate seismic vulnerability assessment will be identified. Based on the results of the two level evaluation, general retrofit strategies will also be presented.

SPR-4221: Post-Fire Assessment of Prestressed Concrete Bridges in Indiana

Principal Investigators - Amit Varma, Jan Olek, Christopher Williams
Start Date - 01/08/2018

The overall goal of this project is to develop and verify tools needed to inspect, assess, and evaluate the state of Prestressed concrete bridges in Indiana subjected to realistic fire scenarios.  The project tasks are to evaluate:  (i) the current state-of-knowledge, (ii) the effects of fire induced damage on the deterioration of concrete materials, steel strands, bond and transfer length, (iii) the effects of fire induced damage on the serviceability, strength, and structural performance of prestressed concrete bridge elements used in Indiana, and (iv) the effects of fire damage on a decommissioned INDOT prestressed concrete bridge with emphasis on deterioration of material properties, structural cracking and spalling, serviceability, and strength performance.

SPR-4218: Performance of Right Turn Lane Designs at Intersections

Principal Investigators - Satish Ukkusuri
Start Date - 01/01/2018

The project will conduct a systematic analysis of safety issues related to right turn lanes at intersections. This project will obtain the crash data for various right turn lanes, identify factors that contribute to crashes at the intersections and provide recommendations for right turn lane design.

SPR-4217: Speed Management in Small Citities and Towns - Guidelines for Indiana

Principal Investigators - Andrew Tarko
Start Date - 09/01/2017

Rural arterials passing through small towns and cities pose a major safety risk due to high speeds of through traffic in areas with local and vulnerable road users. The project will deliver: 1) The effective ways to manage vehicle speeds including road design, traffic management and control, and modern technology-based solutions.  2)  Guidelines on conditions that justify use of the countermeasures including signage, markings, and speed display, limited changes in the cross-section, gateways, changes in horizontal alignment, and combinations of these countermeasures.

This project was completed as of April 21, 2020. A final report is pending.

SPR-4216: Statistical Analysis of Safety Improvement and Integration into Project Design Process

Principal Investigators - Andrew Tarko
Start Date - 09/01/2017

This study will modify the RoadHAT tool to facilitate two additional tasks:  (1) Design support in the preliminary design stage for small and medium safety-improvement projects, and (2) Post-construction evaluation of the effectiveness of projects in improving road safety to meet the current federal requirement.  The project will deliver the modified computer tool with a revised user manual. 

This project was completed as of April 21, 2020. A final report is pending.

SPR-4215: Rumble Stripes and Pavement Markings Delineations

Principal Investigators - Darcy BullockAyman Habib
Start Date - 01/01/2018

INDOT is seeking to identify cost effective durable pavement markings that provide good visibility during day, night, and wet conditions. Worn pavement markings reduce day and nighttime visibility, which increases driver workload and can lead to increased crashes. This project will define performance measures for pavement marking technology that can perform well over several years, improves safety, and reduces on-road maintenance time.

SPR-4213: Determining Concrete Patch Locations other than Visual

Principal Investigators - James Krogmeier, Mark Bell
Start Date - 01/01/2018

In this research, the fusion of data from two current INDOT sensors (WayLink 3D Laser Imaging and GSSI ground penetrating radar) will be investigated and methods will be developed to use them to create a patching and classification table. The proposed approach is to use the 3D imaging system to create a 1 mm resolution image of the pavement surface and develop an artificial intelligence based technique, which may allow narrowing the patch search area in order to concentrate computational and human resources for analyzing the GPR data.

SPR-4212: Structural Evaluation of Full-depth Flexible Pavement Using APT

Principal Investigators - John Haddock
Start Date - 03/01/2018

The objectives of this project include:  1. Understanding mechanical behaviors of this full?depth asphalt pavements including dense grad and SMA surfaces. 2. Verifying/calibrating/validating MEPDG rutting models (asphalt and subgrade) for the thin full?depth asphalt pavements.

SPR-4211: Implementing the Superpave 5 Asphalt Mixture Design Method and Refining the INDOT Ndesign Table, Lift Thickness, and Mixture Compactability

Principal Investigators - John Haddock
Start Date - 01/01/2018

The objectives of this project are twofold. The first is to document construction, and analyze the resulting data from 12 Superpave 5 projects to determine if any final adjustments need to be made to the Superpave 5 design method. Secondly, the team will make a search of the literature concerning asphalt mixture lift thickness and its effect on asphalt pavement mat density and make recommendations on lift thicknesses currently used by the INDOT. 

This project was completed as of April 29, 2020. A final report is pending.

SPR-4209: Real Life Experience with Major Pavement Types

Principal Investigators - Rebecca McDaniel
Start Date - 11/01/2017

This project will examine the performance of selected pavements near the ends of their projected service lives to determine their actual life cycle and mode of failure. The intent is to investigate the true life cycle costs, accuracy of design assumptions, and the ‘weakest links’ that contribute to failure.  Appropriate changes in the structural and material designs can then be made to reduce or eliminate these failure mechanisms to prolong the pavement service lives. 

SPR-4165: Verification of Bridge Foundation Design Assumptions and Calculations

Principal Investigators - Rodrigo Salgado, Monica Prezzi, Daniele Perissin
Start Date - 04/14/2017

Investigation of transfer of dead and live loads through the structure of the Sagamore bridge to its pile foundations combined with detailed bridge foundation movement monitoring in order to assess current design methods and software.

This project was completed as of July 14, 2020. A final report is pending.

SPR-4161: Implementation Proposal for (SPR-3300) Development of Methods and Specification for the Use of Inertial Profilers and the International Roughness Index for Newly Constructed Pavement

Principal Investigators - Dwayne Harris (INDOT)
Start Date - 02/13/2017

The objective of the implementation study is to provide input/insight into the development of the newly constructed pavement smoothness QA/QC verification plan. An analysis will be conducted to determine how the INDOT system data compares with the data provided by the contractor. These results will aid in the development of the validation plan. Training materials will be developed to educate INDOT project engineers regarding inertial profiling, IRI, and the specifics of the new specification.

SPR-4154: Continued Support of the Mobile Infrastructure Materials Testing Laboratory

Principal Investigators - John Haddock
Start Date - 01/01/2017

The project will continue deployment of the Mobile Infrastructure Materials Laboratory (MIMTL) for use on concrete projects throughout Indiana, at both the state and local agency levels.

This project was completed as of February 3, 2020. A final report is pending.

SPR-4153: INDOT Highway Lighting Support Services

Principal Investigators - Robert Kramer
Start Date - 12/01/2016

This project will provide technical support, testing services, and analysis regarding the design and options for the implementation of LED and other solid state based highway lighting. The Energy Efficiency and Reliability Center (EERC) will support development of the testing and evaluation program. A written report of results will be provided upon completion of field testing.

A final report is pending publication.

SPR-4151: Synthesis Study: Overview of Readily Available Culvert Inspection Technologies

Principal Investigators - Joseph Sinfield
Start Date - 01/01/2017

This Synthesis Study will enhance awareness of existing methods to facilitate in?situ inspection of small to medium culverts. Specifically, two work streams will be pursued to realize thisobjective:

This project was completed as of September 19, 2018. A final report is pending.

SPR-4122: Repair and Strengthening of Bridges in Indiana Using Fiber Reinforced Polymer (FRP) Systems

Principal Investigators - Christopher Williams, Robert Frosch
Start Date - 01/01/2017

The application of fiber reinforced polymer (FRP) has been identified as a cost-effective strengthening and repair technique for concrete bridge components with potential for long-term cost savings. To ensure successful implementation of FRP systems, INDOT needs assistance to determine the most suitable applications of FRP, establish proper installation techniques, and verify the increase in strength and/or stiffness provided by the material. The proposed research will result in a guidebook and recommended specifications to aid in the application of FRP.

SPR-4116: Investigation of Design Alternatives for the Subbase of Concrete Pavments

Principal Investigators - Marika Santagata, Philippe Bourdeau
Start Date - 01/01/2017

The study will develop recommendations for new subbase designs based on a comprehensive review of the literature, a survey of best practices across the US and abroad and an experimental program focused on unstabilized layers alone and in combination with geotextiles.

This project was completed as of January 7, 2020. A final report is pending.

SPR-4109: Improvement of Stiffness and Strength of Backfill Soils through Optimization of Compactions Procedures and Specifications

Principal Investigators - Monica Prezzi, Rodrigo Salgado
Start Date - 01/01/2017

The main goals of this project are the development of specific guidelines for effective compaction of backfill materials of different gradations and the modification of INDOT specifications to include the vibration frequency, amplitude, moisture content and lift thickness required to compact in the field backfill materials of different gradations.

This project was completed as of June 10, 2020. A final report is pending.

SPR-4108: Development of Comprehensive CPT-Based Geotechnical Design Manual for Indiana Transportation Infrastructure

Principal Investigators - Monica Prezzi, Rodrigo Salgado
Start Date - 01/01/2017

The main goal of this project is the development of a comprehensive CPT-based geotechnical design manual for site exploration, interpretation of soil behavior, and design of shallow/deep foundations, embankments and retaining walls in Indiana. Currently, geotechnical designs are carried out using soil strength and stiffness parameters that are obtained from time-consuming and relatively expensive laboratory tests. Since the CPT is an in situ test, the manual will provide the basis for INDOT engineers to use CPT results directly for the assessment of site conditions and the design of geotechnical projects in the future.

SPR-4102: Building, Evaluating, and Improving LiDAR-based Traffic Scanner Prototypes for Implementation to INDOT Practice - Phase II

Principal Investigators - Andrew Tarko, Mario Romero, Kartik Ariyur
Start Date - 08/15/2016

The LiDAR-based system - TScan - addresses the need for fully automatic collection of comprehensive intersection data and analyzing these data where costly human observers or hybrid techniques (machine + human) are used. The proposed Phase II will develop a prototype unit to be evaluated and used by INDOT. An integration algorithm will be developed to enable use of two TScan units to cover large intersections with wide medians and channelization islands. Furthermore, proposed incorporation of traffic signals into the TScan results will help analyze signalized intersections.

SPR-4004: Development of Subgrade Stabilization and Slab Undersealing Solutions for PCC Pavements Restoration and Repairs

Principal Investigators - Jan Olek
Start Date - 07/01/2016

Project deliverables will include protocols for proposed stabilization and slab undersealing techniques that will be in the form suitable for implementation in INDOT’s specifications. In addition, the proposed field trials of the proposed solutions will provide a credible set of information that will help with the implementation efforts.

This project was completed as of April 29, 2020. A final report is pending.

SPR-4003: Improving the Quality of Concrete for INDOT Projects

Principal Investigator - Jason Weiss
Start Date - 07/01/2016

The project will be conducted at Oregon State University and includes two components:

  • Implementing rapid durability measure on conrete (resistivity; formation factor)
  • Evaluating internal curig for other PCC beyond High Performance

This project was completed as of April 27, 2020. A final report is pending.

SPR-3913: The Assessment of Legal and Proposed New Permit Loads on Bridge Rating and Posting Policies to COMLPL with Latest AASHTO and MBE Guidelines

Principal Investigators - Mark Bowman, Arun Prakash
Start Date - 01/01/2015

The proposed research work will address two needs. First, it will review legal loads in Indiana to determine if they encompass the truck loads that are commonly allowed to use the state and local bridge system. These loads must satisfy the requirements prescribed by AASHTO in the MBE and, if not, then to develop state recommended legal loads that would satisfy the AASHTO requirements. Second, it will also examine the influence of permit loads on load rating of Indiana bridges, including both the Michigan train loadings as well as the newly proposed 120,000-lb permit truck.

This project was completed as of May 18, 2018. A final report is pending.

SPR-3902: Performance Acceptance and Performance Monitoring of Pavement Using Falling Weight Deflectormer (FWD) and International Roughness Index (IRI)

Principal Investigators - Tommy Nantung (INDOT), Hyonho Chun, Richard Ji (INDOT)
Start Date - 01/01/2015

The objectives of this research project are geared toward determining a practical solution in INDOT pavement acceptable structural performance limits and to construct pavement structural performance curves/models for scoping, design, and preservation purposes. The ultimate goal of the research is to review the structural and functional performance of selected pavement sections and provide the Department with better practical tools for pavement engineers during scoping, design, construction, and maintenance processes.

SPR-3711: MEPD Implementation (Validation/Model Calibration/Acceptable Distress Target/IRI Failure Trigger/Thermal Selection/binder Selection) and Climatic Data Generation

Principal Investigator - Tommy Nantung (INDOT), Jusang Lee (INDOT), Bob McCullouch
Start Date - 7/1/2013

The goal of this project is refinement of the INDOT MEPDG design procedure to match Indiana's conditions and parameters more closely. The following objectives are established to meet this end goal:

  1. Review the performance criteria in MEPDG and establish new pavement design performance criteria.
  2. Verify and validate the performance models in MEPDG and eliminate remaining conservative pavement design criteria.
  3. Assure that the current INDOT policy regarding the Superpave asphalt pavement guidelines supersedes the asphalt pavement dynamic modulus in the MEPDG.
  4. Create a comprehensive Indiana climatic data file in XML format for input into MEPDG.