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.
This report presents the development of tub girders for prestressed concrete bridges complying with the Load and Resistance Factor Design (LRFD) method. In addition, the use of 0.7 in. strands is elaborated for the B618-U girders of the Colorado Department of Transportation. In the first part of the report as regards a state-of-the-art review, tech
...
Kim, Y. J. (2022). Development of Tub Girders for Prestressed Concrete Bridges Complying With LRFD (Report No. CDOT-2022-11). Colorado. Dept. of Transportation. Research Branch. https://rosap.ntl.bts.gov/view/dot/65881
Kim, Yail Jimmy. Development of Tub Girders for Prestressed Concrete Bridges Complying With LRFD. Report no. CDOT-2022-11. Colorado. Dept. of Transportation. Research Branch, 2022. https://rosap.ntl.bts.gov/view/dot/65881.
Kim, Yail Jimmy Development of Tub Girders for Prestressed Concrete Bridges Complying With LRFD. Colorado. Dept. of Transportation. Research Branch, 2022, Report no. CDOT-2022-11, ROSA P. https://rosap.ntl.bts.gov/view/dot/65881.
The COVID-19 pandemic has affected all areas of life in the United States. For travel, the changes have been vast, whether for private vehicle use or public transit use. For the intercity bus industry, the pandemic changed operations in meaningful ways that have yet to return to previous levels – whether on the service or the demand side. This stud
...
Sriraj, P. S., Metaxatos, P., Shin, J., Brazeal, C., Farazi, N. P., Grieg, S., Elliott, L., & Manzanarez, J. P. (2022). Statewide Intercity Passenger Transportation in Illinois. University of Illinois at Chicago. Urban Transportation Center. https://rosap.ntl.bts.gov/view/dot/67276
Sriraj, P. S., Paul Metaxatos, Jaeyong Shin, Casey Brazeal, Nahid Parvez Farazi, Scott Grieg, Lewis Elliott, and Jean Paul Manzanarez. Statewide Intercity Passenger Transportation in Illinois. University of Illinois at Chicago. Urban Transportation Center, 2022. https://rosap.ntl.bts.gov/view/dot/67276.
Sriraj, P. S., et al. Statewide Intercity Passenger Transportation in Illinois. University of Illinois at Chicago. Urban Transportation Center, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/67276.
The goal of this project was to demonstrate applications for using AVL/GPS technologies to support winter and all-season maintenance activities. Clear Roads agencies also needed information about the transferability of the technologies to transition the systems between winter and other seasonal maintenance activities. A review of the literature pro
...
Gray, D., Spoor, S., & Lee, M. S. (2022). Expanded Uses of AVL/GPS Systems Maximize Value [Research Brief] (Report No. CR20-04). Minnesota. Department of Transportation. Clear Roads Pooled Fund. https://rosap.ntl.bts.gov/view/dot/67417
Gray, David, Steve Spoor, and Ming Shiun Lee. Expanded Uses of AVL/GPS Systems Maximize Value [Research Brief]. Report no. CR20-04. Minnesota. Department of Transportation. Clear Roads Pooled Fund, 2022. https://rosap.ntl.bts.gov/view/dot/67417.
Gray, David, et al. Expanded Uses of AVL/GPS Systems Maximize Value [Research Brief]. Minnesota. Department of Transportation. Clear Roads Pooled Fund, 2022, Report no. CR20-04, ROSA P. https://rosap.ntl.bts.gov/view/dot/67417.
Since dual tires (DT) have been the trucking industry standard for many decades, existing modeling of the stresses imparted to the pavement through the tires is based on DTs. However, the freight industry has started to use wide base single tires (WBT) due to their economic benefits. This study aimed to investigate the use of WBTs in Michigan (MI)
...
You, Z., Yin, L., Hiller, J. E., & Jin, D. (2022). Quantifying the Impact of Wide Base Tires on Pavement Performance in Michigan (Report No. SPR-1720). Michigan. Dept. of Transportation. Research Administration. https://rosap.ntl.bts.gov/view/dot/66625
You, Zhanping, Lei Yin, Jacob E. Hiller, and Dongzhao Jin. Quantifying the Impact of Wide Base Tires on Pavement Performance in Michigan. Report no. SPR-1720. Michigan. Dept. of Transportation. Research Administration, 2022. https://rosap.ntl.bts.gov/view/dot/66625.
You, Zhanping, et al. Quantifying the Impact of Wide Base Tires on Pavement Performance in Michigan. Michigan. Dept. of Transportation. Research Administration, 2022, Report no. SPR-1720, ROSA P. https://rosap.ntl.bts.gov/view/dot/66625.
This report presents a vision and an implementation plan for region-wide dynamic traffic assignment (DTA) in Colorado. With the proper approach and methods, DTA can be a powerful and cost-effective decision support tool for CDOT’s and MPOs’ transportation planning and engineering responsibilities and activities. In the report, simulation-based DTA
...
Slavin, H., & Morgan, D. (2022). CDOT Dynamic Traffic Assignment (DTA) Implementation Plan (Report No. CDOT-2022-10). Colorado. Dept. of Transportation. Research Branch. https://rosap.ntl.bts.gov/view/dot/65815
Slavin, Howard and Daniel Morgan. CDOT Dynamic Traffic Assignment (DTA) Implementation Plan. Report no. CDOT-2022-10. Colorado. Dept. of Transportation. Research Branch, 2022. https://rosap.ntl.bts.gov/view/dot/65815.
Slavin, Howard, and Daniel Morgan CDOT Dynamic Traffic Assignment (DTA) Implementation Plan. Colorado. Dept. of Transportation. Research Branch, 2022, Report no. CDOT-2022-10, ROSA P. https://rosap.ntl.bts.gov/view/dot/65815.
The Louisiana Department of Transportation and Development (DOTD) established Intelligent Transportation System (ITS) programs over 20 years ago. Before DOTD expands or implements new ITS programs, a study needed to be undertaken to evaluate the performance of the current ITS programs to demonstrate their benefits. The primary objective of this res
...
Thapa, R., Codjoe, J., & Abedi, K. (2022). Develop and Evaluate Performance Measures for Intelligent Transportation Systems (ITS) in Louisiana (Report No. FHWA/LA.22/668). Louisiana Transportation Research Center. https://rosap.ntl.bts.gov/view/dot/65779
Thapa, Raju, Julius Codjoe, and Kwabena Abedi. Develop and Evaluate Performance Measures for Intelligent Transportation Systems (ITS) in Louisiana. Report no. FHWA/LA.22/668. Louisiana Transportation Research Center, 2022. https://rosap.ntl.bts.gov/view/dot/65779.
Thapa, Raju, et al. Develop and Evaluate Performance Measures for Intelligent Transportation Systems (ITS) in Louisiana. Louisiana Transportation Research Center, 2022, Report no. FHWA/LA.22/668, ROSA P. https://rosap.ntl.bts.gov/view/dot/65779.
This study investigated the design and feasibility of noise mitigation strategies for installation in modular expansion joints (MEJs), with a focus on Washington state’s SR 520 bridge. The three main sources of noise from MEJs include resonance of the air within the gaps, resonance of the beams, and resonance of the tires. By filling the gaps in th
...
Reinhall, P. G., Thomas, S., Lipton, J., & Elmadih, W. (2022). Design and Testing of Modular Expansion Joint Noise Mitigation Strategies (Report No. WA-RD 920.1). Washington State Department of Transportation. https://rosap.ntl.bts.gov/view/dot/82164
Reinhall, Per G., Sawyer Thomas, Jeff Lipton, and Waiel Elmadih. Design and Testing of Modular Expansion Joint Noise Mitigation Strategies. Report no. WA-RD 920.1. Washington State Department of Transportation, 2022. https://rosap.ntl.bts.gov/view/dot/82164.
Reinhall, Per G., et al. Design and Testing of Modular Expansion Joint Noise Mitigation Strategies. Washington State Department of Transportation, 2022, Report no. WA-RD 920.1, ROSA P. https://rosap.ntl.bts.gov/view/dot/82164.
Drivers’ noncompliance with the posted speed limit reductions on rural-to-urban freeway transition zones is a recurrent problem in Indiana and other states. Speed-reduction treatments, such as pavement markings and active signing, aim to solve this issue. Optical speed bars, longitudinal speed reduction markings, and speed feedback signs were ident
...
Pineda-Mendez, R. A., Shi, X., Tarko, A. P., & Romero, M. A. (2022). Speed Management on Freeways in Transition Zones between Rural and Urban Conditions (Report No. SPR-4537). Purdue University. Joint Transportation Research Program. https://rosap.ntl.bts.gov/view/dot/67434
Pineda-Mendez, Raul A, Xueqian Shi, Andrew P. Tarko, and Mario A. Romero. Speed Management on Freeways in Transition Zones between Rural and Urban Conditions. Report no. SPR-4537. Purdue University. Joint Transportation Research Program, 2022. https://rosap.ntl.bts.gov/view/dot/67434.
Pineda-Mendez, Raul A, et al. Speed Management on Freeways in Transition Zones between Rural and Urban Conditions. Purdue University. Joint Transportation Research Program, 2022, Report no. SPR-4537, ROSA P. https://rosap.ntl.bts.gov/view/dot/67434.
Transportation planning practices increasingly require knowing the number of occupants per vehicle. Except for manual observations, Virginia has two data sources for obtaining occupancy: the American Community Survey and the National Household Travel Survey, neither of which provides corridor-specific values. This study developed an approach for es
...
Xu, Y., Dougald, L. E., & Miller, J. S. (2022). Development of Guidance for a Vehicle Occupancy Rate Data Collection Program (Report No. FHWA/VTRC 23-R5). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/66073
Xu, Yiqing, Lance E Dougald, and John S Miller. Development of Guidance for a Vehicle Occupancy Rate Data Collection Program. Report no. FHWA/VTRC 23-R5. Virginia Transportation Research Council (VTRC), 2022. https://rosap.ntl.bts.gov/view/dot/66073.
Xu, Yiqing, et al. Development of Guidance for a Vehicle Occupancy Rate Data Collection Program. Virginia Transportation Research Council (VTRC), 2022, Report no. FHWA/VTRC 23-R5, ROSA P. https://rosap.ntl.bts.gov/view/dot/66073.
The goal of this project was to understand pedestrian issues with roundabouts, identify strategies to enhance the pedestrian experience and develop guidance for local agencies creating new roundabouts and evaluating existing ones. Researchers reviewed past studies and strategies to control pedestrian crossings in roundabouts and the most cost-effec
...
Gustafson, J., & Godavarthy, R. (2022). Enhancing Pedestrian Experiences at Roundabouts [Technical Summary]. Minnesota. Department of Transportation. Local Road Research Board. https://rosap.ntl.bts.gov/view/dot/66563
Gustafson, Joe and Ranjit Godavarthy. Enhancing Pedestrian Experiences at Roundabouts [Technical Summary]. Minnesota. Department of Transportation. Local Road Research Board, 2022. https://rosap.ntl.bts.gov/view/dot/66563.
Gustafson, Joe, and Ranjit Godavarthy Enhancing Pedestrian Experiences at Roundabouts [Technical Summary]. Minnesota. Department of Transportation. Local Road Research Board, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/66563.
This study examines how commercial driveway access location and design interact with roadway and interchange characteristics to influence vehicular, bicycle, and pedestrian safety. The final sample for analysis included: a) 192 roadway segments with 9,889 commercial driveways and 10,596 driveway-related crashes; and b) 69 interchanges with 832 comm
...
Williams, K. M., Chen, C., Lin, P. S., Bialkowska-Jelinska, E., & Boyd, T. (2022). Crashes Related to Type and Location of Driveway Access. University of South Florida. Center for Urban Transportation Research. https://rosap.ntl.bts.gov/view/dot/74238
Williams, Kristine M, Cong Chen, Pei-Sung Lin, Elzbieta Bialkowska-Jelinska, and Tia Boyd. Crashes Related to Type and Location of Driveway Access. University of South Florida. Center for Urban Transportation Research, 2022. https://rosap.ntl.bts.gov/view/dot/74238.
Williams, Kristine M, et al. Crashes Related to Type and Location of Driveway Access. University of South Florida. Center for Urban Transportation Research, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/74238.
This research sought to develop specific guidelines for activating RMSs during non-recurring congestion.
Motta, A., & Alluri, P. (2022). Guidelines for Activating Ramp Meters During Off-Peak Hours and Weekends [Summary]. Florida Department of Transportation. https://rosap.ntl.bts.gov/view/dot/75119
Motta, Alejandro and Priyanka Alluri. Guidelines for Activating Ramp Meters During Off-Peak Hours and Weekends [Summary]. Florida Department of Transportation, 2022. https://rosap.ntl.bts.gov/view/dot/75119.
Motta, Alejandro, and Priyanka Alluri Guidelines for Activating Ramp Meters During Off-Peak Hours and Weekends [Summary]. Florida Department of Transportation, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/75119.
United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology
2022-12-01
|
PDF
This U.S. DOT Research, Development, and Technology Strategic Plan for FY2022 – 2026 establishes the Department’s leadership role in supporting, fostering, and safeguarding transportation innovation so that it meets our goals and reflects our values. The RD&T Strategic Plan describes the Department’s research priorities, objectives, and strategies
...
United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology (2022). Research, Development and Technology Strategic Plan 2022–2026. United States. Department of Transportation. https://doi.org/10.21949/1528384
United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology. Research, Development and Technology Strategic Plan 2022–2026. United States. Department of Transportation, 2022. https://doi.org/10.21949/1528384.
United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology Research, Development and Technology Strategic Plan 2022–2026. United States. Department of Transportation, 2022, ROSA P. https://doi.org/10.21949/1528384.
Successful 4-year pavement management plans help provide the traveling public with a safe, comfortable, and reliable roadway network. Each maintenance section plays a role in executing an effective 4-year pavement management plan. To continue to improve the statewide system and get the most value out of fiscally constrained budgets, pavement manage
...
Gurganus, C., Goehl, D., & Estakhri, C. (2022). Success of a 4-Year Pavement Management Plan (Report No. FHWA/TX-23/0-7101-R1). Texas A&M Transportation Institute. https://rosap.ntl.bts.gov/view/dot/65836
Gurganus, Charles, Darlene Goehl, and Cindy Estakhri. Success of a 4-Year Pavement Management Plan. Report no. FHWA/TX-23/0-7101-R1. Texas A&M Transportation Institute, 2022. https://rosap.ntl.bts.gov/view/dot/65836.
Gurganus, Charles, et al. Success of a 4-Year Pavement Management Plan. Texas A&M Transportation Institute, 2022, Report no. FHWA/TX-23/0-7101-R1, ROSA P. https://rosap.ntl.bts.gov/view/dot/65836.
This project sought to develop/adapt and implement a 'cracking test' for asphalt mixture design, to use in conjunction with the current Asphalt Pavement Analyzer rutting test to shift mixture design in Arkansas to a performance, rather than volumetric, basis. In addition, the project attempted to re-evaluate the effectiveness of the current method
...
Hall, K. D., Castillo-Camarena, E., Braham, A. F., Parnell, N., & Richey, A. (2022). Performance-Based Asphalt Mixture Design (PBD) for Arkansas (Report No. TRC1802). Arkansas. Department of Transportation. Transportation Research Committee. https://rosap.ntl.bts.gov/view/dot/68309
Hall, Kevin D., Elvis Castillo-Camarena, Andrew F Braham, Nathan Parnell, and Allyson Richey. Performance-Based Asphalt Mixture Design (PBD) for Arkansas. Report no. TRC1802. Arkansas. Department of Transportation. Transportation Research Committee, 2022. https://rosap.ntl.bts.gov/view/dot/68309.
Hall, Kevin D., et al. Performance-Based Asphalt Mixture Design (PBD) for Arkansas. Arkansas. Department of Transportation. Transportation Research Committee, 2022, Report no. TRC1802, ROSA P. https://rosap.ntl.bts.gov/view/dot/68309.
Summer road maintenance is a critical activity for highway maintenance agencies that involves a wide range of maintenance and construction vehicles that can be active at any given time, which makes vehicle and maintenance asset management challenges. Automated Vehicle Location (AVL) and Global Positioning Systems (GPS) technologies installed in win
...
Lee, M. S., Nelson, D., & Crow, M. (2022). Expanded Use of AVL/GPS Technology: Final Report (Report No. CR 20-04). Minnesota. Department of Transportation. Clear Roads Pooled Fund. https://rosap.ntl.bts.gov/view/dot/67416
Lee, Ming-Shiun, Dan Nelson, and Mallory Crow. Expanded Use of AVL/GPS Technology: Final Report. Report no. CR 20-04. Minnesota. Department of Transportation. Clear Roads Pooled Fund, 2022. https://rosap.ntl.bts.gov/view/dot/67416.
Lee, Ming-Shiun, et al. Expanded Use of AVL/GPS Technology: Final Report. Minnesota. Department of Transportation. Clear Roads Pooled Fund, 2022, Report no. CR 20-04, ROSA P. https://rosap.ntl.bts.gov/view/dot/67416.
The objectives of this research included: • Determine in-situ load-induced and temperature-related pavement responses, investigate pavement failure mechanism and structural performance, and quantify the equivalent axle load fatigue damages on RCC pavements under accelerated pavement testing; • Conduct laboratory beam fatigue tests using in-situ saw
...
Wu, Z., & Mahdi, M. (2022). Application of Mechanistic-Empirical Design Approach into RCC Pavement Thickness Design: Tech Summary [19-1P] (Report No. LTRC Project No. 19-1P). Louisiana Transportation Research Center. https://rosap.ntl.bts.gov/view/dot/66311
Wu, Zhong and Moinul Mahdi. Application of Mechanistic-Empirical Design Approach into RCC Pavement Thickness Design: Tech Summary [19-1P]. Report no. LTRC Project No. 19-1P. Louisiana Transportation Research Center, 2022. https://rosap.ntl.bts.gov/view/dot/66311.
Wu, Zhong, and Moinul Mahdi Application of Mechanistic-Empirical Design Approach into RCC Pavement Thickness Design: Tech Summary [19-1P]. Louisiana Transportation Research Center, 2022, Report no. LTRC Project No. 19-1P, ROSA P. https://rosap.ntl.bts.gov/view/dot/66311.
The Fargo-Moorhead (F-M) Regional Intelligent Transportation Systems (ITS) Architecture Update was prepared under the F-M Metropolitan Council of Governments (Metro COG) leadership. The architecture was first developed in 2005, and since then, it has been updated three times in 2007, 2014, and 2022. The F-M regional architecture (RA) aims to guide
...
Hasan, M. S. (2022). Fargo-Moorhead Regional ITS Architecture Update: Version 4.0. Upper Great Plains Transportation Institute. https://rosap.ntl.bts.gov/view/dot/82952
Hasan, MD Sharijad. Fargo-Moorhead Regional ITS Architecture Update: Version 4.0. Upper Great Plains Transportation Institute, 2022. https://rosap.ntl.bts.gov/view/dot/82952.
Hasan, MD Sharijad Fargo-Moorhead Regional ITS Architecture Update: Version 4.0. Upper Great Plains Transportation Institute, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/82952.
This is a pavement preservation project involving a cold mill, overlay, and added paving fabric. 2015 AADT is documented at 7,530 with a commercial number of 180. The contractor for this project was United Materials. The contract called for installation of an approximate length of 0.4 miles of the designated paving fabric on prepared milled surface
...
DeAustin, C. (2022). Tencate-MIRIFI MPV400 Polypropylene Nonwoven Geotextile (Report No. UPP 5201(24)). Montana. Department of Transportation. https://doi.org/10.21949/1529579
DeAustin, Chad. Tencate-MIRIFI MPV400 Polypropylene Nonwoven Geotextile. Report no. UPP 5201(24). Montana. Department of Transportation, 2022. https://doi.org/10.21949/1529579.
DeAustin, Chad Tencate-MIRIFI MPV400 Polypropylene Nonwoven Geotextile. Montana. Department of Transportation, 2022, Report no. UPP 5201(24), ROSA P. https://doi.org/10.21949/1529579.
The experimental feature used on this project is Sprayroq – SprayWall Polyurethane Applied Culvert Lining used to rehabilitate an existing culvert. The feature is located at the crossing of Nemote Creek on Interstate 90, approximately two miles northwest of the Tarkio Loop Road interchange, and 1.3 miles southeast of the Quartz Flats westbound rest
...
DeAustin, C. (2022). Sprayroq–SprayWall Polyurethane Applied Culvert Lining (Report No. IM 90-1(205)59). Montana. Department of Transportation. https://doi.org/10.21949/1529578
DeAustin, Chad. Sprayroq–SprayWall Polyurethane Applied Culvert Lining. Report no. IM 90-1(205)59. Montana. Department of Transportation, 2022. https://doi.org/10.21949/1529578.
DeAustin, Chad Sprayroq–SprayWall Polyurethane Applied Culvert Lining. Montana. Department of Transportation, 2022, Report no. IM 90-1(205)59, ROSA P. https://doi.org/10.21949/1529578.
Links with this icon indicate that you are leaving a Bureau of Transportation
Statistics (BTS)/National Transportation Library (NTL)
Web-based service.
Thank you for visiting.
You are about to access a non-government link outside of
the U.S. Department of Transportation's National
Transportation Library.
Please note: While links to Web sites outside of DOT are
offered for your convenience, when you exit DOT Web sites,
Federal privacy policy and Section 508 of the Rehabilitation
Act (accessibility requirements) no longer apply. In
addition, DOT does not attest to the accuracy, relevance,
timeliness or completeness of information provided by linked
sites. Linking to a Web site does not constitute an
endorsement by DOT of the sponsors of the site or the
products presented on the site. For more information, please
view DOT's Web site linking policy.
To get back to the page you were previously viewing, click
your Cancel button.