All Research Projects


SPR-4646: Advancing INDOT's Friction Test Program for Seamless Coverage of System

Principal Investigators Yi Jiang, Shuo Li (INDOT)
Start Date - 01/01/2022

Pavement friction is one of the main factors affecting roadway safety. The current INDOT’s friction test program needs to be enhanced to include the polish-prone spots such as horizontal curves and highway sections with steep grades. In addition, the INDOT R&D Division has increasingly received requests for friction testing on pavement markings at crash sites such as two-lane rural highways and intersections over the past few years. However, no standard method or practice is currently widely accepted for testing and evaluating the friction performance of pavement markings nationwide. Color surface treatment (CST) (i.e., colored pavement) is increasingly used within bus and bike lanes to increase the visibility of the facilities and reduce unauthorized lane uses. CST is also anticipated to enhance safety through durable friction performance under frequent bus braking and acceleration. This study is proposed to address above issues related to friction testing and improve highway safety.

SPR-4642: Effectiveness of Contrast Markings on Roadways and Orange Markings in Work Zones

Principal Investigators - Michael Williamson (ISU)
Start Date - 07/01/2021

This project will quantify the safety and operational benefits of different pavement marking types that will allow for better decision making at the state level. Crash reductions from this project have the potential to save lives and reduce the costs to the economy. This project will also develop formal guidelines and design standards for contrast pavement markings and orange markings in work zones.

SPR-4639: Connected Vehicle Centric Dashbords for TMS of the Future

Principal Investigators Darcy Bullock
Start Date - 10/01/2021

INDOT has expanded the use of connected vehicle data to develop maps of vehicle speeds, hard braking events, and integrate ITS assets such as cameras. The penetration of connected vehicles in Indiana now generates over 10 billion records per month. Specialized tools have been developed on Purdue servers to facilitate real time processing of this data. This project continues the development and implementation of those dashboards across multiple areas of the agency.

SPR-4638: Integration of the Lane-specific Traffic Data Generated from Real-time CCTV Videos into INDOT's Traffic Management System

Principal Investigators - Stanley Chien (IUPUI), Yaobin Chen (IUPUI), Christopher Lauren (IUPUI)
Start Date - 07/01/2021

This project aims to integrate TASI-generated real-time lane-level traffic status data into INDOT traffic management systems to enable INDOT to utilize this valuable information. TASI will collaborate with INDOT users to specify and satisfy dissemination and improvement requirements based on INDOT's needs.

SPR-4637: Speed Enforcement in Work Zones & Synthesis on Cost-Benefit Assessment of Installing Speed Enforcement Cameras on INDOT Road Network

Principal Investigators Darcy Bullock
Start Date - 07/01/2021

High speed movement of vehicles through construction work zones increases the risk and severity of crashes to both motorists and construction workers. This project will develop cost effective and scalable performance measures to identify location and time of day when enforcement could/should be targeted and develop quantitate estimates of the potential benefit of automated enforcement.

SPR-4636: Research Support to INDOT on I-465 Southeast Variable Speed Limit and Ramp Meter Project

Principal Investigators Darcy Bullock
Start Date - 07/01/2021

This project will develop analysis techniques and performance measures for the variable speed limit (VSL) and ramp meter deployment for I-465 on the southeast side of Indianapolis. These performance measures will be used to provide agile adjustments to the VSL deployments and inform the agency on expected benefits in future deployments on urban freeways elsewhere in the state.

SPR-4635: New Repair Strategies for Life-Cycle Extension Corroded Steel Girder Bridges

Principal Investigators Amit VarmaRobert Connor
Start Date - 09/01/2021

This project collaborates and builds upon ongoing project SPR-4527 on the “Strength of Corroded Steel Beam Bridges and Effects on Load Rating.” Decommissioned corroded steel girder bridges obtained from the North-Split Reconstruction project will be shared between the proposed project and SPR 4527. It is important to note that SPR 4527 focuses only on the strength and load rating of corroded steel girder bridges, not their rapid repair or life-cycle extension.

SPR-4634: Investihgating Consistency among Bridge Insepectors Using Simulated Virtual Reality Testbed

Principal Investigators Mohammad JahanshahiShirley Dyke
Start Date - 08/15/2021

Benefit: This project will develop virtual reality (VR)-based modules where trainees will be engaged in realistic scenarios for rehabilitation and maintenance decision-making. The immersive experience affords better engagement with the training environment. A software to be used with a VR headset will provide a training platform for INDOT inspection crews. Inspectors will be exposed to various bridge inspection scenarios and their performance will be evaluated quantitatively.

SPR-4631: Evaluation of the Potential Benefits of Implementing the AASHTO Guide Specification for the Analysis and Identification of Fracture Critical Members and System Redundant Members

Principal Investigators - Robert Connor, Cem Korkmaz, Amit Varma
Start Date - 08/01/2021

In 2018, The AASHTO Committee on Bridges and Structures (COBS) approved the AASHTO Guide Specifications for the Analysis and Identification of Fracture Critical Members and System Redundant Members and the AASHTO Guide Specifications for Internal Redundancy of Mechanically-fastened Built-up Steel Members. This project will conduct an exploratory study on a set of bridges in the state of Indiana where both the IRM and SRM Guide Specifications are evaluated for implementation within the state.

SPR-4630: Implementation Exploration of Autonomous Vehicles: Impacts of Autonomous Truck-Mounted Attenuator (ATMA) on INDOT Work Zone Safety, Mobility, and Crews; Perception/Behavior/Productivitiy

Principal Investigators Yunfeng ChenJiansong Zhang, Yiheng Feng
Start Date - 07/26/2021

Utilization of ATMA is believed to protect crews and drivers from crashes caused by reckless and distracted drivers. This study will develop a tailored ATMA plan based on observations from existing TMA operations, INDOT crews’ perception of ATMA and characteristics of ATMA’s operation environment in Indiana. The project will evaluate the ATMA in field tests and provide recommendations for implementation.

SPR-4629: Implementation and Assessment of Work Zone Intrusion Technologies

Principal Investigators Sogan Hasanzadeh
Start Date - 07/01/2021

To assist INDOT with enhancing the safety of motorists and workers in construction work zones on high-speed roadways, this study aims to provide INDOT work zone safety committee with guidance on selection, assessment and implementation of workzone intrusion technologies. The proposed research will include comprehensive and accurate information about innovative technologies to improve safety in work zones (guidebook, training, and strategies).

SPR-4628: Exploration of Color Patterns for Improving Work Zone Safety and Perception

Principal Investigators Yunfeng ChenJames JenkinsJiansong Zhang
Start Date - 08/23/2021

INDOT had 5,470 collisions every year on average between 2015 and 2019, with many occurring in Indiana work zones and causing significant loss to both construction workers and vehicle drivers. This study will identify identify color-related root causes of accidents at Indiana work zones, propose solutions (e.g., different color schemes to better convey information), and improve INDOT employees’ health and safety.

SPR-4625:  BIM Standards for Roads and Related Transportation Assets

Principal Investigators Jiansong Zhang, Yunfeng ChenYunfeng ChenJames JenkinsJiansong Zhang
Start Date - 01/01/2022

This project will develop automation technology to extract drainage and pavement components detailed information from IFC‐based BIM instance models, for mapping to linear referenced GIS data.

SPR-4622:  Integration of BIM for Bridge Modeling

Principal Investigators Jiansong ZhangYunfeng Chen, Hazar Nicholas Dib
Start Date - 09/01/2021

This project will create a technology‐process guideline for integrating BIM into the design, construction, and asset management workflow based on the PDF2BIM tool and BIM maturity model roadmap.

SPR-4620: Developing AI-assisted In-situ NDT Method for Air-Void Distribution Testing in Fresh and hardened Concrete

Principal Investigators Na (Luna) Lu, Guang Lin
Start Date - 09/1/2021

This project will develop a field-deployable NDT method to evaluate the air void distribution in fresh and hardened concrete. The benefits of this program include 1) improving concrete pavement quality and long-term durability; 2) avoiding poor concrete quality and related materials, in-house labor and equipment cost; and 3) avoiding over design, and lower construction and maintenance cost.

SPR-4619:  Back-calculated Dynamic Modulus Master Curve from the Time Histories of Falling Weight Deflectometer Surface Deflections

Principal Investigators - Seonghwan Cho (INDOT), John Haddock
Start Date - 09/01/2021

The analysis of deflection data collected by the FWD provides a quick and reliable way of characterizing the properties of the asphalt layers as well as assessing the load-carrying capacity of existing pavement structures. This research will provide the back-calculation methodology of the |E*| master curve for the asphalt pavement layer using the time histories of FWD surface deflections and layered viscoelastic forward algorithms in an iterative dynamic back-calculation procedure.

SPR-4616:  GIS based Geotechnical Database for Collaborative GIS

Principal Investigators Rodrigo Salgado
Start Date - 04/30/2022

The project aims to develop the architecture for a geotechnical database for INDOT engineers to use in design. It will focus on identifying target applications, field and laboratory tests, and methods of interpretation and design to be covered and how to optimally structure the database.

SPR-4615:  I-69 Added Travel Lanes Data Collection and Analysis

Principal Investigators - Boonam Shin (INDOT), Jusang Lee (INDOT), John Haddock
Start Date - 07/01/2021

The SPR-4517 project includes tasks to monitor and analyze the pavement sensor data (i.e., stress, strain, temperature, moisture, traffic, and groundwater level) from the I-69 added travel lanes test site near Anderson, IN. While the project began to develop a set of comprehensive data collection and analysis tools for evaluating the effectiveness of the various drainage scenarios and high-strength subgrade treatment options for the I-69 test site, funding was committed for only six months, due to the nature of the funding cycle. To complete the project, additional research and funding are necessary.

SPR-4609:  Economic Effect of Active Transportation Features and Association of Healthcare Industry and Transportation

Principal Investigators Ananth IyerSatish UkkusuriSteven Dunlop
Start Date - 07/21/2021

The goals of this project are twofold: To understand the link between active transportation features and a region’s economic viability and to identify the relationship between transportation and Indiana’s healthcare industry, services, and access. The outcome of research will inform INDOT on transportation practices and policies favorable to the state’s economic status and its linkage to Hoosiers’ quality of life.

SPR-4608:  Forecasting Shifts in Hoosiers' Travel Demand and Behavior

Principal Investigators Nadia Gkritza, Satish Ukkusuri, Hua Cai, Ananth Iyer
Start Date - 10/01/2021

This project will develop long term future forecasts of transportation demand conditions for people and freight— both conventional and micro-freight package delivery in Indiana.  The results of this study will enable the agency to properly adjust its business practices, planning models/applications (e.g., Statewide Travel Demand Model or traffic microsimulation), and investment decisions to best serve those future conditions; and to carry out long-range scenario planning.

SPR-4607:  Full-scale Dynamic Wireless Power Transfer and Pilot Project Implementation

Principal Investigators John HaddockNadia GkritzaDionysios AliprantisSteven Pekarek
Start Date - 07/01/2021

The objectives of this project are: i) develop a better understanding of pavement/ dynamic wireless power transfer (DWPT) system interaction, including DWPT reaction to environment and traffic loads and pavement materials responses to operational DWPT; and ii) support the design and installation of a 215 kW DWPT system pilot for heavy-duty vehicles on an existing INDOT roadway. The pilot project will help develop construction techniques and provide a real-world testbed for optimizing the pavement/DWPT system. 

SPR-4606: Overweight Divisible Loads: Permit Administration and Impact on Indiana’s Road Infrastructure and Safety

Principal Investigators Samuel LabiSteven DunlopKumares Sinha
Start Date - 06/07/2021

The study will provide information to INDOT to support deliverables to the legislature. It will also determine the actual infrastructure performance at permitted routes; and identify any need to revise
permit fees to incentivize user behavior. The study will measure the anticipated changes in infrastructure consumption due to any fee changes, document impacts of fee structures on shippers, and explore financial levers to facilitate permitting. Deliverables will include a permit Calculator (for carriers) to calculate benefits of axle addition, and a dashboard (for INDOT) to monitor permitting impacts. Finally, carriers will be surveyed for their perspectives and possible responses to future OW-permitting initiatives.

SPR-4603: Crowdsourcing/Winter Operation Dashboard Upgrad

Principal Investigators Darcy Bullock
Start Date - 09/01/2021

INDOT made extensive use of winter operations dashboards in 2020-21 that integrated Parsons’s telematics based web cameras, AVL positions, spreader rate controls and national weather service data. This project extends this work to include additional data elements (such as wind shield wiper data, traction control/wheel slip, ABS, headlights, and pavement temperature). Integrating this data with current road side cameras will provide an opportunity for more uniform winter weather operations.

SPR-4600: Impacts to Traffic Behavior from Queue Warning Truck - Current Pilot Project

Principal Investigators Darcy Bullock
Start Date - 05/01/2021

INDOT is implementing a pilot project using traffic queue warning (TQW) trucks for advanced warning of traffic queues on selected interstate projects The objective of this proposal is to develop guidelines for placement considerations adjacent to exits, procedures for monitoring impact of diverting traffic, and assessment protocols for monitoring the effectiveness of TQW on the Interstate.

SPR-4549: Salt Monitoring and Reporting Technology (SMART): Development of a Photogrammetric System for Salt Inventory Reporting

Principal Investigators Ayman HabibDarcy Bullock
Start Date - 02/01/2021

Salt is an expensive commodity that is critical for successful winter operation. This project proposes the development of a stationary multi-camera photogrammetric system for salt inventory (volume estimation and reporting) in an indoor environment – specifically, dome-like and rectangular storage facilities.

SPR-4548: Traffic Signal Detection Systems INDOT Evaluations

Principal Investigators - Jay Grossman (Valparaiso University), Carmine Polito (Valparaiso University)
Start Date - 02/01/2021

The Indiana Department of Transportation (INDOT) continues to evaluate new products for vehicle detection at traffic signals. Accurate and low-latency vehicle detections are central to ensuring efficient and safe operations at actuated traffic signals. New products in this field become available on a regular basis. Having additional detection technologies available aids INDOT in finding the most cost-effective system for given site constraints. This project will evaluate the performance of up to three new vehicle detection systems and compare their results to INDOT’s established standards.

SPR-4547: Data Interpretation of Automated Plate Load Test (APLT) for Realtime, In Situ Determination of Unbound Layer Resilient Modulus

Principal Investigators - Peter Becker (INDOT), Marika SantagataPhilippe Bourdeau
Start Date - 01/01/2021

Findings from this study will inform both pavement design and pavement quality assurance processes for INDOT. ALPT measurements of aggregates and subgrades will yield high-quality, in situ resilient modulus measurements that can validate (or refute) current INDOT pavement design assumptions. Refined resilient modulus inputs can be incorporated into INDOT pavement design upon completion of the study.

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.

This project was completed as of November 17, 2021. A final report is pending.

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-4535: Development of a Formalized Program for In-service Inspection of Pedestrian Bridges

Principal Investigators Robert Connor
Start Date - 01/01/2021

Many pedestrian bridges are complex structures and may utilize non-redundant cable supported walkways, curved super structures, and materials not commonly used in highway bridges. Some of these bridges are over busy state highways and carry many pedestrians daily. The absence of any state-wide uniform inspection requirements elevates the risk associated with such bridges. This research project addresses the issues related to in-service inspection needs associated with pedestrian bridges.

SPR-4532: Synthesis Study: Repair and Durability of Fire Damaged Prestressed Concrete Bridge Girders

Principal Investigators Amit Varma
Start Date - 07/01/2021

The goals of this project are to conduct a synthesis study including literature review and survey studies of: (i) repair / retrofit methods for prestressed concrete bridge girders, (ii) assessing the structural performance (serviceability and strength) of repaired girders, and (iii) assessing the durability of damaged, unrepaired, and repaired prestressed girders.

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-4517: Field Drainage Evaluation Test on I-69 Added Travel Lanes in Indiana

Principal Investigators - Boonam Shin (INDOT), Jusang Lee (INDOT), John Haddock
Start Date - 01/01/2020

INDOT implemented the application of advanced subsurface drainage systems on the I-69 added travel lanes near Anderson, IN. Evaluation of the drainage systems constructed in the test strips is needed.  Optimized field drainage evaluation methods and comprehensive analysis-visualization tools with advanced data analysis techniques and software will be provided through this study.

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-4511: Integrating Transformative Technologies in Indiana's Transportation Operations

Principal Investigators Samuel LabiJon FrickerNadia Gkritza, Kumares Sinha
Start Date - 11/15/2020

Research objectives include:  Documentation of the broader transportation impacts in Indiana of platooning and other emerging freight-carrying disruptive technologies and practices; Identification of favorable opportunities for Indiana & INDOT to capitalize on the likely future conditions of highway freight transportation; Establishment of proactive initiatives by the state to accommodate and foster the freight operations-related emerging technologies; Evaluation methodology for assessing truck platoon impacts that can be used by INDOT.

SPR-4509: A Strategic Assessment of Needs and Opportunities for Wider Adoption of Electric Vehicles 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-4508: Forecasting Freigh Logistics Needs & INDOT Plans for the Needs

Principal Investigators - Ananth IyerSteven Dunlop
Start Date - 11/01/2020

The objective is to understand INDOT’s role in enabling Indiana’s industry level competitiveness, and forecasting how this is expected to evolve in the next 20 years. The study will seek input from industry representatives to develop this perspective and examine Indiana’s competitiveness relative to neighboring states. The study will include opportunities to leverage multimodal terminals when appropriate. The goal is to link to quantifiable metrics, but temper their interpretation with qualitative feedback from industry participants.

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-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-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-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-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.

This project was completed as of October 18, 2021. A final report is pending.

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-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.

This project was completed as of October 12, 2021. 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.

This project was completed as of October 12, 2021. A final report is pending.

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-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.

This project was completed as of September 21, 2021. A final report is pending.

SPR-4413: Assessing the Travel Demand and Mobility Impacts of Transformative 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-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.

This project was completed as of June 25, 2021. A final report is pending.

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-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.

This project was completed as of September 14, 2021. 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-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-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-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-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.

This project was completed as of May 18, 2021. 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-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.

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-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-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.

This project was completed as of July 6, 2021. A final report is pending.

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-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.