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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.

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$The Effects of the COVID19 Pandemic on Transit in the San Francisco Bay Area Summary$

The Effects of the COVID-19 Pandemic on Transit in the San Francisco Bay Area [Summary]

CITE Title : The Effects of the COVID-19 Pandemic on Transit in the San Francisco Bay Area [Summary] Creator(s) : Lee, Richard W.;Reinke, David B.;Ferrell, Christopher E.;Rivasplata, Charles;Eells, John M;Chen, Luana; Corporate Creator(s) : San Jose State University. College of Business. Mineta Transportation Institute Published Date : 2025-04-01 Report Number : Project 2313 URL : https://rosap.ntl.bts.gov/view/dot/83027 "The Effects of the" (2025). "The Effects of the COVID-19 Pandemic on Transit in the San Francisco Bay Area [Summary]" (2025) "The Effects of the COVID-19 Pandemic on Transit in the San Francisco Bay Area [Summary]" , 2025 Export RIS Citation Information.

[PDF - 259.57 KB]

:

Lee, Richard W. ;

Reinke, David B.
...

2025-04-01

Abstract:

This report presents the findings from our study for the California State Assembly Transportation Committee on the effects of the COVID-19 pandemic on...

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[PDF - 259.57 KB]

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[PDF - 259.57 KB]
An Investigation of the Factors Surrounding Crashes and Near — Crashes of ADAS-Equipped Vehicles

CITE Title : An Investigation of the Factors Surrounding Crashes and Near — Crashes of ADAS-Equipped Vehicles Creator(s) : Reyes, Michelle L.;Roe, Cheryl A; Corporate Creator(s) : University of Iowa. Driving Safety Research Institute Corporate Contributor(s) : Iowa. Department of Transportation;United States. Department of Transportation. Federal Highway Administration; Published Date : 2025-04-01 Report Number : TPF-5(505) URL : https://rosap.ntl.bts.gov/view/dot/82811 "An Investigation of the" (2025). "An Investigation of the Factors Surrounding Crashes and Near — Crashes of ADAS-Equipped Vehicles" (2025) "An Investigation of the Factors Surrounding Crashes and Near — Crashes of ADAS-Equipped Vehicles" , 2025 Export RIS Citation Information.

[PDF - 2.16 MB]

:

Reyes, Michelle L. ;

Roe, Cheryl A

2025-04-01

Abstract:

This project aimed to investigate the impact of advanced driver assistance systems (ADAS) in real-world crashes and near-crashes. The project consider...

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[PDF - 2.16 MB]

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[PDF - 2.16 MB]
Evaluation of BMD Surface Mixtures with Conventional and High RAP Contents Under Laboratory-Scale and Full-Scale Accelerated Testing

CITE Title : Evaluation of BMD Surface Mixtures with Conventional and High RAP Contents Under Laboratory-Scale and Full-Scale Accelerated Testing Creator(s) : Habbouche, Jhony;Tong, Bilin;Flintsch, Gerardo;Diefenderfer, Stacey D;Diefenderfer, Brian K;Perez, Ernesto Urbaez; Corporate Creator(s) : Virginia Transportation Research Council (VTRC) Corporate Contributor(s) : Virginia. Department of Transportation Published Date : 2025-04-01 Report Number : VTRC 25-R16 URL : https://rosap.ntl.bts.gov/view/dot/82866 "Evaluation of BMD Surface" (2025). "Evaluation of BMD Surface Mixtures with Conventional and High RAP Contents Under Laboratory-Scale and Full-Scale Accelerated Testing" (2025) "Evaluation of BMD Surface Mixtures with Conventional and High RAP Contents Under Laboratory-Scale and Full-Scale Accelerated Testing" , 2025 Export RIS Citation Information.

[PDF - 3.42 MB]

:

Habbouche, Jhony ;

Tong, Bilin
...

2025-04-01

Abstract:

Balanced Mix Design (BMD) is an asphalt mixture design method that replaces some aspects of traditional volumetric design with performance testing for...

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[PDF - 3.42 MB]

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[PDF - 3.42 MB]
Experimental and Analytical Evaluation of Residual Capacity of Corrosion-Damaged Prestressed Concrete Bridge Girders

CITE Title : Experimental and Analytical Evaluation of Residual Capacity of Corrosion-Damaged Prestressed Concrete Bridge Girders Creator(s) : Alfailakawi, Ali;Roberts-Wollmann, C L;Hebdon, Matthew H;Koutromanos, Ioannis; Corporate Creator(s) : Virginia Transportation Research Council (VTRC) Corporate Contributor(s) : Virginia. Department of Transportation;United States. Department of Transportation. Federal Highway Administration; Published Date : 2025-04-01 Report Number : FHWA/VTRC 25-R18 URL : https://rosap.ntl.bts.gov/view/dot/82895 "Experimental and Analytical Evaluation" (2025). "Experimental and Analytical Evaluation of Residual Capacity of Corrosion-Damaged Prestressed Concrete Bridge Girders" (2025) "Experimental and Analytical Evaluation of Residual Capacity of Corrosion-Damaged Prestressed Concrete Bridge Girders" , 2025 Export RIS Citation Information.

[PDF - 4.83 MB]

:

Alfailakawi, Ali ;

Roberts-Wollmann, C L
...

2025-04-01

Abstract:

The durability of infrastructure components, such as prestressed concrete bridge beams, can be significantly affected by long-term deterioration assoc...

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[PDF - 4.83 MB]

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[PDF - 4.83 MB]
Development of a Database for Successfully Performing Pavement Sections in Louisiana [Brief]

CITE Title : Development of a Database for Successfully Performing Pavement Sections in Louisiana [Brief] Creator(s) : Liu, Jun Corporate Creator(s) : Louisiana Transportation Research Center Contributor(s) : Rupnow, Tyson;Chen, Qiming; Published Date : 2025-04-01 Report Number : 25-1P URL : https://rosap.ntl.bts.gov/view/dot/82865 "Development of a Database" (2025). "Development of a Database for Successfully Performing Pavement Sections in Louisiana [Brief]" (2025) "Development of a Database for Successfully Performing Pavement Sections in Louisiana [Brief]" , 2025 Export RIS Citation Information.

[PDF - 167.70 KB]

:

Liu, Jun

2025-04-01

Abstract:

Louisiana Transportation Research Center (LTRC) is frequently tasked with conducting forensic investigations of asphalt concrete (AC) pavement section...

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[PDF - 167.70 KB]

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[PDF - 167.70 KB]
I-24 Smart Corridor V2X Roadmap

CITE Title : I-24 Smart Corridor V2X Roadmap Creator(s) : Hill, Terrance;Smith, Matthew;Bonner, Paul;Stockhausen, Jack; Corporate Creator(s) : Kimley-Horn, Inc. Corporate Contributor(s) : Tennessee. Department of Transportation;United States. Department of Transportation. Federal Highway Administration; Published Date : 2025-04-01 Report Number : RES 2023-30 URL : https://rosap.ntl.bts.gov/view/dot/82914 "I-24 Smart Corridor V2X" (2025). "I-24 Smart Corridor V2X Roadmap" (2025) "I-24 Smart Corridor V2X Roadmap" , 2025 Export RIS Citation Information.

[PDF - 7.33 MB]

:

Hill, Terrance ;

Smith, Matthew
...

2025-04-01

Abstract:

The I-24 SMART Corridor takes a comprehensive approach to improving the safety and travel time reliability along the corridor utilizing existing infra...

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[PDF - 7.33 MB]

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[PDF - 7.33 MB]
Field Performance of Fiber-Reinforced Concrete Overlays

CITE Title : Field Performance of Fiber-Reinforced Concrete Overlays Creator(s) : King, Daniel;Yang, Bo;Taylor, Peter;Ceylan, Halil; Corporate Creator(s) : Iowa State University. Institute for Transportation Corporate Contributor(s) : Iowa Highway Research Board;Iowa. Department of Transportation; Published Date : 2025-04-01 Report Number : IHRB Project TR-816 URL : https://rosap.ntl.bts.gov/view/dot/83454 "Field Performance of Fiber-Reinforced" (2025). "Field Performance of Fiber-Reinforced Concrete Overlays" (2025) "Field Performance of Fiber-Reinforced Concrete Overlays" , 2025 Export RIS Citation Information.

[PDF - 6.12 MB]

:

King, Daniel ;

Yang, Bo
...

2025-04-01

Abstract:

An increasing number of concrete overlay projects in Iowa and around the United States have used fiber-reinforced concrete (FRC) mixtures. Fibers prov...

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[PDF - 6.12 MB]

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[PDF - 6.12 MB]
Fuel Cell System Development for Heavy Duty Vehicles [Brief]

CITE Title : Fuel Cell System Development for Heavy Duty Vehicles [Brief] Creator(s) : Yang, Yu;Yeh, Hen-Geul;Aguirre, Bryan; Corporate Creator(s) : San Jose State University. College of Business. Mineta Transportation Institute;California State University, Long Beach; Corporate Contributor(s) : United States. Department of Transportation. University Transportation Centers (UTC) Program;United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology; Published Date : 2025-04-01 Report Number : Project 2441 URL : https://rosap.ntl.bts.gov/view/dot/84047 "Fuel Cell System Development" (2025). "Fuel Cell System Development for Heavy Duty Vehicles [Brief]" (2025) "Fuel Cell System Development for Heavy Duty Vehicles [Brief]" , 2025 Export RIS Citation Information.

[PDF - 1006.33 KB]

:

Yang, Yu ;

Yeh, Hen-Geul
...

2025-04-01

Abstract:

As California advances its ambitious goals for transportation electrification to combat climate change, hydrogen-powered fuel cells are emerging as a ...

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[PDF - 1006.33 KB]

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[PDF - 1006.33 KB]
Chemical Incident Reports: Events Reported to the CSB Under the Accidental Release Reporting Rule [Volume 2]

CITE Title : Chemical Incident Reports: Events Reported to the CSB Under the Accidental Release Reporting Rule [Volume 2] Corporate Creator(s) : U.S. Chemical Safety and Hazard Investigation Board Contributor(s) : Owens, Steve;Johnson, Sylvia E;Sandoval, Catherine J K; Published Date : 2025-03-12 URL : https://rosap.ntl.bts.gov/view/dot/80632 "Chemical Incident Reports: Events" (2025). "Chemical Incident Reports: Events Reported to the CSB Under the Accidental Release Reporting Rule [Volume 2]" (2025) "Chemical Incident Reports: Events Reported to the CSB Under the Accidental Release Reporting Rule [Volume 2]" , 2025 Export RIS Citation Information.

[PDF - 8.83 MB]

:

U.S. Chemical Safety and Hazard Investigation Board

2025-03-12

Abstract:

Volume 2 covers 25 serious chemical incidents in 14 states: Arkansas, Alabama, California, Colorado, Connecticut, Illinois, Louisiana, Mississippi, Ne...

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[PDF - 8.83 MB]

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[PDF - 8.83 MB]
Leveraging Mobility Data Analytics to Inform Mobility Hub Development in Florida [Brief]

CITE Title : Leveraging Mobility Data Analytics to Inform Mobility Hub Development in Florida [Brief] Creator(s) : Yan, Xiang Jacob Corporate Creator(s) : University of Florida (Gainesville) Corporate Contributor(s) : Florida Department of Transportation Published Date : 2025-03-01 URL : https://rosap.ntl.bts.gov/view/dot/80895 "Leveraging Mobility Data Analytics" (2025). "Leveraging Mobility Data Analytics to Inform Mobility Hub Development in Florida [Brief]" (2025) "Leveraging Mobility Data Analytics to Inform Mobility Hub Development in Florida [Brief]" , 2025 Export RIS Citation Information.

[PDF - 159.16 KB]

:

Yan, Xiang Jacob

2025-03-01

Abstract:

Mobility hubs (MHs) can facilitate seamless transitions between various transportation modes, such as transit, ridehailing, and micromobility, enhanci...

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[PDF - 159.16 KB]

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[PDF - 159.16 KB]
Inspection of Flexible Filler Tendons [Summary]

CITE Title : Inspection of Flexible Filler Tendons [Summary] Creator(s) : Brown, Jeff R. Corporate Creator(s) : Embry-Riddle Aeronautical University Corporate Contributor(s) : Florida Department of Transportation Published Date : 2025-03-01 URL : https://rosap.ntl.bts.gov/view/dot/80866 "Inspection of Flexible Filler" (2025). "Inspection of Flexible Filler Tendons [Summary]" (2025) "Inspection of Flexible Filler Tendons [Summary]" , 2025 Export RIS Citation Information.

[PDF - 190.58 KB]

:

Brown, Jeff R.

2025-03-01

Abstract:

This research focused on developing an inspection protocol for post-tensioning (PT) ducts employing flexible filler materials for corrosion protection...

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[PDF - 190.58 KB]

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[PDF - 190.58 KB]
Counting Airport Operations Using Aircraft Transponder Signals and/or Aircraft Automatic Dependent Surveillance-Broadcast (ADS-B) Data [Brief]

CITE Title : Counting Airport Operations Using Aircraft Transponder Signals and/or Aircraft Automatic Dependent Surveillance-Broadcast (ADS-B) Data [Brief] Creator(s) : Yoshigoe, Kenji Corporate Creator(s) : Embry-Riddle Aeronautical University Corporate Contributor(s) : Florida Department of Transportation Published Date : 2025-03-01 URL : https://rosap.ntl.bts.gov/view/dot/80953 "Counting Airport Operations Using" (2025). "Counting Airport Operations Using Aircraft Transponder Signals and/or Aircraft Automatic Dependent Surveillance-Broadcast (ADS-B) Data [Brief]" (2025) "Counting Airport Operations Using Aircraft Transponder Signals and/or Aircraft Automatic Dependent Surveillance-Broadcast (ADS-B) Data [Brief]" , 2025 Export RIS Citation Information.

[PDF - 111.32 KB]

:

Yoshigoe, Kenji

2025-03-01

Abstract:

Accurate estimation of daily and annual aircraft operations at airports is vital for various objectives, including airport planning, funding allocatio...

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[PDF - 111.32 KB]

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[PDF - 111.32 KB]
Modeling and Predicting the Deterioration of Pedestrian Assets [Summary]

CITE Title : Modeling and Predicting the Deterioration of Pedestrian Assets [Summary] Corporate Creator(s) : CTC & Associates LLC Corporate Contributor(s) : Local Road Research Board;Minnesota. Department of Transportation; Published Date : 2025-03-01 Report Number : 2025-19RS URL : https://rosap.ntl.bts.gov/view/dot/81861 "Modeling and Predicting the" (2025). "Modeling and Predicting the Deterioration of Pedestrian Assets [Summary]" (2025) "Modeling and Predicting the Deterioration of Pedestrian Assets [Summary]" , 2025 Export RIS Citation Information.

[PDF - 184.84 KB]

:

CTC & Associates LLC

2025-03-01

Abstract:

Pedestrian assets, particularly sidewalks, are highly susceptible to aging, adverse weather conditions, and suboptimal construction practices, often l...

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[PDF - 184.84 KB]

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[PDF - 184.84 KB]
Best Practices for Maintenance of Control-of-Access Fencing [Summary]

CITE Title : Best Practices for Maintenance of Control-of-Access Fencing [Summary] Creator(s) : Moomen, Milhan;Rahman, Ashifur;Codjoe, Julius A; Corporate Creator(s) : Louisiana Transportation Research Center Published Date : 2025-03-01 Report Number : LTRC Report 706, SIO No. DOTLT1000472 LTRC Project No. 23-8SS URL : https://rosap.ntl.bts.gov/view/dot/82234 "Best Practices for Maintenance" (2025). "Best Practices for Maintenance of Control-of-Access Fencing [Summary]" (2025) "Best Practices for Maintenance of Control-of-Access Fencing [Summary]" , 2025 Export RIS Citation Information.

[PDF - 669.29 KB]

:

Moomen, Milhan ;

Rahman, Ashifur
...

2025-03-01

Abstract:

This report examines the current practices and challenges associated with the maintenance of control-of-access (C-of-A) fencing along highways, with a...

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[PDF - 669.29 KB]

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[PDF - 669.29 KB]
Improved Incident Response through Coordinated, Interoperable Communications [Summary]

CITE Title : Improved Incident Response through Coordinated, Interoperable Communications [Summary] Creator(s) : Moomen, Milhan;Rahman, Ashifur;Codjoe, Julius A; Corporate Creator(s) : Louisiana Transportation Research Center Published Date : 2025-03-01 Report Number : LTRC Report 705, SIO No. DOTLT1000468 LTRC Project No. 23-5SS URL : https://rosap.ntl.bts.gov/view/dot/82233 "Improved Incident Response through" (2025). "Improved Incident Response through Coordinated, Interoperable Communications [Summary]" (2025) "Improved Incident Response through Coordinated, Interoperable Communications [Summary]" , 2025 Export RIS Citation Information.

[PDF - 154.58 KB]

:

Moomen, Milhan ;

Rahman, Ashifur
...

2025-03-01

Abstract:

This study aimed to conduct a needs assessment and performance evaluation of Traffic Incident Management (TIM) in Louisiana and identify areas for TIM...

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[PDF - 154.58 KB]

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[PDF - 154.58 KB]
Improved Incident Response through Coordinated, Interoperable Communications

CITE Title : Improved Incident Response through Coordinated, Interoperable Communications Creator(s) : Moomen, Milhan;Rahman, Ashifur;Khan, Waseem A; Corporate Creator(s) : University of Louisiana at Lafayette. Dept. of Civil Engineering Corporate Contributor(s) : Louisiana Transportation Research Center;Louisiana. Department of Transportation and Development;United States. Department of Transportation. Federal Highway Administration; Published Date : 2025-03-01 Report Number : FHWA/LA.25/705 URL : https://rosap.ntl.bts.gov/view/dot/82245 "Improved Incident Response through" (2025). "Improved Incident Response through Coordinated, Interoperable Communications" (2025) "Improved Incident Response through Coordinated, Interoperable Communications" , 2025 Export RIS Citation Information.

[PDF - 1.98 MB]

:

Moomen, Milhan ;

Rahman, Ashifur
...

2025-03-01

Abstract:

This study aimed to conduct a needs assessment and performance evaluation of Traffic Incident Management (TIM) in Louisiana and identify areas for TIM...

File Type:

[PDF - 1.98 MB]

File Type:

[PDF - 1.98 MB]
Best Practices for Maintenance of Control-of-Access Fencing

CITE Title : Best Practices for Maintenance of Control-of-Access Fencing Creator(s) : Moomen, Milhan;Rahman, Ashifur;Appiah, David; Corporate Creator(s) : Louisiana Transportation Research Center;University of Louisiana at Lafayette. Dept. of Civil Engineering; Corporate Contributor(s) : Louisiana. Department of Transportation and Development;United States. Department of Transportation. Federal Highway Administration; Published Date : 2025-03-01 Report Number : FHWA/LA.25/706 URL : https://rosap.ntl.bts.gov/view/dot/82246 "Best Practices for Maintenance" (2025). "Best Practices for Maintenance of Control-of-Access Fencing" (2025) "Best Practices for Maintenance of Control-of-Access Fencing" , 2025 Export RIS Citation Information.

[PDF - 4.38 MB]

:

Moomen, Milhan ;

Rahman, Ashifur
...

2025-03-01

Abstract:

This report examines the current practices and challenges associated with the maintenance of control-of-access (C-of-A) fencing along highways, with a...

File Type:

[PDF - 4.38 MB]

File Type:

[PDF - 4.38 MB]
Coastal Flood Roadway Vulnerability Assessment

CITE Title : Coastal Flood Roadway Vulnerability Assessment Creator(s) : Bilskie, Matthew V;Kim, S. Sonny;Boland, Alexander; Corporate Creator(s) : University of Georgia. College of Engineering Corporate Contributor(s) : Georgia. Department of Transportation. Office of Performance-Based Management & Research;United States. Department of Transportation. Federal Highway Administration; Published Date : 2025-03-01 Report Number : FHWA-GA-25-2318 URL : https://rosap.ntl.bts.gov/view/dot/82527 "Coastal Flood Roadway Vulnerability" (2025). "Coastal Flood Roadway Vulnerability Assessment" (2025) "Coastal Flood Roadway Vulnerability Assessment" , 2025 Export RIS Citation Information.

[PDF - 57.07 MB]

:

Bilskie, Matthew V ;

Kim, S. Sonny
...

2025-03-01

Abstract:

Coastal flood data and maps were developed using an ADvanced CIRCulation (ADCIRC) hydrodynamic model with resolution as fine as 30 m on the coastline....

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[PDF - 57.07 MB]

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[PDF - 57.07 MB]
Practical Assessment of Non-Destructive Testing (NDT) Techniques for On-Site Application of GDOT Projects

CITE Title : Practical Assessment of Non-Destructive Testing (NDT) Techniques for On-Site Application of GDOT Projects Creator(s) : Taheri, Hossein;Hedjazi, Saman;Spears, Macy; Corporate Creator(s) : Georgia Southern University;Laboratory for Advanced Testing, In-situ Monitoring and Evaluation (LANDTIE); Corporate Contributor(s) : Georgia. Dept. of Transportation. Office of Performance-Based Management and Research;United States. Department of Transportation. Federal Highway Administration; Published Date : 2025-03-01 Report Number : FHWA-GA-25-2105 URL : https://rosap.ntl.bts.gov/view/dot/82427 "Practical Assessment of Non-Destructive" (2025). "Practical Assessment of Non-Destructive Testing (NDT) Techniques for On-Site Application of GDOT Projects" (2025) "Practical Assessment of Non-Destructive Testing (NDT) Techniques for On-Site Application of GDOT Projects" , 2025 Export RIS Citation Information.

[PDF - 7.22 MB]

:

Taheri, Hossein ;

Hedjazi, Saman
...

2025-03-01

Abstract:

Non-destructive testing (NDT) is often conducted to evaluate the performance and condition of assets and infrastructures. Practical considerations mus...

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[PDF - 7.22 MB]

File Type:

[PDF - 7.22 MB]
Complete Streets Means Trucks, too: Integrating Freight Traffic Needs with Active Transportation Planning and Policy [Summary]

CITE Title : Complete Streets Means Trucks, too: Integrating Freight Traffic Needs with Active Transportation Planning and Policy [Summary] Creator(s) : Tolford, Tara Corporate Creator(s) : Louisiana Transportation Research Center Contributor(s) : Rupnow, Tyson;Mitran, Elisabeta; Published Date : 2025-03-01 Report Number : 25-1SS URL : https://rosap.ntl.bts.gov/view/dot/82357 "Complete Streets Means Trucks," (2025). "Complete Streets Means Trucks, too: Integrating Freight Traffic Needs with Active Transportation Planning and Policy [Summary]" (2025) "Complete Streets Means Trucks, too: Integrating Freight Traffic Needs with Active Transportation Planning and Policy [Summary]" , 2025 Export RIS Citation Information.

[PDF - 155.69 KB]

:

Tolford, Tara

2025-03-01

Abstract:

The objective of this planning-level study is to analyze a range of observed and anticipated conflicts among road users; define stakeholder-identified...

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[PDF - 155.69 KB]

File Type:

[PDF - 155.69 KB]