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Showing 361 - 380 of 529 results

Resilient Moduli of Raw and Stabilized Aggregate Bases and Evaluation of Layer Coefficients for AASHTO Flexible Pavement Design: Volume 1

Zaman, Musharraf M. ;

Laguros, Joakim G.

1998-08-01 | PDF

A comprehensive study involving laboratory testing of resilient moduli (MR) of aggregate materials, determination of layer coefficients, and their application in AASHTO flexible pavement design was conducted.

11/24/2025

Title : Resilient Moduli of Raw and Stabilized Aggregate Bases and Evaluation of Layer Coefficients for AASHTO Flexible Pavement Design: Volume 1 Creator(s) : Zaman, Musharraf M.;Laguros, Joakim G.;Tian, Ping;Zhu, Jianhua;Pandey, Kundan K.; Corporate Creator(s) : University of Oklahoma Corporate Contributor(s) : Oklahoma. Department of Transportation;United States. Department of Transportation. Federal Highway Administration; Published Date : 1998-08-01 Report Number : FHWA/OK 9.8(05);ORA 125-4262; URL : https://rosap.ntl.bts.gov/view/dot/87779 Zaman, Musharraf M. et al. (1998). Resilient Moduli of Raw and Stabilized Aggregate Bases and Evaluation of Layer Coefficients for AASHTO Flexible Pavement Design: Volume 1. Zaman, Musharraf M. et al. "Resilient Moduli of Raw and Stabilized Aggregate Bases and Evaluation of Layer Coefficients for AASHTO Flexible Pavement Design: Volume 1" (1998) Zaman, Musharraf M. et al. "Resilient Moduli of Raw and Stabilized Aggregate Bases and Evaluation of Layer Coefficients for AASHTO Flexible Pavement Design: Volume 1" , 1998 Export RIS Citation Information. TY - Tech Report AU - Zaman, Musharraf M. AU - Laguros, Joakim G. AU - Tian, Ping AU - Zhu, Jianhua AU - Pandey, Kundan K. A2 - University of Oklahoma A3 - Oklahoma. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - A comprehensive study involving laboratory testing of resilient moduli (MR) of aggregate materials, determination of layer coefficients, and their application in AASHTO flexible pavement design was conducted. AN - dot:87779 ET - Final Report (Oct. 1994- Aug. 1998) KW - Aggregates KW - Asphalt pavements KW - Base course (Pavements) KW - Cement kilns KW - Flexible pavements KW - Fly ash KW - Moisture content KW - Resilience (Materials) KW - Soil stabilization LA - English PB - Oklahoma. Department of Transportation PY - 1998-08-01 SN - FHWA/OK 9.8(05) TI - Resilient Moduli of Raw and Stabilized Aggregate Bases and Evaluation of Layer Coefficients for AASHTO Flexible Pavement Design: Volume 1 M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/87779 ER -
Experimental Products Evaluation Program Annual Report: 1997

Williams, Gary

1998-04-01 | PDF

This publication consists of a listing of experimental products that are being or have been evaluated by the Oklahoma Department of Transportation (ODOT) or other transportation agencies.

11/24/2025

Title : Experimental Products Evaluation Program Annual Report: 1997 Creator(s) : Williams, Gary Corporate Creator(s) : Oklahoma. Department of Transportation Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 1998-04-01 Report Number : FHWA/OK 98(01) URL : https://rosap.ntl.bts.gov/view/dot/87778 Williams, Gary (1998). Experimental Products Evaluation Program Annual Report: 1997. Williams, Gary "Experimental Products Evaluation Program Annual Report: 1997" (1998) Williams, Gary "Experimental Products Evaluation Program Annual Report: 1997" , 1998 Export RIS Citation Information. TY - Tech Report AU - Williams, Gary A2 - Oklahoma. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - This publication consists of a listing of experimental products that are being or have been evaluated by the Oklahoma Department of Transportation (ODOT) or other transportation agencies. AN - dot:87778 ET - Annual Report: January, 1997 - December, 1997 KW - Bitumen KW - Cement KW - Highway engineering KW - Highway maintenance KW - Joint sealers KW - Maintenance KW - Annual reports KW - Paint KW - Pavements KW - Products KW - Evaluation KW - State highway departments KW - Waterproofing LA - English PB - Oklahoma. Department of Transportation PY - 1998-04-01 SN - FHWA/OK 98(01) TI - Experimental Products Evaluation Program Annual Report: 1997 M3 - Tech Report N1 - United States N1 - 2700 UR - https://rosap.ntl.bts.gov/view/dot/87778 ER -
Strengthened Earth Wall

Evans, Gary W. ;

Cowen, Jeff

1997-11-01 | PDF

The Oklahoma Department of Transportation (ODOT) recently completed a project that included a Strengthened Earth Wall. The Mechanically Stabilized Earth (MSE) wall was constructed by Muskogee Bridge Company as a part of project IM-NHIY-44-2(349)231 on I-4.

11/24/2025

Title : Strengthened Earth Wall Creator(s) : Evans, Gary W.;Cowen, Jeff;Hayes, Curtis J.;Sawyer, Steven; Corporate Creator(s) : Oklahoma. Department of Transportation. Research, Development, and Technology Transfer Published Date : 1997-11-01 Report Number : FHWA/OK 97(09) URL : https://rosap.ntl.bts.gov/view/dot/87777 Evans, Gary W. et al. (1997). Strengthened Earth Wall. Evans, Gary W. et al. "Strengthened Earth Wall" (1997) Evans, Gary W. et al. "Strengthened Earth Wall" , 1997 Export RIS Citation Information. TY - Tech Report AU - Evans, Gary W. AU - Cowen, Jeff AU - Hayes, Curtis J. AU - Sawyer, Steven A2 - Oklahoma. Department of Transportation. Research, Development, and Technology Transfer AB - The Oklahoma Department of Transportation (ODOT) recently completed a project that included a Strengthened Earth Wall. The Mechanically Stabilized Earth (MSE) wall was constructed by Muskogee Bridge Company as a part of project IM-NHIY-44-2(349)231 on I-4. AN - dot:87777 ET - Final Report: March 1996 to May 1997 KW - Backfill soils KW - Concrete structures KW - Highway engineering KW - Precast concrete KW - Retaining walls KW - Slopes KW - Soil stabilization KW - Wire KW - Mechanistic-empirical pavement design KW - Wire cloth LA - English PB - Oklahoma. Department of Transportation PY - 1997-11-01 SN - FHWA/OK 97(09) TI - Strengthened Earth Wall M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/87777 ER -
Experimental Products Evaluation Program Annual Report: 2002

Williams, Gary

2002-02-01 | PDF

This publication consists of a listing of experimental products that are being or have been evaluated by The Oklahoma Department of Transportation (ODOT), or other transportation agencies.

11/24/2025

Title : Experimental Products Evaluation Program Annual Report: 2002 Creator(s) : Williams, Gary Corporate Creator(s) : Oklahoma. Department of Transportation Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 2002-02-01 Report Number : FHWA/OK 02(01) URL : https://rosap.ntl.bts.gov/view/dot/87776 Williams, Gary (2002). Experimental Products Evaluation Program Annual Report: 2002. Williams, Gary "Experimental Products Evaluation Program Annual Report: 2002" (2002) Williams, Gary "Experimental Products Evaluation Program Annual Report: 2002" , 2002 Export RIS Citation Information. TY - Tech Report AU - Williams, Gary A2 - Oklahoma. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - This publication consists of a listing of experimental products that are being or have been evaluated by The Oklahoma Department of Transportation (ODOT), or other transportation agencies. AN - dot:87776 ET - Annual Report Jan. - De?. 2001 KW - Bitumen KW - Cement KW - Experiments KW - Highway engineering KW - Paint KW - Sealing compounds KW - Evaluation KW - State departments of transportation KW - Product evaluation LA - English PB - Oklahoma. Department of Transportation PY - 2002-02-01 SN - FHWA/OK 02(01) TI - Experimental Products Evaluation Program Annual Report: 2002 M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/87776 ER -
Experimental Products Evaluation Program Annual Report: 2000

Williams, Gary

2001-01-01 | PDF

Rapid Implementation of new technologies is an important component of an efficiently managed transportation system. The Experimental Products Evaluation Program (EPEP) is an ongoing program established by The Research and Development Division.

11/24/2025

Title : Experimental Products Evaluation Program Annual Report: 2000 Creator(s) : Williams, Gary Corporate Creator(s) : Oklahoma. Department of Transportation Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 2001-01-01 Report Number : FHWA/OK 01(01) URL : https://rosap.ntl.bts.gov/view/dot/87775 Williams, Gary (2001). Experimental Products Evaluation Program Annual Report: 2000. Williams, Gary "Experimental Products Evaluation Program Annual Report: 2000" (2001) Williams, Gary "Experimental Products Evaluation Program Annual Report: 2000" , 2001 Export RIS Citation Information. TY - Tech Report AU - Williams, Gary A2 - Oklahoma. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - Rapid Implementation of new technologies is an important component of an efficiently managed transportation system. The Experimental Products Evaluation Program (EPEP) is an ongoing program established by The Research and Development Division. AN - dot:87775 ET - Annual Report Jan. to Dec. 2000 KW - Additives KW - Annual reports KW - Building materials KW - Fillers (Materials) KW - Paint KW - Evaluation KW - Soil stabilization KW - State departments of transportation KW - Waterproofing LA - English PB - Oklahoma. Department of Transportation PY - 2001-01-01 SN - FHWA/OK 01(01) TI - Experimental Products Evaluation Program Annual Report: 2000 M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/87775 ER -
National Transportation Atlas Database (NTAD): Census TIGERLine Roads 2021-Present [dataset]

United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization ...

2021-01-01 | National Transportation Atlas Database (NTAD) | ZIP

The Census TIGERLine Roads 2021-Present dataset is from the United States Census Bureau (USCB), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’ (BTS's) National Transportation Atlas Database (NTAD). The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and ...

11/24/2025

Supporting Files

Title : National Transportation Atlas Database (NTAD): Census TIGERLine Roads 2021-Present [dataset] Corporate Creator(s) : United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization;United States. Department of Commerce. Economics and Statistics Administration. U.S. Census Bureau; Published Date : 2021-01-01 Series : National Transportation Atlas Database (NTAD) DOI : https://doi.org/10.21949/1404293 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization (2021). National Transportation Atlas Database (NTAD): Census TIGERLine Roads 2021-Present [dataset]. https://doi.org/10.21949/1404293 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization "National Transportation Atlas Database (NTAD): Census TIGERLine Roads 2021-Present [dataset]" (2021), https://doi.org/10.21949/1404293 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization "National Transportation Atlas Database (NTAD): Census TIGERLine Roads 2021-Present [dataset]" , 2021, https://doi.org/10.21949/1404293 Export RIS Citation Information. TY - Dataset A2 - United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization A2 - United States. Department of Commerce. Economics and Statistics Administration. U.S. Census Bureau AB - The Census TIGERLine Roads 2021-Present dataset is from the United States Census Bureau (USCB), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’ (BTS's) National Transportation Atlas Database (NTAD). The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The All Roads Shapefile includes all features within the MTDB Super Class "Road/Path Features" distinguished where the MAF/TIGER Feature Classification Code (MTFCC) for the feature in MTDB that begins with "S". This includes all primary, secondary, local neighborhood, and rural roads, city streets, vehicular trails (4wd), ramps, service drives, alleys, parking lot roads, private roads for service vehicles (logging, oil fields, ranches, etc.), bike paths or trails, bridle/horse paths, walkways/pedestrian trails, and stairways. AB - National Transportation Library (NTL) Curation Note: This dataset has been curated to CoreTrustSeal's curation level "A. Active Preservation". To find out more information on CoreTrustSeal's curation levels, please consult their "Curation & Preservation Levels" CoreTrustSeal Discussion Paper" (https://doi.org/10.5281/zenodo.11476980). NTL staff last accessed this dataset at its repository URL on 2025-10-29. If, in the future, you have trouble accessing this dataset, please email NTLDataCurator@dot.gov describing your problem. NTL staff will do its best to assist you at that time. AN - dot:87774 DO - https://doi.org/10.21949/1404293 KW - Data collection KW - Data files KW - Geographic information systems KW - Roads KW - Types of roads LA - English PB - United States. Department of Transportation. Bureau of Transportation Statistics PY - 2021-01-01 T2 - National Transportation Atlas Database (NTAD) TI - National Transportation Atlas Database (NTAD): Census TIGERLine Roads 2021-Present [dataset] M3 - Dataset N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/87774 ER -
Connecting with Community: Using Women’s History for Library Outreach

Stoll, Kendra

2025-11-13 | MPEG

Kendra Stoll, a Senior Librarian with the California Department of Transportation (Caltrans), presented tips on developing library outreach at this Transportation Librarians Roundtable. Stoll shared background information about a Caltrans employee affinity group called WOMEN (Women’s Opportunity to Mentor, Empower, and Network). For Women’s History ...

11/24/2025

Supporting Files

Title : Connecting with Community: Using Women’s History for Library Outreach Creator(s) : Stoll, Kendra Corporate Creator(s) : Caltrans Transportation Library Corporate Contributor(s) : American Association of State Highway and Transportation Officials (AASHTO);National Transportation Knowledge Network (NTKN) (U.S.); Published Date : 2025-11-13 DOI : https://doi.org/10.21949/1404294 Stoll, Kendra (2025). Connecting with Community: Using Women’s History for Library Outreach. https://doi.org/10.21949/1404294 Stoll, Kendra "Connecting with Community: Using Women’s History for Library Outreach" (2025), https://doi.org/10.21949/1404294 Stoll, Kendra "Connecting with Community: Using Women’s History for Library Outreach" , 2025, https://doi.org/10.21949/1404294 Export RIS Citation Information. TY - Presentations AU - Stoll, Kendra A2 - Caltrans Transportation Library A3 - American Association of State Highway and Transportation Officials (AASHTO) A3 - National Transportation Knowledge Network (NTKN) (U.S.) AB - Kendra Stoll, a Senior Librarian with the California Department of Transportation (Caltrans), presented tips on developing library outreach at this Transportation Librarians Roundtable. Stoll shared background information about a Caltrans employee affinity group called WOMEN (Women’s Opportunity to Mentor, Empower, and Network). For Women’s History Month in March, Stoll developed a presentation that covered the history of women in Caltrans. Women were involved in important work of the department from the beginning of Caltrans. Stoll shares lessons learned during the process of delivering the presentation, the reaction from attendees, and the benefits of organizing a presentation for library outreach. AB - Recording length: 1h 00m 55s AN - dot:87773 DO - https://doi.org/10.21949/1404294 KW - Libraries KW - Library operations KW - Outreach KW - History KW - Females KW - Public information programs KW - Information services KW - Workforce LA - English PB - United States. Department of Transportation. National Transportation Library PY - 2025-11-13 TI - Connecting with Community: Using Women’s History for Library Outreach M3 - Presentations N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/87773 ER -
National Transportation Atlas Database (NTAD): Commercial Strategic Seaports 2018-Present [dataset]

United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization ...

2018-01-01 | National Transportation Atlas Database (NTAD) | ZIP

The Commercial Strategic Seaports 2018-Present dataset, formerly known as Strategic Ports, is from the U.S. Maritime Administration (MARAD), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’s (BTS's) National Transportation Atlas Database (NTAD). The National Port Readiness Network (NPRN) consists of ...

11/24/2025

Supporting Files

Title : National Transportation Atlas Database (NTAD): Commercial Strategic Seaports 2018-Present [dataset] Corporate Creator(s) : United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization;United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology; Corporate Contributor(s) : United States. Department of Transportation. Maritime Administration Published Date : 2018-01-01 Series : National Transportation Atlas Database (NTAD) DOI : https://doi.org/10.21949/1403486 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization (2018). National Transportation Atlas Database (NTAD): Commercial Strategic Seaports 2018-Present [dataset]. https://doi.org/10.21949/1403486 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization "National Transportation Atlas Database (NTAD): Commercial Strategic Seaports 2018-Present [dataset]" (2018), https://doi.org/10.21949/1403486 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization "National Transportation Atlas Database (NTAD): Commercial Strategic Seaports 2018-Present [dataset]" , 2018, https://doi.org/10.21949/1403486 Export RIS Citation Information. TY - Dataset A2 - United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization A2 - United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology A3 - United States. Department of Transportation. Maritime Administration AB - The Commercial Strategic Seaports 2018-Present dataset, formerly known as Strategic Ports, is from the U.S. Maritime Administration (MARAD), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’s (BTS's) National Transportation Atlas Database (NTAD). The National Port Readiness Network (NPRN) consists of Strategic Commercial Seaports able to support force deployment during contingencies and other defense emergencies. Nine federal agencies and organizations, USDOT/Maritime Administration (MARAD), U.S. Army Corps of Engineers (USACE), Surface Deployment and Distribution Command (SDDC), U.S. Coast Guard (USCG), Military Sea-lift Command (MSC), U.S. Army Forces Command (USFORSCOM), Transportation Security Administration (TSA), U.S. Northern Command (USNORTHCOM), and U.S. Transportation Command (USTRANSCOM) are responsible for providing guidance to the NPRN program and for supporting the secure movement of military forces through U.S. ports. This dataset includes all 18 commercial ports that currently belong to the NPRN. AB - National Transportation Library (NTL) Curation Note: This dataset has been curated to CoreTrustSeal's curation level "A. Active Preservation". To find out more information on CoreTrustSeal's curation levels, please consult their "Curation & Preservation Levels" CoreTrustSeal Discussion Paper" (https://doi.org/10.5281/zenodo.11476980). NTL staff last accessed this dataset at its repository URL on 2025-11-19. If, in the future, you have trouble accessing this dataset, please email NTLDataCurator@dot.gov describing your problem. NTL staff will do its best to assist you at that time. AN - dot:87772 DO - https://doi.org/10.21949/1403486 KW - Seaports KW - Data collection KW - Data files KW - National security KW - National defense KW - Emergency management KW - Ports KW - Military transportation KW - National Port Readiness Network KW - NPRN LA - English PB - United States. Department of Transportation. Bureau of Transportation Statistics PY - 2018-01-01 T2 - National Transportation Atlas Database (NTAD) TI - National Transportation Atlas Database (NTAD): Commercial Strategic Seaports 2018-Present [dataset] M3 - Dataset N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/87772 ER -
National Transportation Atlas Database (NTAD): DOT Regions - Federal Aviation Administration (FAA) Regions 2023-Present [dataset]

United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization ...

2023-01-01 | National Transportation Atlas Database (NTAD) | ZIP

The DOT Regions - Federal Aviation Administration (FAA) Regions 2023-Present dataset is from the Federal Aviation Administration’s Office of National Engagement and Regional Administration (FAA's ARA), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’ (BTS's) National Transportation Atlas Database (NT ...

11/24/2025

Supporting Files

Title : National Transportation Atlas Database (NTAD): DOT Regions - Federal Aviation Administration (FAA) Regions 2023-Present [dataset] Corporate Creator(s) : United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization;United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology; Published Date : 2023-01-01 Series : National Transportation Atlas Database (NTAD) DOI : https://doi.org/10.21949/1403488 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization (2023). National Transportation Atlas Database (NTAD): DOT Regions - Federal Aviation Administration (FAA) Regions 2023-Present [dataset]. https://doi.org/10.21949/1403488 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization "National Transportation Atlas Database (NTAD): DOT Regions - Federal Aviation Administration (FAA) Regions 2023-Present [dataset]" (2023), https://doi.org/10.21949/1403488 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization "National Transportation Atlas Database (NTAD): DOT Regions - Federal Aviation Administration (FAA) Regions 2023-Present [dataset]" , 2023, https://doi.org/10.21949/1403488 Export RIS Citation Information. TY - Dataset A2 - United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization A2 - United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology AB - The DOT Regions - Federal Aviation Administration (FAA) Regions 2023-Present dataset is from the Federal Aviation Administration’s Office of National Engagement and Regional Administration (FAA's ARA), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’ (BTS's) National Transportation Atlas Database (NTAD). This dataset depicts the geographical boundaries of the nine FAA regions, which fall under the FAA’s Office of National Engagement and Regional Administration (ARA). The regional office located within each region help the FAA build relationships and collaboration on the local level for the variety of stakeholders within each boundary. More information about the FAA Regions can be found at: https://www.faa.gov/about/office_org/headquarters_offices/ara AB - National Transportation Library (NTL) Curation Note: This dataset has been curated to CoreTrustSeal's curation level "A. Active Preservation". To find out more information on CoreTrustSeal's curation levels, please consult their "Curation & Preservation Levels" CoreTrustSeal Discussion Paper" (https://doi.org/10.5281/zenodo.11476980). NTL staff last accessed this dataset at its repository URL on 2025-101-19. If, in the future, you have trouble accessing this dataset, please email NTLDataCurator@dot.gov describing your problem. NTL staff will do its best to assist you at that time. AN - dot:87771 DO - https://doi.org/10.21949/1403488 KW - Data KW - Data collection KW - Aviation KW - Areas and regions KW - Regions LA - English PB - United States. Department of Transportation. Bureau of Transportation Statistics PY - 2023-01-01 T2 - National Transportation Atlas Database (NTAD) TI - National Transportation Atlas Database (NTAD): DOT Regions - Federal Aviation Administration (FAA) Regions 2023-Present [dataset] M3 - Dataset N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/87771 ER -
Analysis of Child Restraint System (CRS) Compatibility with Aircraft Seats [supporting dataset]

Mansfield, Julie A.

;

Pellettiere, Joseph

2025-11-01 | ZIP

The Federal Aviation Administration (FAA) encourages the use of aircraft-approved child restraint systems (CRS, or child safety seats) on aircraft. CRS are primarily designed for use in automotive vehicles. The installation of a CRS on an aircraft seat can be challenging due to physical space restrictions. If too many barriers exist for caregivers ...

11/18/2025

Title : Analysis of Child Restraint System (CRS) Compatibility with Aircraft Seats [supporting dataset] Creator(s) : Mansfield, Julie A.;Pellettiere, Joseph; Corporate Creator(s) : Ohio State University. Injury Biomechanics Research Center (IBRC) Corporate Contributor(s) : Children’s Hospital of Philadelphia. Center for Child Injury Prevention Studies (CChIPS) Published Date : 2025-11-01 DOI : https://doi.org/10.21949/1529728 Mansfield, Julie A. and Pellettiere, Joseph (2025). Analysis of Child Restraint System (CRS) Compatibility with Aircraft Seats [supporting dataset]. https://doi.org/10.21949/1529728 Mansfield, Julie A. and Pellettiere, Joseph "Analysis of Child Restraint System (CRS) Compatibility with Aircraft Seats [supporting dataset]" (2025), https://doi.org/10.21949/1529728 Mansfield, Julie A. and Pellettiere, Joseph "Analysis of Child Restraint System (CRS) Compatibility with Aircraft Seats [supporting dataset]" , 2025, https://doi.org/10.21949/1529728 Export RIS Citation Information. TY - Dataset AU - Mansfield, Julie A. AU - Pellettiere, Joseph A2 - Ohio State University. Injury Biomechanics Research Center (IBRC) A3 - Children’s Hospital of Philadelphia. Center for Child Injury Prevention Studies (CChIPS) AB - The Federal Aviation Administration (FAA) encourages the use of aircraft-approved child restraint systems (CRS, or child safety seats) on aircraft. CRS are primarily designed for use in automotive vehicles. The installation of a CRS on an aircraft seat can be challenging due to physical space restrictions. If too many barriers exist for caregivers attempting to fly with a CRS, they might choose a less safe option such as holding their infant or buckling a small child into a lap belt only. The broad objective of this work is to quantify compatibility concerns between CRS and aircraft seats and belts to ultimately facilitate higher rates of CRS use on aircraft. The physical dimensions of aircraft seats (n=8) were obtained through collaboration with the seat manufacturers. Seats included economy and premium in regional jet, narrow body, and wide body aircraft. The corresponding dimensions of various CRS (n=64) were compiled from previous studies. Compatibility between CRS and aircraft seats was predicted in terms of seat width, seat cushion angles, seat cushion length, head restraint height, depth, and belt buckle location. Aircraft seat dimensions were also compared to automotive vehicle seat dimensions (n=111) collected during previous studies so that broad comparisons could be made across the seating environments. Aircraft seat dimensions were also compared to the Federal Motor Vehicle Safety Standard (FMVSS) 213 inversion bench and the aircraft/CRS compatibility guidance within SAE Aerospace Recommended Practice (ARP) 4466. The width of several aircraft seats could not accommodate the width of many CRS, especially larger types of CRS in regional jet or narrow body aircraft. Aircraft seat cushion angles were more horizontal than those in vehicles. The seat back angle with respect to seat cushion angle matched forward-facing (FF) CRS reasonably well, suggesting good fit in terms of angle. Seat cushion length in aircraft are shorter than the length needed to accommodate many rear-facing (RF) CRS. The depth of aircraft seats (fore/aft space between rows) is similar to that of vehicles with the front row slider track in the fully rearward position. This may cause difficulty installing large CRS in RF mode. Aircraft seat belt buckle hardware often sits within the belt path of many CRS. The FMVSS 213 inversion bench has a steeper seat pan angle and more acute angle between seat cushions compared to the aircraft seat dimensions collected in this study. The aircraft seat dimensions matched the guidance in SAE ARP4466 well, and the recommended dimensions would accommodate some of the smaller CRS but not larger CRS. AB - The total size of the ZIP file is 12KB. AB - This item is made available under the terms of Public Domain. Use the following citation: United States. Department of Transportation. Federal Aviation Administration. Office of Aviation. Office of Aerospace Medicine (2023). Analysis of Child Restraint System (CRS) Compatibility with Aircraft Seats [supporting datasets]. https://doi.org/10.21949/1529728 AN - dot:87770 DO - https://doi.org/10.21949/1529728 KW - Aircraft KW - Child safety seats KW - Child restraint systems KW - Aviation safety KW - Data files LA - English PB - United States. Department of Transportation. Federal Aviation Administration. Office of Aviation. Civil Aerospace Medical Institute PY - 2025-11-01 TI - Analysis of Child Restraint System (CRS) Compatibility with Aircraft Seats [supporting dataset] M3 - Dataset N1 - United States N1 - GR120614 N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/87770 ER -
Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for July through September 2023

United States. Department of Transportation. Federal Highway Administration. Office of Operations

2023-09-01 | Urban Congestion Report (UCR) | PDF

The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year.

11/17/2025

Title : Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for July through September 2023 Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Office of Operations Published Date : 2023-09-01 Series : Urban Congestion Report (UCR) URL : https://rosap.ntl.bts.gov/view/dot/87769 United States. Department of Transportation. Federal Highway Administration. Office of Operations (2023). Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for July through September 2023. United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for July through September 2023" (2023) United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for July through September 2023" , 2023 Export RIS Citation Information. TY - Statistical Report A2 - United States. Department of Transportation. Federal Highway Administration. Office of Operations AB - The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year. AN - dot:87769 KW - Traffic congestion KW - Urban transportation KW - Reliability (Statistics) KW - Data collection KW - Data analysis LA - English PB - United States. Department of Transportation. Federal Highway Administration. Office of Operations PY - 2023-09-01 T2 - Urban Congestion Report (UCR) TI - Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for July through September 2023 M3 - Statistical Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/87769 ER -
Project Delivery Design-Build Guidance

Sullivan, Kenneth T.

;

Grau, David

2025-11-01 | PDF

This report benchmarks Design-Build (DB) and Progressive Design-Build (PDB) practices across 17 U.S. transportation agencies to inform Arizona DOT’s alternative-delivery program. It analyzes statutory provisions, DB manuals, and interviews with project stakeholders to document notable practices in cost control, risk allocation, training, DBE inclus ...

11/17/2025

Title : Project Delivery Design-Build Guidance Creator(s) : Sullivan, Kenneth T.;Grau, David;Papajohn, Dean;Hurtado, Kristen;Batarseh, Sana; Corporate Creator(s) : Arizona State University Corporate Contributor(s) : Arizona. Department of Transportation;United States. Department of Transportation. Federal Highway Administration; Published Date : 2025-11-01 Report Number : SPR-791 URL : https://rosap.ntl.bts.gov/view/dot/87768 Sullivan, Kenneth T. et al. (2025). Project Delivery Design-Build Guidance. Sullivan, Kenneth T. et al. "Project Delivery Design-Build Guidance" (2025) Sullivan, Kenneth T. et al. "Project Delivery Design-Build Guidance" , 2025 Export RIS Citation Information. TY - Tech Report AU - Sullivan, Kenneth T. AU - Grau, David AU - Papajohn, Dean AU - Hurtado, Kristen AU - Batarseh, Sana A2 - Arizona State University A3 - Arizona. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - This report benchmarks Design-Build (DB) and Progressive Design-Build (PDB) practices across 17 U.S. transportation agencies to inform Arizona DOT’s alternative-delivery program. It analyzes statutory provisions, DB manuals, and interviews with project stakeholders to document notable practices in cost control, risk allocation, training, DBE inclusion, quality assurance, and public engagement. Findings document notable practices and lessons learned for ADOT consideration and highlight emerging tools such as on-call independent cost estimators, rolling DBE goals, and project dashboards. AN - dot:87768 ET - Final Report KW - Design build construction KW - Laws KW - Risk KW - Cost estimating KW - Scheduling KW - Performance KW - Cost control KW - Training programs KW - Quality assurance KW - Project delivery KW - Guidelines KW - Lessons learned KW - State departments of transportation KW - Manuals KW - Interviewing KW - Design build KW - Progressive Design Build (PDB) KW - state DOT statutes KW - alternative-delivery statutes KW - risk allocation KW - independent cost estimating (ICE) KW - schedule performance KW - alternative project delivery LA - English PB - Arizona. Department of Transportation. Research Center PY - 2025-11-01 SN - SPR-791 TI - Project Delivery Design-Build Guidance M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/87768 ER -
Pilot Implementation of Concrete Pavement Thickness GPR

Liu, Richard ;

Li, Jing

2004-11-01 | PDF

Research Project 5-4414 “Pilot Implementation of Concrete Pavement Thickness GPR (CPT-GPR)” has been successfully completed. In this project, two CPT-GPR systems were manufactured, including GPR electronics, thickness and dielectric constant calculation algorithm, software interface, distance measuring encoder, LCD displays, and pushcart. The GPR o ...

11/17/2025

Title : Pilot Implementation of Concrete Pavement Thickness GPR Creator(s) : Liu, Richard;Li, Jing;Chen, Xuemin;Xing, Huichun; Corporate Creator(s) : University of Houston. Department of Electrical and Computer Engineering Corporate Contributor(s) : Texas Department of Transportation. Research and Technology Implementation Office;United States. Department of Transportation. Federal Highway Administration; Published Date : 2004-11-01 Report Number : FHWA/TX-05/5-4414-01-3 URL : https://rosap.ntl.bts.gov/view/dot/87767 Liu, Richard et al. (2004). Pilot Implementation of Concrete Pavement Thickness GPR. Liu, Richard et al. "Pilot Implementation of Concrete Pavement Thickness GPR" (2004) Liu, Richard et al. "Pilot Implementation of Concrete Pavement Thickness GPR" , 2004 Export RIS Citation Information. TY - Tech Report AU - Liu, Richard AU - Li, Jing AU - Chen, Xuemin AU - Xing, Huichun A2 - University of Houston. Department of Electrical and Computer Engineering A3 - Texas Department of Transportation. Research and Technology Implementation Office A3 - United States. Department of Transportation. Federal Highway Administration AB - Research Project 5-4414 “Pilot Implementation of Concrete Pavement Thickness GPR (CPT-GPR)” has been successfully completed. In this project, two CPT-GPR systems were manufactured, including GPR electronics, thickness and dielectric constant calculation algorithm, software interface, distance measuring encoder, LCD displays, and pushcart. The GPR operation manuals and training materials were composed and distributed to TxDOT district engineers. Using the training materials, three training classes were held in Beaumont, Dallas, and Austin districts, respectively. Field tests were also conducted in the above three districts. The test data on the fields will be presented in this report. AN - dot:87767 ET - September 1, 2003 – August 31, 2004 KW - Algorithms KW - Computer program documentation KW - Concrete pavements KW - Dielectric properties KW - Field tests KW - Ground penetrating radar LA - English PB - Texas. Department of Transportation PY - 2004-11-01 SN - FHWA/TX-05/5-4414-01-3 TI - Pilot Implementation of Concrete Pavement Thickness GPR M3 - Tech Report N1 - United States N1 - 5-4414-01 UR - https://rosap.ntl.bts.gov/view/dot/87767 ER -
Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for April through June 2025

United States. Department of Transportation. Federal Highway Administration. Office of Operations

2025-06-01 | Urban Congestion Report (UCR) | PDF

The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year.

11/17/2025

Title : Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for April through June 2025 Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Office of Operations Published Date : 2025-06-01 Series : Urban Congestion Report (UCR) URL : https://rosap.ntl.bts.gov/view/dot/87765 United States. Department of Transportation. Federal Highway Administration. Office of Operations (2025). Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for April through June 2025. United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for April through June 2025" (2025) United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for April through June 2025" , 2025 Export RIS Citation Information. TY - Statistical Report A2 - United States. Department of Transportation. Federal Highway Administration. Office of Operations AB - The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year. AN - dot:87765 KW - Traffic congestion KW - Urban transportation KW - Reliability (Statistics) KW - Data collection KW - Data analysis LA - English PB - United States. Department of Transportation. Federal Highway Administration. Office of Operations PY - 2025-06-01 T2 - Urban Congestion Report (UCR) TI - Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for April through June 2025 M3 - Statistical Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/87765 ER -
Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for January through March 2025

United States. Department of Transportation. Federal Highway Administration. Office of Operations

2025-03-01 | Urban Congestion Report (UCR) | PDF

The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year.

11/17/2025

Title : Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for January through March 2025 Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Office of Operations Published Date : 2025-03-01 Series : Urban Congestion Report (UCR) URL : https://rosap.ntl.bts.gov/view/dot/87764 United States. Department of Transportation. Federal Highway Administration. Office of Operations (2025). Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for January through March 2025. United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for January through March 2025" (2025) United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for January through March 2025" , 2025 Export RIS Citation Information. TY - Statistical Report A2 - United States. Department of Transportation. Federal Highway Administration. Office of Operations AB - The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year. AN - dot:87764 KW - Traffic congestion KW - Urban transportation KW - Reliability (Statistics) KW - Data collection KW - Data analysis LA - English PB - United States. Department of Transportation. Federal Highway Administration. Office of Operations PY - 2025-03-01 T2 - Urban Congestion Report (UCR) TI - Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for January through March 2025 M3 - Statistical Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/87764 ER -
Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for October through December 2024

United States. Department of Transportation. Federal Highway Administration. Office of Operations

2024-12-01 | Urban Congestion Report (UCR) | PDF

The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year.

11/17/2025

Title : Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for October through December 2024 Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Office of Operations Published Date : 2024-12-01 Series : Urban Congestion Report (UCR) URL : https://rosap.ntl.bts.gov/view/dot/87763 United States. Department of Transportation. Federal Highway Administration. Office of Operations (2024). Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for October through December 2024. United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for October through December 2024" (2024) United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for October through December 2024" , 2024 Export RIS Citation Information. TY - Statistical Report A2 - United States. Department of Transportation. Federal Highway Administration. Office of Operations AB - The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year. AN - dot:87763 KW - Traffic congestion KW - Urban transportation KW - Reliability (Statistics) KW - Data collection KW - Data analysis LA - English PB - United States. Department of Transportation. Federal Highway Administration. Office of Operations PY - 2024-12-01 T2 - Urban Congestion Report (UCR) TI - Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for October through December 2024 M3 - Statistical Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/87763 ER -
Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for July through September 2024

United States. Department of Transportation. Federal Highway Administration. Office of Operations

2024-09-01 | Urban Congestion Report (UCR) | PDF

The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year.

11/17/2025

Title : Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for July through September 2024 Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Office of Operations Published Date : 2024-09-01 Series : Urban Congestion Report (UCR) URL : https://rosap.ntl.bts.gov/view/dot/87762 United States. Department of Transportation. Federal Highway Administration. Office of Operations (2024). Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for July through September 2024. United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for July through September 2024" (2024) United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for July through September 2024" , 2024 Export RIS Citation Information. TY - Statistical Report A2 - United States. Department of Transportation. Federal Highway Administration. Office of Operations AB - The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year. AN - dot:87762 KW - Traffic congestion KW - Urban transportation KW - Reliability (Statistics) KW - Data collection KW - Data analysis LA - English PB - United States. Department of Transportation. Federal Highway Administration. Office of Operations PY - 2024-09-01 T2 - Urban Congestion Report (UCR) TI - Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for July through September 2024 M3 - Statistical Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/87762 ER -
Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for April through June 2024

United States. Department of Transportation. Federal Highway Administration. Office of Operations

2024-06-01 | Urban Congestion Report (UCR) | PDF

The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year.

11/17/2025

Title : Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for April through June 2024 Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Office of Operations Published Date : 2024-06-01 Series : Urban Congestion Report (UCR) URL : https://rosap.ntl.bts.gov/view/dot/87761 United States. Department of Transportation. Federal Highway Administration. Office of Operations (2024). Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for April through June 2024. United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for April through June 2024" (2024) United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for April through June 2024" , 2024 Export RIS Citation Information. TY - Statistical Report A2 - United States. Department of Transportation. Federal Highway Administration. Office of Operations AB - The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year. AN - dot:87761 KW - Traffic congestion KW - Urban transportation KW - Reliability (Statistics) KW - Data collection KW - Data analysis LA - English PB - United States. Department of Transportation. Federal Highway Administration. Office of Operations PY - 2024-06-01 T2 - Urban Congestion Report (UCR) TI - Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for April through June 2024 M3 - Statistical Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/87761 ER -
Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for January through March 2024

United States. Department of Transportation. Federal Highway Administration. Office of Operations

2024-03-01 | Urban Congestion Report (UCR) | PDF

The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year.

11/17/2025

Title : Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for January through March 2024 Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Office of Operations Published Date : 2024-03-01 Series : Urban Congestion Report (UCR) URL : https://rosap.ntl.bts.gov/view/dot/87760 United States. Department of Transportation. Federal Highway Administration. Office of Operations (2024). Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for January through March 2024. United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for January through March 2024" (2024) United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for January through March 2024" , 2024 Export RIS Citation Information. TY - Statistical Report A2 - United States. Department of Transportation. Federal Highway Administration. Office of Operations AB - The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year. AN - dot:87760 KW - Traffic congestion KW - Urban transportation KW - Reliability (Statistics) KW - Data collection KW - Data analysis LA - English PB - United States. Department of Transportation. Federal Highway Administration. Office of Operations PY - 2024-03-01 T2 - Urban Congestion Report (UCR) TI - Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for January through March 2024 M3 - Statistical Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/87760 ER -
Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for October through December 2023

United States. Department of Transportation. Federal Highway Administration. Office of Operations

2023-12-01 | Urban Congestion Report (UCR) | PDF

The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year.

11/17/2025

Title : Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for October through December 2023 Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Office of Operations Published Date : 2023-12-01 Series : Urban Congestion Report (UCR) URL : https://rosap.ntl.bts.gov/view/dot/87759 United States. Department of Transportation. Federal Highway Administration. Office of Operations (2023). Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for October through December 2023. United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for October through December 2023" (2023) United States. Department of Transportation. Federal Highway Administration. Office of Operations "Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for October through December 2023" , 2023 Export RIS Citation Information. TY - Statistical Report A2 - United States. Department of Transportation. Federal Highway Administration. Office of Operations AB - The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year. AN - dot:87759 KW - Traffic congestion KW - Urban transportation KW - Reliability (Statistics) KW - Data collection KW - Data analysis LA - English PB - United States. Department of Transportation. Federal Highway Administration. Office of Operations PY - 2023-12-01 T2 - Urban Congestion Report (UCR) TI - Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for October through December 2023 M3 - Statistical Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/87759 ER -

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