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.
An integrated software/hardware system was developed that can be used to monitor surface deformations on structural components ranging from small-scale material-test coupons, to full-scale bridge members. The system delivered to the Texas Department of transportation is dubbed the Civil Infrastructure Vision (CIV) System and is intended to measure
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This report is a guide to the practice of taxing ride-hailing at the state and local levels in the United States. The information is based on a survey of legislation, news articles, journal articles, revenue data, and interviews. We first review the literature and provide a history of ride-hailing and the practice of ride-hailing. We then profile a
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Lehe, L., Devunuri, S., Rondan, J., & Pandey, A. (2021). Taxation of Ride-Hailing (Report No. FHWA-ICT-21-029). Illinois Center for Transportation. https://doi.org/10.36501/0197-9191/21-040
Lehe, Lewis, Saipraneeth Devunuri, Javier Rondan, and Ayush Pandey. Taxation of Ride-Hailing. Report no. FHWA-ICT-21-029. Illinois Center for Transportation, 2021. https://doi.org/10.36501/0197-9191/21-040.
Lehe, Lewis, et al. Taxation of Ride-Hailing. Illinois Center for Transportation, 2021, Report no. FHWA-ICT-21-029, ROSA P. https://doi.org/10.36501/0197-9191/21-040.
Though national trends regarding culture and drinking are well documented, behaviors specific to Louisiana’s diverse cultural makeup are not. This analysis addresses this need. A review of the research literature identified cultural groups and how those different groups approach age of first consumption, consistent alcohol usage, and binge drinking
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Shipp, E., Das, S., Smith, S., Wu, L., & Sun, X. (2021). Louisiana’s Alcohol-Impaired Driving Problem: An Analysis of Crash and Cultural Factors (Report No. FHWA/LA.17/655). Louisiana Transportation Research Center. https://rosap.ntl.bts.gov/view/dot/61208
Shipp, Eva, Subasish Das, Scott Smith, Lingtao Wu, and Xiaoduan Sun. Louisiana’s Alcohol-Impaired Driving Problem: An Analysis of Crash and Cultural Factors. Report no. FHWA/LA.17/655. Louisiana Transportation Research Center, 2021. https://rosap.ntl.bts.gov/view/dot/61208.
Shipp, Eva, et al. Louisiana’s Alcohol-Impaired Driving Problem: An Analysis of Crash and Cultural Factors. Louisiana Transportation Research Center, 2021, Report no. FHWA/LA.17/655, ROSA P. https://rosap.ntl.bts.gov/view/dot/61208.
The research herein, performed under joint collaboration between researchers at Texas Tech University, the University of Texas at Arlington, and the U.S. Geological Survey (USGS) Oklahoma-Texas Water Science Center, aimed to update the Texas generalized skew map and its mean-square error for the Texas Department of Transportation (TxDOT) Hydraulic
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Cleveland, T. G., Fang, N. Z., Asquith, W. H., Yesildirek, M. V., McDowell, J. S., Zhang, J., Landers, R. N., & Otto, L. D. (2021). Generalized Skew Update and Regional Study of Distribution Shape for Texas Flood Frequency Analyses (Report No. FHWA/TX-21/0-6977-1, 0-6977-1). Texas Tech University. Center for Multidisciplinary Research in Transportation. https://rosap.ntl.bts.gov/view/dot/60662
Cleveland, Theodore G., Nick Z Fang, William H. Asquith, Monica V Yesildirek, Jeremy S McDowell, Jiaqi Zhang, Raven N Landers, and Lindsay D Otto. Generalized Skew Update and Regional Study of Distribution Shape for Texas Flood Frequency Analyses. Report no. FHWA/TX-21/0-6977-1, 0-6977-1. Texas Tech University. Center for Multidisciplinary Research in Transportation, 2021. https://rosap.ntl.bts.gov/view/dot/60662.
Cleveland, Theodore G., et al. Generalized Skew Update and Regional Study of Distribution Shape for Texas Flood Frequency Analyses. Texas Tech University. Center for Multidisciplinary Research in Transportation, 2021, Report no. FHWA/TX-21/0-6977-1, 0-6977-1, ROSA P. https://rosap.ntl.bts.gov/view/dot/60662.
Over the past decade, the advancement of transportation technologies has been rapid. The introduction of technologies, including mobile robotics, Advanced Traffic Management Systems, ITS, and big data analytics, has the potential to transform the way transportation agencies conduct their operations. Many state departments of transportation (DOTs) a
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Fard, Z. B., Dennis, E. P., Fiorelli, T., Gregory, S., Torrence, D., Bayer, D., Wein, M., Dziczek, K., Swiecki, B., & Ureste, M. E. (2021). Recruit and Maintain/Upgrade a High-Tech Workforce for Emerging Technologies (Report No. SPR-1699). Michigan. Dept. of Transportation. Research Administration. https://rosap.ntl.bts.gov/view/dot/62509
Fard, Zahra Bahrani, Eric Paul Dennis, Terni Fiorelli, Sarah Gregory, Deja Torrence, Deborah Bayer, Michelle Wein, Kristin Dziczek, Bernard Swiecki, and Michele Economou Ureste. Recruit and Maintain/Upgrade a High-Tech Workforce for Emerging Technologies. Report no. SPR-1699. Michigan. Dept. of Transportation. Research Administration, 2021. https://rosap.ntl.bts.gov/view/dot/62509.
Fard, Zahra Bahrani, et al. Recruit and Maintain/Upgrade a High-Tech Workforce for Emerging Technologies. Michigan. Dept. of Transportation. Research Administration, 2021, Report no. SPR-1699, ROSA P. https://rosap.ntl.bts.gov/view/dot/62509.
Dockless bikeshare systems show potential for replacing traditional dock-based systems, primarily by offering greater flexibility for bike returns. However, many cities in the US currently regulate the maximum number of bikes a dockless system can deploy due to bicycle management issues. Despite inventory management challenges, dockless systems off
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Jaller, M., Niemeier, D., Qian, X., & Hu, M. (2021). Dock-Based and Dockless Bikesharing Systems: Analysis of Equitable Access for Disadvantaged Communities (Report No. NCST-UCD-RR-21-24). National Center for Sustainable Transportation (NCST) (UTC). https://doi.org/10.7922/G2RN365J
Jaller, Miguel, Debbie Niemeier, Xiaodong Qian, and Miao Hu. Dock-Based and Dockless Bikesharing Systems: Analysis of Equitable Access for Disadvantaged Communities. Report no. NCST-UCD-RR-21-24. National Center for Sustainable Transportation (NCST) (UTC), 2021. https://doi.org/10.7922/G2RN365J.
Jaller, Miguel, et al. Dock-Based and Dockless Bikesharing Systems: Analysis of Equitable Access for Disadvantaged Communities. National Center for Sustainable Transportation (NCST) (UTC), 2021, Report no. NCST-UCD-RR-21-24, ROSA P. https://doi.org/10.7922/G2RN365J.
The goal of this project is to enhance regional travel demand modeling capability of MDOT SHA by developing data-driven mode choice models that incorporates bicycling and walking among the modes so that impacts of Complete Street projects and plans can be forecasted in the future. To accomplish the project goals and objectives, a Stated Choice Expe
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Erdogan, S., Cirillo, C., Nasri, A., Bas, J., Al-Khasawne, M. B. M., & Nejad, M. M. (2021). Evaluating the Effects of Complete Streets on Mode Choice, A Case Study in the Baltimore-Washington Area (Report No. MD-21-SHA/UM/5-25). Maryland. State Highway Administration. Office of Policy & Research. https://rosap.ntl.bts.gov/view/dot/60932
Erdogan, Sevgi, Cinzia Cirillo, Arefeh Nasri, Javier Bas, Mohammad B. M. Al-Khasawne, and Mohammad M Nejad. Evaluating the Effects of Complete Streets on Mode Choice, A Case Study in the Baltimore-Washington Area. Report no. MD-21-SHA/UM/5-25. Maryland. State Highway Administration. Office of Policy & Research, 2021. https://rosap.ntl.bts.gov/view/dot/60932.
Erdogan, Sevgi, et al. Evaluating the Effects of Complete Streets on Mode Choice, A Case Study in the Baltimore-Washington Area. Maryland. State Highway Administration. Office of Policy & Research, 2021, Report no. MD-21-SHA/UM/5-25, ROSA P. https://rosap.ntl.bts.gov/view/dot/60932.
Very fine coal combustion products (CCPs) are a by-product of burning coal when generating electricity. Fly ash has generally been used in portland cement concrete. However, some CCPs have been used in hot-mix asphalt (HMA) as mineral fillers. Due to current changes of Environmental Protection Agency (EPA) emission requirements, large volumes of fl
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Gao, Y., & Hossain, M. (2021). Evaluation of Coal Combustion Products in Hot-Mix Asphalt Mixture (Report No. KS-21-03). Kansas Department of Transportation. Bureau of Research. https://rosap.ntl.bts.gov/view/dot/60618
Gao, Ya and Mustaque Hossain. Evaluation of Coal Combustion Products in Hot-Mix Asphalt Mixture. Report no. KS-21-03. Kansas Department of Transportation. Bureau of Research, 2021. https://rosap.ntl.bts.gov/view/dot/60618.
Gao, Ya, and Mustaque Hossain Evaluation of Coal Combustion Products in Hot-Mix Asphalt Mixture. Kansas Department of Transportation. Bureau of Research, 2021, Report no. KS-21-03, ROSA P. https://rosap.ntl.bts.gov/view/dot/60618.
Superloads (SLs) are a class of vehicles that typically exceed both gross vehicle weight limits and axle load limits, in addition to occupying two or more lanes of traffic. In PA, SLs require special permits but their effect on pavement distresses have not been evaluated. In this study, lab and computational analyses were combined to quantify the e
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Vandenbossche, J. M., Donnelly, C., Buettner, N., Sen, S., & Brody, Z. (2021). Effect of Superloads on Pavement Life (WO19) (Report No. FHWA-PA-2022-001-PITT WO 019). Pennsylvania. Department of Transportation. Bureau of Planning and Research. https://rosap.ntl.bts.gov/view/dot/68830
Vandenbossche, Julie M, C.A. Donnelly, N. Buettner, S. Sen, and Z Brody. Effect of Superloads on Pavement Life (WO19). Report no. FHWA-PA-2022-001-PITT WO 019. Pennsylvania. Department of Transportation. Bureau of Planning and Research, 2021. https://rosap.ntl.bts.gov/view/dot/68830.
Vandenbossche, Julie M, et al. Effect of Superloads on Pavement Life (WO19). Pennsylvania. Department of Transportation. Bureau of Planning and Research, 2021, Report no. FHWA-PA-2022-001-PITT WO 019, ROSA P. https://rosap.ntl.bts.gov/view/dot/68830.
This project focused on developing and evaluating methods for estimating demand volume for oversaturated corridors. Measuring demand directly with vehicle sensors is not possible when demand is larger than capacity for an extended period, as the queue grows beyond the sensor, and the flow measurements at a given point cannot exceed the capacity of
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Cetin, M., Yang, H., Xie, K., Kattepogu, G., & Salahshour, B. (2021). What Is an Effective Way to Measure Arterial Demand When It Exceeds Capacity? (Report No. FHWA/VTRC 22-R19). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/60865
Cetin, Mecit, Hong Yang, Kun Xie, Giridhar Kattepogu, and Behrouz Salahshour. What Is an Effective Way to Measure Arterial Demand When It Exceeds Capacity?. Report no. FHWA/VTRC 22-R19. Virginia Transportation Research Council (VTRC), 2021. https://rosap.ntl.bts.gov/view/dot/60865.
Cetin, Mecit, et al. What Is an Effective Way to Measure Arterial Demand When It Exceeds Capacity?. Virginia Transportation Research Council (VTRC), 2021, Report no. FHWA/VTRC 22-R19, ROSA P. https://rosap.ntl.bts.gov/view/dot/60865.
Pavement performance is a complex issue which depends on many contributing factors. Examining the performance of real-life pavements across the state determines what the actual service lives are for the pavements. For the purposes of this study, only selected LTPP projects were examined, along with a database containing all the historic repair proj
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Shah, A., Olek, J., & McDaniel, R. S. (2021). Real Life Experiences with Major Pavement Types (Report No. FHWA/IN/JTRP-2022/05). Purdue University. Joint Transportation Research Program. https://doi.org/10.5703/1288284317371
Shah, Ayesha, Jan Olek, and Rebecca S. McDaniel. Real Life Experiences with Major Pavement Types. Report no. FHWA/IN/JTRP-2022/05. Purdue University. Joint Transportation Research Program, 2021. https://doi.org/10.5703/1288284317371.
Shah, Ayesha, et al. Real Life Experiences with Major Pavement Types. Purdue University. Joint Transportation Research Program, 2021, Report no. FHWA/IN/JTRP-2022/05, ROSA P. https://doi.org/10.5703/1288284317371.
The primary goal of this research project was to assist the Ohio Department of Transportation (ODOT) in identifying fine or coarse aggregates that might be subject to supply shortfalls in the future, estimate the financial impact to ODOT of these shortfalls, and recommend appropriate policy options to pursue in the event of shortfalls in aggregate
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Abbas, A. R., Mahmoud, K. M., Quasem, T., Eriksen, M., Nazzal, M., & Beach, K. (2021). Analysis of Ohio’s Fine and Coarse Aggregate Reserve Balances (Report No. FHWA/OH-2021-37). Ohio. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/73236
Abbas, Ala R., Khaled M. Mahmoud, Tanvir Quasem, Michael Eriksen, Munir Nazzal, and Kirk Beach. Analysis of Ohio’s Fine and Coarse Aggregate Reserve Balances. Report no. FHWA/OH-2021-37. Ohio. Department of Transportation, 2021. https://rosap.ntl.bts.gov/view/dot/73236.
Abbas, Ala R., et al. Analysis of Ohio’s Fine and Coarse Aggregate Reserve Balances. Ohio. Department of Transportation, 2021, Report no. FHWA/OH-2021-37, ROSA P. https://rosap.ntl.bts.gov/view/dot/73236.
Asphalt pavement density at and near longitudinal construction joints is often significantly lower than the density in the mainline areas of the pavement, which can manifest in premature deterioration of the joint area relative to the mainline. The objective of this project is to synthesize the most probable solutions to deliver better longitudinal
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Bahia, H., Swiertz, D., Low, P., & Zhang, Y. (2021). Material Specifications for Longitudinal Joint Construction, Remediation and Maintenance (Report No. 0092-21-05). Wisconsin Highway Research Program. https://rosap.ntl.bts.gov/view/dot/62613
Bahia, Hussain, Dan Swiertz, Ping Low, and Yuan Zhang. Material Specifications for Longitudinal Joint Construction, Remediation and Maintenance. Report no. 0092-21-05. Wisconsin Highway Research Program, 2021. https://rosap.ntl.bts.gov/view/dot/62613.
Bahia, Hussain, et al. Material Specifications for Longitudinal Joint Construction, Remediation and Maintenance. Wisconsin Highway Research Program, 2021, Report no. 0092-21-05, ROSA P. https://rosap.ntl.bts.gov/view/dot/62613.
Previous studies indicated that two factors, traffic loading parameter and pre-treatment pavement condition, can have significantly impact on pavement performance and should be considered when developing pavement performance models. This study was conducted to use these two factors to develop new pavement performance models for the NCDOT Pavement M
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Chen, D., & Nicholas II, T. (2021). Development of Pavement Performance Models Using New Breakpoints and Pretreatment Conditions (Report No. FHWA/NC/2020-14). North Carolina. Department of Transportation. Research and Analysis Group. https://rosap.ntl.bts.gov/view/dot/62953
Chen, Don and Thomas Nicholas II. Development of Pavement Performance Models Using New Breakpoints and Pretreatment Conditions. Report no. FHWA/NC/2020-14. North Carolina. Department of Transportation. Research and Analysis Group, 2021. https://rosap.ntl.bts.gov/view/dot/62953.
Chen, Don, and Thomas Nicholas II Development of Pavement Performance Models Using New Breakpoints and Pretreatment Conditions. North Carolina. Department of Transportation. Research and Analysis Group, 2021, Report no. FHWA/NC/2020-14, ROSA P. https://rosap.ntl.bts.gov/view/dot/62953.
The demand for concrete, which is conventionally composed of granular rocks (aggregates), water, and Portland cement (as well as other additives depending on desired performance) continues to grow. The manufacturing of Portland cement leads to notable greenhouse gas (GHG) emissions, which has driven interest in alternative concrete mixture designs,
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Cunningham, P. R., & Miller, S. A. (2021). Benchmarking GHG Emissions From California Concrete and Readily Implementable Mitigation Methods (Report No. NCST-UCD-RR-21-28). National Center for Sustainable Transportation (NCST) (UTC). https://doi.org/10.7922/G24T6GND
Cunningham, Patrick R and Sabbie A Miller. Benchmarking GHG Emissions From California Concrete and Readily Implementable Mitigation Methods. Report no. NCST-UCD-RR-21-28. National Center for Sustainable Transportation (NCST) (UTC), 2021. https://doi.org/10.7922/G24T6GND.
Cunningham, Patrick R, and Sabbie A Miller Benchmarking GHG Emissions From California Concrete and Readily Implementable Mitigation Methods. National Center for Sustainable Transportation (NCST) (UTC), 2021, Report no. NCST-UCD-RR-21-28, ROSA P. https://doi.org/10.7922/G24T6GND.
As agencies consider purchasing new types of snowplow equipment, it is important that they understand the trade-offs between equipment costs and potential gains in efficiency. Both tow plows and plows with wings represent a greater up-front investment but are designed to allow a plow operator to clear more snow in a single pass than a standard fron
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Bennett, D., & Lasky, T. (2021). Measuring the Efficiencies of Tow Plows and Wing Plows (Report No. CR 19-03). Minnesota. Department of Transportation. Clear Roads Pooled Fund. https://rosap.ntl.bts.gov/view/dot/63269
Bennett, Duane and Ty Lasky. Measuring the Efficiencies of Tow Plows and Wing Plows. Report no. CR 19-03. Minnesota. Department of Transportation. Clear Roads Pooled Fund, 2021. https://rosap.ntl.bts.gov/view/dot/63269.
Bennett, Duane, and Ty Lasky Measuring the Efficiencies of Tow Plows and Wing Plows. Minnesota. Department of Transportation. Clear Roads Pooled Fund, 2021, Report no. CR 19-03, ROSA P. https://rosap.ntl.bts.gov/view/dot/63269.
The Bismarck-Mandan Regional Intelligent Transportation Systems (ITS) Architecture was prepared under the Bismarck-Mandan Metropolitan Planning Organization (Bis-Man MPO) leadership. The architecture was first developed in 2005, and since then, it has been updated three times in 2008, 2013, and 2021. The Bis-Man regional architecture (RA) aims to g
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Upper Great Plains Transportation Institute, & North Dakota State University. Advanced Traffic Analysis Center (2021). Bismarck-Mandan Regional ITS Architecture Update (Version 4.0). North Dakota. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/80912
Upper Great Plains Transportation Institute and North Dakota State University. Advanced Traffic Analysis Center. Bismarck-Mandan Regional ITS Architecture Update (Version 4.0). North Dakota. Department of Transportation, 2021. https://rosap.ntl.bts.gov/view/dot/80912.
Upper Great Plains Transportation Institute, et al. Bismarck-Mandan Regional ITS Architecture Update (Version 4.0). North Dakota. Department of Transportation, 2021, ROSA P. https://rosap.ntl.bts.gov/view/dot/80912.
Two commercial superabsorbent polymer (SAP) formulations were used to internally cure cement pastes, mortars, and concretes with a range of water-to-cement ratios (w/c 0.35–0.52). The following properties were determined as a function of cement chemistry and type, use of chemical admixtures, use of slag, and batching parameters: SAP absorption capa
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Adams, C. J., Bose, B., Mann, E., Erk, K. A., Behnood, A., Castillo, A., Rodriguez, F. B., Wang, Y., & Olek, J. (2021). Superabsorbent Polymers for Internally Cured Concrete (Report No. FHWA/IN/JTRP-2022/04). Purdue University. Joint Transportation Research Program. https://doi.org/10.5703/1288284317366
Adams, Caitlin J, Baishakhi Bose, Ethan Mann, Kendra A Erk, Ali Behnood, Alberto Castillo, Fabian B Rodriguez, Yu Wang, and Jan Olek. Superabsorbent Polymers for Internally Cured Concrete. Report no. FHWA/IN/JTRP-2022/04. Purdue University. Joint Transportation Research Program, 2021. https://doi.org/10.5703/1288284317366.
Adams, Caitlin J, et al. Superabsorbent Polymers for Internally Cured Concrete. Purdue University. Joint Transportation Research Program, 2021, Report no. FHWA/IN/JTRP-2022/04, ROSA P. https://doi.org/10.5703/1288284317366.
The objective of this study was to develop accurate prestressed girder camber calculations and validate them with available data. The project team conducted a thorough literature review and analyzed recent girder camber research efforts in other states. The project collected existing data on 189 Missouri bridge girders. The project also collected f
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Orton, S., Gopalaratnam, V. S., Elawardi, A., Holt, J., Lopez, M., & Murphy, T. (2021). Enhanced Camber Calculations for Prestressed Concrete Bridge Girders (Report No. cmr 21-011, TR202101). Missouri. Department of Transportation. Construction and Materials Division. https://rosap.ntl.bts.gov/view/dot/60857
Orton, Sarah, Vellore S. Gopalaratnam, Ali Elawardi, John Holt, Maria Lopez, and Thomas Murphy. Enhanced Camber Calculations for Prestressed Concrete Bridge Girders. Report no. cmr 21-011, TR202101. Missouri. Department of Transportation. Construction and Materials Division, 2021. https://rosap.ntl.bts.gov/view/dot/60857.
Orton, Sarah, et al. Enhanced Camber Calculations for Prestressed Concrete Bridge Girders. Missouri. Department of Transportation. Construction and Materials Division, 2021, Report no. cmr 21-011, TR202101, ROSA P. https://rosap.ntl.bts.gov/view/dot/60857.
This report represents a continuation of analysis concerned with the patterns and methods of distributing grain from North Dakota. The collection and compilation of this type of data began in 1956-57. The objectives of this report, like prior reports, are to provide the necessary database for identifying trends in the distribution of grain and oils
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Vachal, K., & Andersen, J. (2021). North Dakota Grain and Oilseed Transportation Statistics 2020–21 (Report No. DP-314). Upper Great Plains Transportation Institute. https://rosap.ntl.bts.gov/view/dot/60787
Vachal, Kimberly and Jaclyn Andersen. North Dakota Grain and Oilseed Transportation Statistics 2020–21. Report no. DP-314. Upper Great Plains Transportation Institute, 2021. https://rosap.ntl.bts.gov/view/dot/60787.
Vachal, Kimberly, and Jaclyn Andersen North Dakota Grain and Oilseed Transportation Statistics 2020–21. Upper Great Plains Transportation Institute, 2021, Report no. DP-314, ROSA P. https://rosap.ntl.bts.gov/view/dot/60787.
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