The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations.
Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.
In addition to a review of the relevant literature, the researchers conducted field studies to observe and record traffic activities at intersections on rural two-lane highways with passing lanes or turn lanes. The field studies produced speed data and video recordings of turning maneuvers to analyze for key findings. Those findings were then used
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Fitzpatrick, K., Brewer, M. A., Kutela, B., & Florence, D. (2022). Considerations for Super 3 Cross-Section in High-Volume Rural Corridors with Turning Traffic [Project Summary] (Report No. 0-7044). Texas A&M Transportation Institute. https://rosap.ntl.bts.gov/view/dot/72327
Fitzpatrick, Kay, Marcus A. Brewer, Boniphace Kutela, and David Florence. Considerations for Super 3 Cross-Section in High-Volume Rural Corridors with Turning Traffic [Project Summary]. Report no. 0-7044. Texas A&M Transportation Institute, 2022. https://rosap.ntl.bts.gov/view/dot/72327.
Fitzpatrick, Kay, et al. Considerations for Super 3 Cross-Section in High-Volume Rural Corridors with Turning Traffic [Project Summary]. Texas A&M Transportation Institute, 2022, Report no. 0-7044, ROSA P. https://rosap.ntl.bts.gov/view/dot/72327.
The findings of this project indicate that installation of bikeway facilities can significantly improve safety for bicyclists. Implementing conventional bicycle lanes can help reduce total, fatal and injury, and property-damage-only crashes by 41–49 percent. Buffered bicycle lanes can improve safety by 20–65 percent, and separated bicycle lanes can
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Dadashova, B., Dixon, K., Hudson, J., Benz, R., Dai, B., Li, X., Sener, I., Turner, S., & Sarda, S. (2022). Addressing Bicyclist Safety Through the Development of Crash Modification Factors for Bikeways [Project Summary] (Report No. 0-7043). Texas A&M Transportation Institute. https://rosap.ntl.bts.gov/view/dot/64292
Dadashova, Bahar, Karen Dixon, Joan Hudson, Robert Benz, Boya Dai, Xiao Li, Ipek Sener, Shawn Turner, and Soham Sarda. Addressing Bicyclist Safety Through the Development of Crash Modification Factors for Bikeways [Project Summary]. Report no. 0-7043. Texas A&M Transportation Institute, 2022. https://rosap.ntl.bts.gov/view/dot/64292.
Dadashova, Bahar, et al. Addressing Bicyclist Safety Through the Development of Crash Modification Factors for Bikeways [Project Summary]. Texas A&M Transportation Institute, 2022, Report no. 0-7043, ROSA P. https://rosap.ntl.bts.gov/view/dot/64292.
This project will build on the pilot to integrate key climate change vulnerability metrics from the 2014 study into decision-making at the agency using such tools as BRIM and TAMS: implement the Statewide Multimodal Transportation Plan's System Stewardship strategies and related work plan items to identify vulnerabilities and assess risks to the tr
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Dorney, C., Amos, J., Cornetski, G., Enright, P., & Grose, T. (2022). Extreme Flood Vulnerability Analysis. Minnesota. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/64406
Dorney, Chris, Josh Amos, Gregg Cornetski, Peter Enright, and Tim Grose. Extreme Flood Vulnerability Analysis. Minnesota. Department of Transportation, 2022. https://rosap.ntl.bts.gov/view/dot/64406.
Five continuous years of MaxEnt model projections for fall monarch roadkill in the Texas Central Funnel from 2016 to 2020 agree with simple extrapolations in revealing a biennial cycle of higher roadkill in the even-numbered years of 2016, 2018, and 2020, representing about 2.5% of the monarch overwintering population. In contrast, roadkill represe
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Tracy, J., Birt, A., McFalls, J., Prozzi, J., Coulson, R. K., & Steele, J. (2022). Evaluating Fall Monarch Butterfly Roadkill Hotspot Incidence and Potential Roadkill Mitigation. Texas Department of Transportation. Research and Technology Implementation Office. https://rosap.ntl.bts.gov/view/dot/72727
Tracy, James, Andrew Birt, Jett McFalls, Jolanda Prozzi, Robert K. Coulson, and Joanne Steele. Evaluating Fall Monarch Butterfly Roadkill Hotspot Incidence and Potential Roadkill Mitigation. Texas Department of Transportation. Research and Technology Implementation Office, 2022. https://rosap.ntl.bts.gov/view/dot/72727.
Tracy, James, et al. Evaluating Fall Monarch Butterfly Roadkill Hotspot Incidence and Potential Roadkill Mitigation. Texas Department of Transportation. Research and Technology Implementation Office, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/72727.
Sheet pile walls are structures that FDOT has only used for permanent and temporary lateral support. The Department has not allowed these elements to be used as vertical load bearing elements because of the inability to confirm bearing resistance during construction. Current FDOT practice requires discrete deep foundation (piles or drilled shafts)
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Song, X., Taghavi, A., Menon, S., Wang, K., & Zhang, Z. (2022). Determining Bearing Resistance of Cantilever Sheet Piles (Report No. AWD03567). Florida Department of Transportation. https://rosap.ntl.bts.gov/view/dot/72411
Song, Xiaoyu, Amirata Taghavi, Shashank Menon, Kaiqi Wang, and Zhe Zhang. Determining Bearing Resistance of Cantilever Sheet Piles. Report no. AWD03567. Florida Department of Transportation, 2022. https://rosap.ntl.bts.gov/view/dot/72411.
Song, Xiaoyu, et al. Determining Bearing Resistance of Cantilever Sheet Piles. Florida Department of Transportation, 2022, Report no. AWD03567, ROSA P. https://rosap.ntl.bts.gov/view/dot/72411.
In the State of Iowa passengers age 18 and older are not required by law to use seat belts when they ride in the back seat of a motor vehicle. Only 23.1% of adult rear-seat passengers involved in fatal crashes in Iowa from 2013-2019 were belted compared to 70.5% of adult front-seat passengers. This project aimed to estimate and compare the costs of
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Reyes, M. L. (2022). Effect of Seat Belt Use on Injury Severity for Adult Rear-Seat Occupants Injured in Motor Vehicle Crashes. University of Iowa. National Advanced Driving Simulator. https://rosap.ntl.bts.gov/view/dot/73651
Reyes, Michelle L.. Effect of Seat Belt Use on Injury Severity for Adult Rear-Seat Occupants Injured in Motor Vehicle Crashes. University of Iowa. National Advanced Driving Simulator, 2022. https://rosap.ntl.bts.gov/view/dot/73651.
Reyes, Michelle L. Effect of Seat Belt Use on Injury Severity for Adult Rear-Seat Occupants Injured in Motor Vehicle Crashes. University of Iowa. National Advanced Driving Simulator, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/73651.
This abstract documents and presents a research study/implementation project of structural health monitoring (SHM) systems on the Galana Creek Bridge, supported by the Nevada Department of Transportation under Project Agreement No: P743-18-803. Full-scale SHM systems, in combination with smart monitoring software, were designed and implemented on t
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Park, J. W., Sherman, R. J., Aslam, H., & Kalkan, E. (2022). Galena Creek Bridge Health Monitoring Instrumentation (Report No. 743-18-803). Nevada. Dept. of Transportation. https://rosap.ntl.bts.gov/view/dot/64360
Park, Jee Woong, Ryan J. Sherman, Hamza Aslam, and Erol Kalkan. Galena Creek Bridge Health Monitoring Instrumentation. Report no. 743-18-803. Nevada. Dept. of Transportation, 2022. https://rosap.ntl.bts.gov/view/dot/64360.
Park, Jee Woong, et al. Galena Creek Bridge Health Monitoring Instrumentation. Nevada. Dept. of Transportation, 2022, Report no. 743-18-803, ROSA P. https://rosap.ntl.bts.gov/view/dot/64360.
The goal of this project was to quantify the effects of managed lanes separation type on the safety performance of freeway facilities with managed lanes. The primary objective of the project was to develop quantitative measures that will be useful in comparing separation treatment alternatives for managed lanes. Following a comprehensive review of
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Alluri, P., Geedipally, S., Salum, J., & Kadeha, C. (2022). Developing Safety Performance Function (SPF) and Crash Modification Factor (CMF) for Managed Lanes Separation Treatments. Florida Department of Transportation. https://rosap.ntl.bts.gov/view/dot/70408
Alluri, Priyanka, Srinivas Geedipally, Jimoku Salum, and Cecilia Kadeha. Developing Safety Performance Function (SPF) and Crash Modification Factor (CMF) for Managed Lanes Separation Treatments. Florida Department of Transportation, 2022. https://rosap.ntl.bts.gov/view/dot/70408.
Alluri, Priyanka, et al. Developing Safety Performance Function (SPF) and Crash Modification Factor (CMF) for Managed Lanes Separation Treatments. Florida Department of Transportation, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/70408.
The Iowa DOT is required to develop stormwater pollution prevention plans (SWPPPs) to minimize the risk of downstream pollution emanating from highway construction, as specified in the National Pollutant Discharge Elimination System General Permit No. 2 (NPDES Permit). The Iowa DOT commonly employs temporary sediment control basins to detain sedime
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Schussler, J., Perez, M. A., Donald, W. N., & Fang, X. (2022). Evaluation of Sediment Basin Performance Using Large Scale Testing Techniques (Report No. 20-SPR2-001). Auburn University. Highway Research Center. https://rosap.ntl.bts.gov/view/dot/73659
Schussler, Jaime, Michael A Perez, Wesley N. Donald, and Xing Fang. Evaluation of Sediment Basin Performance Using Large Scale Testing Techniques. Report no. 20-SPR2-001. Auburn University. Highway Research Center, 2022. https://rosap.ntl.bts.gov/view/dot/73659.
Schussler, Jaime, et al. Evaluation of Sediment Basin Performance Using Large Scale Testing Techniques. Auburn University. Highway Research Center, 2022, Report no. 20-SPR2-001, ROSA P. https://rosap.ntl.bts.gov/view/dot/73659.
Florida International University researchers reviewed the Florida Statewide Model as well as trends in travel demand modeling to develop a roadmap for short-term, medium-term, and long-term improvements to FLSWM. Project Activities The researchers reviewed the applicable literature to identify planning applications and issues in statewide travel de
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Majano, V., & Jin, X. (2022). Evaluation and Enhancement of the Florida Statewide Model [Summary] (Report No. BDV29-977-54). Florida Department of Transportation. https://rosap.ntl.bts.gov/view/dot/67944
Majano, Vladimir and Xia Jin. Evaluation and Enhancement of the Florida Statewide Model [Summary]. Report no. BDV29-977-54. Florida Department of Transportation, 2022. https://rosap.ntl.bts.gov/view/dot/67944.
Majano, Vladimir, and Xia Jin Evaluation and Enhancement of the Florida Statewide Model [Summary]. Florida Department of Transportation, 2022, Report no. BDV29-977-54, ROSA P. https://rosap.ntl.bts.gov/view/dot/67944.
For various reasons, including limitations in shipping and operation, as well as unforeseen soil conditions, it often happens that splicing of precast prestressed concrete pile (PPCP) segments has to be performed at the site to achieve longer lengths. Epoxy-bonded dowel splices are commonly used in Florida. The objective of this study was to invest
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Mehrabi, A., Farhangdoust, S., Dolati, S. S. K., Tabiatnejad, D., Lee, S. J., & Garber, D. (2022). Epoxy Dowel Pile Splice Evaluation (Report No. FIU-EDPSE-09). Florida. Department of Transportation. Research Center. https://rosap.ntl.bts.gov/view/dot/66069
Mehrabi, Armin, Saman Farhangdoust, Seyed Saman Khedmatgozar Dolati, Dariya Tabiatnejad, Seung Jae Lee, and David Garber. Epoxy Dowel Pile Splice Evaluation. Report no. FIU-EDPSE-09. Florida. Department of Transportation. Research Center, 2022. https://rosap.ntl.bts.gov/view/dot/66069.
Mehrabi, Armin, et al. Epoxy Dowel Pile Splice Evaluation. Florida. Department of Transportation. Research Center, 2022, Report no. FIU-EDPSE-09, ROSA P. https://rosap.ntl.bts.gov/view/dot/66069.
The purpose of this project was to install and operate two manual infrared (IR) brake screening systems at Kentucky inspection facilities to enhance the quality of Level 1 safety inspections. A radio button in the inspection software allowed enforcement personnel to indicate when the IR equipment was used to select a truck for inspection. This feat
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Crabtree, J. D., Beaven, B., & Walton, J. (2022). Evaluation of Manual Infrared Brake Screening Technologies (Report No. KTC-22-06/RSF19-71-1F). University of Kentucky Transportation Center. https://doi.org/10.13023/ktc.rr.2022.06
Crabtree, Joseph D., Brian Beaven, and Jennifer Walton. Evaluation of Manual Infrared Brake Screening Technologies. Report no. KTC-22-06/RSF19-71-1F. University of Kentucky Transportation Center, 2022. https://doi.org/10.13023/ktc.rr.2022.06.
Crabtree, Joseph D., et al. Evaluation of Manual Infrared Brake Screening Technologies. University of Kentucky Transportation Center, 2022, Report no. KTC-22-06/RSF19-71-1F, ROSA P. https://doi.org/10.13023/ktc.rr.2022.06.
The Tipping Point – What COVID-19 Travel Reduction Tells Us About Effective Congestion Relief uses observed data collected before and during the COVID-19 pandemic in the Twin Cities metropolitan area to answer a question with important implications for highway investment planning and travel demand management: At what level of vehicle miles traveled
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Morris, P., & Parikh, G. (2022). The Tipping Point: What COVID-19 Travel Reduction Tells Us About Effective Congestion Relief (Report No. MN 2022-09). Minnesota. Department of Transportation. Office of Research & Innovation. https://rosap.ntl.bts.gov/view/dot/62715
Morris, Paul and Gordon Parikh. The Tipping Point: What COVID-19 Travel Reduction Tells Us About Effective Congestion Relief. Report no. MN 2022-09. Minnesota. Department of Transportation. Office of Research & Innovation, 2022. https://rosap.ntl.bts.gov/view/dot/62715.
Morris, Paul, and Gordon Parikh The Tipping Point: What COVID-19 Travel Reduction Tells Us About Effective Congestion Relief. Minnesota. Department of Transportation. Office of Research & Innovation, 2022, Report no. MN 2022-09, ROSA P. https://rosap.ntl.bts.gov/view/dot/62715.
Field observations of some concrete structures have raised concerns about Florida Department of Transportation (FDOT) specifications for slag in cement mixes. In this project, researchers addressed the effect of slag composition on temperature rise of setting concrete that can lead to cracking and sulfate content that can reduce durability. To inve
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Armenteros, J., & Zayed, A. (2022). Correlation of Slag Cement Composition with Durability of Portland Cement-Slag Concrete [Summary] (Report No. BDV25-977-63). Florida Department of Transportation. https://rosap.ntl.bts.gov/view/dot/67941
Armenteros, Jose and Abla Zayed. Correlation of Slag Cement Composition with Durability of Portland Cement-Slag Concrete [Summary]. Report no. BDV25-977-63. Florida Department of Transportation, 2022. https://rosap.ntl.bts.gov/view/dot/67941.
Armenteros, Jose, and Abla Zayed Correlation of Slag Cement Composition with Durability of Portland Cement-Slag Concrete [Summary]. Florida Department of Transportation, 2022, Report no. BDV25-977-63, ROSA P. https://rosap.ntl.bts.gov/view/dot/67941.
This project explores the potential re-use of waste materials/by-products as a soil amendment in northeastern Minnesota. The project team identified 23 waste/by-products and collected 15 of but only analyzed 11 because of the possible content of persistent chemicals in some of the materials or the unwillingness of the owner to participate. Peat scr
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Saftner, D., Cai, M., & Whitcomb, A. (2022). Re-Use of Regional Waste in Sustainably Designed Soils (Report No. MN 2022-10). Minnesota. Department of Transportation. Office of Research & Innovation. https://rosap.ntl.bts.gov/view/dot/62726
Saftner, David, Meijun Cai, and Adam Whitcomb. Re-Use of Regional Waste in Sustainably Designed Soils. Report no. MN 2022-10. Minnesota. Department of Transportation. Office of Research & Innovation, 2022. https://rosap.ntl.bts.gov/view/dot/62726.
Saftner, David, et al. Re-Use of Regional Waste in Sustainably Designed Soils. Minnesota. Department of Transportation. Office of Research & Innovation, 2022, Report no. MN 2022-10, ROSA P. https://rosap.ntl.bts.gov/view/dot/62726.
GDOT AASHTOWare is currently used to gather information about the sample data, which includes all the details of the samples, such as the basic sample data, contract information, testing status, and results. GDOT wants a mobile app that allows the user to create a new sample, enter the basic sample information on the mobile phone, and send this to
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Hu, Q., Scantling, C., King, A., LeFlore, J., & Ley, M. (2022). Development of an Apple App for GDOT AASHTOWare Project (Report No. FHWA-GA-22-2023). Georgia. Department of Transportation. Office of Performance-Based Management & Research. https://rosap.ntl.bts.gov/view/dot/63395
Hu, Qinang, Carson Scantling, Aryen King, Jake LeFlore, and MT Ley. Development of an Apple App for GDOT AASHTOWare Project. Report no. FHWA-GA-22-2023. Georgia. Department of Transportation. Office of Performance-Based Management & Research, 2022. https://rosap.ntl.bts.gov/view/dot/63395.
Hu, Qinang, et al. Development of an Apple App for GDOT AASHTOWare Project. Georgia. Department of Transportation. Office of Performance-Based Management & Research, 2022, Report no. FHWA-GA-22-2023, ROSA P. https://rosap.ntl.bts.gov/view/dot/63395.
Each year construction events occur on interstates and highways to repair the road network. To perform these activities a work zone, or a temporary closing of a lane or shoulder, is required. However, work zones can have significant impacts on traffic flow, especially during peak travel times. To mitigate the impact of work zones, the Kansas Depart
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Hazelton, S. A., Newmark, G. L., & Fitzsimmons, E. J. (2022). Development of the KDOT Lane Closure Guide for Wichita, Kansas Metropolitan Area (Report No. K-TRAN: KSU-20-1). Kansas. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/61433
Hazelton, Scott A, Gregory L Newmark, and Eric J. Fitzsimmons. Development of the KDOT Lane Closure Guide for Wichita, Kansas Metropolitan Area. Report no. K-TRAN: KSU-20-1. Kansas. Department of Transportation, 2022. https://rosap.ntl.bts.gov/view/dot/61433.
Hazelton, Scott A, et al. Development of the KDOT Lane Closure Guide for Wichita, Kansas Metropolitan Area. Kansas. Department of Transportation, 2022, Report no. K-TRAN: KSU-20-1, ROSA P. https://rosap.ntl.bts.gov/view/dot/61433.
Each month the Department of Transportation releases an Air Travel Consumer Report that includes information about various service quality elements, including flight delays, mishandled baggage, over sales, and a variety of other types of consumer complaints. In response to an increasing number of inquiries from consumers about domestic airline pric
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United States. Department of Transportation (2022). Domestic Airline Fares Consumer Report: Fourth Quarter 2021 Passenger and Fare Information. United States. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/75809
United States. Department of Transportation. Domestic Airline Fares Consumer Report: Fourth Quarter 2021 Passenger and Fare Information. United States. Department of Transportation, 2022. https://rosap.ntl.bts.gov/view/dot/75809.
United States. Department of Transportation Domestic Airline Fares Consumer Report: Fourth Quarter 2021 Passenger and Fare Information. United States. Department of Transportation, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/75809.
From fender-benders to more serious incidents, crashes are the primary source of nonrecurring congestion on Florida roadways. Vehicles that stop or slow down because of a crash not only block traffic flow, they can also cause secondary crashes, further complicating the crash scene and increasing congestion. Predicting when a secondary crash might o
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Alluri, P. (2022). Strategies to Identify and Mitigate Secondary Crashes Using Real-Time Traffic Data on Florida’s Turnpike System [Summary]. Florida. Department of Transportation. Research Center. https://rosap.ntl.bts.gov/view/dot/61862
Alluri, Priyanka. Strategies to Identify and Mitigate Secondary Crashes Using Real-Time Traffic Data on Florida’s Turnpike System [Summary]. Florida. Department of Transportation. Research Center, 2022. https://rosap.ntl.bts.gov/view/dot/61862.
Alluri, Priyanka Strategies to Identify and Mitigate Secondary Crashes Using Real-Time Traffic Data on Florida’s Turnpike System [Summary]. Florida. Department of Transportation. Research Center, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/61862.
Transit agencies are increasingly using commercially available software platforms to assist in their service planning. These platforms vary in their applications, functionalities, and capabilities, among others. This project includes three focuses: (1) identifies and evaluates existing software platforms used by transit agencies for transit service
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Gan, A., Cevallos, F., Liu, K., & Wang, H. (2022). Evaluation of Software Platforms for Transit Service Planning for Potential Statewide Applications. Florida Department of Transportation. https://rosap.ntl.bts.gov/view/dot/75107
Gan, Albert, Fabian Cevallos, Kaiyu Liu, and Haifeng Wang. Evaluation of Software Platforms for Transit Service Planning for Potential Statewide Applications. Florida Department of Transportation, 2022. https://rosap.ntl.bts.gov/view/dot/75107.
Gan, Albert, et al. Evaluation of Software Platforms for Transit Service Planning for Potential Statewide Applications. Florida Department of Transportation, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/75107.
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