United States. Department of Transportation. Federal Highway Administration. Office of Operations
2020-03-01
|
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.
United States. Department of Transportation. Federal Highway Administration. Office of Operations (2020). Urban Congestion Report (UCR): A Snapshot of Year-to-Year Congestion Trends in the U.S. for January through March 2020. United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/87744
United States. Department of Transportation. Federal Highway Administration. Office of Operations. Urban Congestion Report (UCR): A Snapshot of Year-to-Year Congestion Trends in the U.S. for January through March 2020. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2020. https://rosap.ntl.bts.gov/view/dot/87744.
United States. Department of Transportation. Federal Highway Administration. Office of Operations Urban Congestion Report (UCR): A Snapshot of Year-to-Year Congestion Trends in the U.S. for January through March 2020. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/87744.
The Accessible Transportation Technologies Research Initiative (ATTRI) is an accessibility-oriented research project supported by multiple partners, including the U.S. Department of Transportation (USDOT); the Federal Highway Administration (FHWA); Federal Transit Administration (FTA); Intelligent Transportation Systems Joint Program Office (ITS JP
...
Broader, J., Cohen, A., Shaheen, S., Auer, A., & Hoban, S. (2020). Accessible Transportation Technologies Research Initiative (ATTRI) Policy Roadmap for Development Policies to Enable Widespread Deployment (Report No. FHWA-JPO-20-783). United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office (ITS JPO). https://rosap.ntl.bts.gov/view/dot/50550
Broader, Jacquelyn, Adam Cohen, Susan Shaheen, Ashley Auer, and Sarah Hoban. Accessible Transportation Technologies Research Initiative (ATTRI) Policy Roadmap for Development Policies to Enable Widespread Deployment. Report no. FHWA-JPO-20-783. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office (ITS JPO), 2020. https://rosap.ntl.bts.gov/view/dot/50550.
Broader, Jacquelyn, et al. Accessible Transportation Technologies Research Initiative (ATTRI) Policy Roadmap for Development Policies to Enable Widespread Deployment. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office (ITS JPO), 2020, Report no. FHWA-JPO-20-783, ROSA P. https://rosap.ntl.bts.gov/view/dot/50550.
United States. Federal Highway Administration. Center for Accelerating Innovation
2020-03-01
|
PDF
Innovator, published by the FHWA Center for Accelerating Innovation, advances implementation of innovative technologies and processes in the highway industry. Its audience is transportation professionals in highway agencies, trade and research groups, academia and the private sector, and the driving public.
United States. Federal Highway Administration. Center for Accelerating Innovation (2020). Innovator - March/April 2020 - Volume 13, Issue 77. United States. Federal Highway Administration. Center for Accelerating Innovation. https://rosap.ntl.bts.gov/view/dot/55568
United States. Federal Highway Administration. Center for Accelerating Innovation. Innovator - March/April 2020 - Volume 13, Issue 77. United States. Federal Highway Administration. Center for Accelerating Innovation, 2020. https://rosap.ntl.bts.gov/view/dot/55568.
United States. Federal Highway Administration. Center for Accelerating Innovation Innovator - March/April 2020 - Volume 13, Issue 77. United States. Federal Highway Administration. Center for Accelerating Innovation, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/55568.
State and local transportation agencies collect pavement condition data to support their pavement management programs. The majority of state agencies collect network-level data with systems that operate at the prevailing speed limit. This report documents the development of technical guidelines for agencies consideration in the procurement process
...
Morian, D. A., Frith, D., Stoffels, S. M., & Jahangirnejad, S. (2020). Developing Guidelines for Cracking Assessment for Use in Vendor Selection Process for Pavement Crack Data Collection/Analysis Systems and/or Services (Report No. FHWA-RC-20-0005). United States. Federal Highway Administration. Office of Technical Services. https://rosap.ntl.bts.gov/view/dot/55791
Morian, Dennis A., Douglas Frith, Shelley M. Stoffels, and Shervin Jahangirnejad. Developing Guidelines for Cracking Assessment for Use in Vendor Selection Process for Pavement Crack Data Collection/Analysis Systems and/or Services. Report no. FHWA-RC-20-0005. United States. Federal Highway Administration. Office of Technical Services, 2020. https://rosap.ntl.bts.gov/view/dot/55791.
Morian, Dennis A., et al. Developing Guidelines for Cracking Assessment for Use in Vendor Selection Process for Pavement Crack Data Collection/Analysis Systems and/or Services. United States. Federal Highway Administration. Office of Technical Services, 2020, Report no. FHWA-RC-20-0005, ROSA P. https://rosap.ntl.bts.gov/view/dot/55791.
United States. Federal Highway Administration. Office of Natural Environment
2020-03-01
|
PDF
This brief newsletter each month keeps transportation stakeholders up-to-date on various issues related to transportation and climate change.
United States. Federal Highway Administration. Office of Natural Environment (2020). Air Quality and Sustainable Transportation Highlights: March/April 2020. Federal Highway Administration (U.S.). https://rosap.ntl.bts.gov/view/dot/53679
United States. Federal Highway Administration. Office of Natural Environment. Air Quality and Sustainable Transportation Highlights: March/April 2020. Federal Highway Administration (U.S.), 2020. https://rosap.ntl.bts.gov/view/dot/53679.
United States. Federal Highway Administration. Office of Natural Environment Air Quality and Sustainable Transportation Highlights: March/April 2020. Federal Highway Administration (U.S.), 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/53679.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2020-03-01
|
Public Roads
|
PDF
Public Roads is the quarterly magazine of the Federal Highway Administration (FHWA). Reading Public Roads is the easiest way to keep up-to-date on developments in federal highway policies, programs, and research and technology. More specifically, the magazine "covers" advances and innovations in highway/traffic research and technology, critical nat
...
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology (2020). Public Roads: Spring 2020 (Report No. FHWA-HRT-20-003). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/49178
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. Public Roads: Spring 2020. Report no. FHWA-HRT-20-003. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2020. https://rosap.ntl.bts.gov/view/dot/49178.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology Public Roads: Spring 2020. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2020, Report no. FHWA-HRT-20-003, ROSA P. https://rosap.ntl.bts.gov/view/dot/49178.
The United States Department of Transportation (U.S. DOT) has long been a leader in research, development, and evaluation of technologies for transportation and strong supporter of adoption and use of new and innovative technologies—known as intelligent transportation systems (ITS). Through the leadership of the ITS Joint Program Office (JPO) and m
...
Chan-Edmiston, S., Fischer, S., Sloan, S., & Wong, M. (2020). Intelligent Transportation Systems (ITS) Joint Program Office: Strategic Plan 2020–2025 (Report No. FHWA-JPO-18-746). United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office. https://doi.org/10.21949/1527606
Chan-Edmiston, Sharon, Stephanie Fischer, Suzanne Sloan, and Melissa Wong. Intelligent Transportation Systems (ITS) Joint Program Office: Strategic Plan 2020–2025. Report no. FHWA-JPO-18-746. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2020. https://doi.org/10.21949/1527606.
Chan-Edmiston, Sharon, et al. Intelligent Transportation Systems (ITS) Joint Program Office: Strategic Plan 2020–2025. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2020, Report no. FHWA-JPO-18-746, ROSA P. https://doi.org/10.21949/1527606.
Emerging ISTD technology uses an innovative erosion head that more accurately measures soil erosion resistance, resulting in more cost-effective foundation designs and greater reliability and resiliency in bridge performance.
United States. Federal Highway Administration (2020). In-Situ Scour Testing Device (ISTD), State Demonstrations of Field Soil Tests, Gulf Islands National Seashore, MS (Report No. FHWA-HRT-20-032). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/48740
United States. Federal Highway Administration. In-Situ Scour Testing Device (ISTD), State Demonstrations of Field Soil Tests, Gulf Islands National Seashore, MS. Report no. FHWA-HRT-20-032. United States. Federal Highway Administration, 2020. https://rosap.ntl.bts.gov/view/dot/48740.
United States. Federal Highway Administration In-Situ Scour Testing Device (ISTD), State Demonstrations of Field Soil Tests, Gulf Islands National Seashore, MS. United States. Federal Highway Administration, 2020, Report no. FHWA-HRT-20-032, ROSA P. https://rosap.ntl.bts.gov/view/dot/48740.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2020-03-01
|
PDF
Traffic Volume Trends is a monthly report based on hourly traffic count data reported by the States. These data are collected at approximately 5,000 continuous traffic counting locations nationwide and are used to estimate the percent change in traffic for the current month compared with the same month in the previous year. Estimates are re-adjuste
...
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2020). Traffic Volume Trends: March 2020. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/50075
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Traffic Volume Trends: March 2020. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2020. https://rosap.ntl.bts.gov/view/dot/50075.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Traffic Volume Trends: March 2020. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/50075.
This is an Informational Guide on traffic data collection and estimation of annual average daily traffic (AADT) for non-Federal aid-system (NFAS) roads. NFAS roads refer to rural minor collectors (6R) and both rural and urban local roads (7R and 7U). This Informational Guide describes four preparation steps for safety data integration and an eight-
...
Tsapakis, I., Holik, W., Das, S., Kraus, E., & Anderson, P. R. (2020). Informational Guide on Data Collection and Annual Average Daily Traffic (AADT) Estimation for Non-Federal Aid-System (NFAS) Roads (Report No. FHWA-SA-20-064). United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/91956
Tsapakis, Ioannis, William Holik, Subasish Das, Edgar Kraus, and Paul R. Anderson. Informational Guide on Data Collection and Annual Average Daily Traffic (AADT) Estimation for Non-Federal Aid-System (NFAS) Roads. Report no. FHWA-SA-20-064. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2020. https://rosap.ntl.bts.gov/view/dot/91956.
Tsapakis, Ioannis, et al. Informational Guide on Data Collection and Annual Average Daily Traffic (AADT) Estimation for Non-Federal Aid-System (NFAS) Roads. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2020, Report no. FHWA-SA-20-064, ROSA P. https://rosap.ntl.bts.gov/view/dot/91956.
This document describes the Deployment Plan for the New York City Department of Transportation (NYC) Connected Vehicle Pilot Deployment (CVPD) Project. This plan describes the approach to complete Phase 2 Design/Build/Test, and Phase 3 Operate and Maintain of the program. In the plan are details about the design approach, procurement, development,
...
Talas, M., Bradley, M., Rausch, R., Benevelli, D., Sim, S., Opie, K., Stanley, C., & Whyte, W. (2020). Connected Vehicle Pilot Deployment Program Phase 1: Comprehensive Deployment Plan: New York City: Volume 1: Technical Application: Part I: Technical and Management Approach (Report No. FHWA-JPO-16-309). United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office. https://rosap.ntl.bts.gov/view/dot/31730
Talas, Mohamad, Margaret Bradley, Robert Rausch, David Benevelli, Samuel Sim, Keir Opie, Chris Stanley, and William Whyte. Connected Vehicle Pilot Deployment Program Phase 1: Comprehensive Deployment Plan: New York City: Volume 1: Technical Application: Part I: Technical and Management Approach. Report no. FHWA-JPO-16-309. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2020. https://rosap.ntl.bts.gov/view/dot/31730.
Talas, Mohamad, et al. Connected Vehicle Pilot Deployment Program Phase 1: Comprehensive Deployment Plan: New York City: Volume 1: Technical Application: Part I: Technical and Management Approach. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2020, Report no. FHWA-JPO-16-309, ROSA P. https://rosap.ntl.bts.gov/view/dot/31730.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty
2020-02-20
|
PDF
This digest shares the latest information from a range of Federal and non-Federal sources, addressing transportation and its relationship to the human environment. Through this information exchange, FHWA hopes to foster dialogue at all levels and continue to further the state of the practice on these important topics in support of safety; infrastru
...
United States. Federal Highway Administration. Office of Planning, Environment, and Realty (2020). Human Environment Digest: February 20, 2020. United States. Federal Highway Administration. Office of Planning, Environment, and Realty. https://rosap.ntl.bts.gov/view/dot/54978
United States. Federal Highway Administration. Office of Planning, Environment, and Realty. Human Environment Digest: February 20, 2020. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2020. https://rosap.ntl.bts.gov/view/dot/54978.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty Human Environment Digest: February 20, 2020. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/54978.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2020-02-19
|
ZIP
The Federal Highway Administration (FHWA) developed the innovative CARMASM Platform to encourage collaboration with the goal of improving transportation efficiency and safety. FHWA's interest in advancing Transportation Systems Management and Operations (TSMO) strategies with automated driving technology is focused on how infrastructure can move tr
...
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology (2020). CARMA Platform Version 3.3.0 [supporting software]. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/89086
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. CARMA Platform Version 3.3.0 [supporting software]. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2020. https://rosap.ntl.bts.gov/view/dot/89086.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology CARMA Platform Version 3.3.0 [supporting software]. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/89086.
United States. Department of Transportation. Federal Highway Policy & Guidance Center
2020-02-14
|
Memoranda & Guidance: Guidance
|
PDF
This memorandum provides guidance for the implementation of a bridge replacement and rehabilitation program authorized in the Further Consolidated Appropriations Act, 2020, title I of division H, Public Law 116-94 ("2020 Appropriations Act" or "the Act"). This guidance clarifies eligible projects.
United States. Department of Transportation. Federal Highway Policy & Guidance Center (2020). Action: Implementation of FY 2020 Bridge Replacement and Rehabilitation Program. United States. Department of Transportation. Federal Highway Policy & Guidance Center. https://rosap.ntl.bts.gov/view/dot/77781
United States. Department of Transportation. Federal Highway Policy & Guidance Center. Action: Implementation of FY 2020 Bridge Replacement and Rehabilitation Program. United States. Department of Transportation. Federal Highway Policy & Guidance Center, 2020. https://rosap.ntl.bts.gov/view/dot/77781.
United States. Department of Transportation. Federal Highway Policy & Guidance Center Action: Implementation of FY 2020 Bridge Replacement and Rehabilitation Program. United States. Department of Transportation. Federal Highway Policy & Guidance Center, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/77781.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty
2020-02-07
|
ZIP
The Traffic Noise Model is the FHWA's computer program for highway traffic noise prediction and analysis. TNM has been updated many times to add new content and capabilities, address different bugs, and include improved software and modeling methods.TNM 3.0 features a new map-based GUI for data entry and analysis and new acoustical algorithms. Thes
...
United States. Federal Highway Administration. Office of Planning, Environment, and Realty (2020). FHWA Traffic Noise Model Version 3.0 [supporting software]. United States. Federal Highway Administration. Office of Planning, Environment, and Realty. https://rosap.ntl.bts.gov/view/dot/88997
United States. Federal Highway Administration. Office of Planning, Environment, and Realty. FHWA Traffic Noise Model Version 3.0 [supporting software]. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2020. https://rosap.ntl.bts.gov/view/dot/88997.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty FHWA Traffic Noise Model Version 3.0 [supporting software]. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/88997.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty
2020-02-06
|
PDF
This digest shares the latest information from a range of Federal and non-Federal sources, addressing transportation and its relationship to the human environment. Through this information exchange, FHWA hopes to foster dialogue at all levels and continue to further the state of the practice on these important topics in support of safety; infrastru
...
United States. Federal Highway Administration. Office of Planning, Environment, and Realty (2020). Human Environment Digest: February 6, 2020. United States. Federal Highway Administration. Office of Planning, Environment, and Realty. https://rosap.ntl.bts.gov/view/dot/54979
United States. Federal Highway Administration. Office of Planning, Environment, and Realty. Human Environment Digest: February 6, 2020. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2020. https://rosap.ntl.bts.gov/view/dot/54979.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty Human Environment Digest: February 6, 2020. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/54979.
Researchers at the University of Nevada, Reno explored the feasibility of a self-sensing adaptive bridge bearing system. In this system, rubber bearings and sensors made of a magnetorheological elastomer (MRE) (or controllable rubber) respond to loads and vibrations through automated changes in stiffness. The system has a wireless, self-sensing cap
...
Gordaninejad, F., Itani, A. M., Pekcan, G., Publicover, N., Behrooz, M., Yarra, S., & Marsh, J. (2020). A Self-Sensing Adaptive Material for a New Generation of Multifunctional Highway Bridge Bearing Systems (Report No. FHWA-HRT-19-027). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/48738
Gordaninejad, Faramarz, Ahmad M. Itani, Gokhan Pekcan, Nelson Publicover, Majid Behrooz, Siddaiah Yarra, and Joanna Marsh. A Self-Sensing Adaptive Material for a New Generation of Multifunctional Highway Bridge Bearing Systems. Report no. FHWA-HRT-19-027. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2020. https://rosap.ntl.bts.gov/view/dot/48738.
Gordaninejad, Faramarz, et al. A Self-Sensing Adaptive Material for a New Generation of Multifunctional Highway Bridge Bearing Systems. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2020, Report no. FHWA-HRT-19-027, ROSA P. https://rosap.ntl.bts.gov/view/dot/48738.
Communities consist of intertwined systems of land use, transportation, and the built environment. How one system is managed impacts all other systems – increasing the need to work together to make positive change. As a result, health and transportation concerns can be found in different public agencies with similar or supportive goals. By working
...
United States. Federal Highway Administration (2020). Interagency Partnerships: Making Connections. United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/54128
United States. Federal Highway Administration. Interagency Partnerships: Making Connections. United States. Federal Highway Administration, 2020. https://rosap.ntl.bts.gov/view/dot/54128.
United States. Federal Highway Administration Interagency Partnerships: Making Connections. United States. Federal Highway Administration, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/54128.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2020-02-01
|
PDF
Traffic Volume Trends is a monthly report based on hourly traffic count data reported by the States. These data are collected at approximately 5,000 continuous traffic counting locations nationwide and are used to estimate the percent change in traffic for the current month compared with the same month in the previous year. Estimates are re-adjuste
...
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2020). Traffic Volume Trends: February 2020. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/50074
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Traffic Volume Trends: February 2020. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2020. https://rosap.ntl.bts.gov/view/dot/50074.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Traffic Volume Trends: February 2020. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/50074.
This FHWA project seeks to research bearing resistance of large diameter open-end piles (LDOEPs) using the load and resistance factor design framework. The research evaluates existing static design methods using a new load test data set of steel LDOEPs in cohesive, cohesionless, and mixed soil conditions. The analysis includes development of steel
...
Petek, K., McVay, M., & Mitchell, R. (2020). Development of Guidelines for Bearing Resistance of Large Diameter Open-End Steel Piles (Report No. FHWA-HRT-20-011). United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development. https://rosap.ntl.bts.gov/view/dot/44001
Petek, Kathryn, Michael McVay, and Robert Mitchell. Development of Guidelines for Bearing Resistance of Large Diameter Open-End Steel Piles. Report no. FHWA-HRT-20-011. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2020. https://rosap.ntl.bts.gov/view/dot/44001.
Petek, Kathryn, et al. Development of Guidelines for Bearing Resistance of Large Diameter Open-End Steel Piles. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2020, Report no. FHWA-HRT-20-011, ROSA P. https://rosap.ntl.bts.gov/view/dot/44001.
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.