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Recent Additions
This page includes the documents that were newly added to the repository within the last 30 days.
41 - 60 of 459 results
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  • Development of Multiple Growth Strategies for Use in Developing Traffic Forecasts - A Robustness Approach
    Published:
    2005-03-01
    Abstract:
    Decisions that may be based on misleading forecasts may lead to a misallocation of funds and to under-performing projects during construction and operation. Poor projections of demographic and socioeconomic data are usually cited as the major source ...
    File Type:
    Filetype[PDF - 3.07 MB]
    Added:
    01/09/2019
  • Evaluation of Corrosion Resistance of Improved Post-Tensioning Materials After Long-Term Exposure Testing
    Published:
    2011-10-01
    Abstract:
    Ten full-scale post-tensioned beam specimens were subject to 4 years of aggressive cyclic ponded saltwater exposure. Three of those specimens were additionally exposed to saltwater spray once per month on one anchorage face. Non-destructive monitorin...
    File Type:
    Filetype[PDF - 9.67 MB]
    Added:
    01/09/2019
  • Air Traffic Control Corporation Study
    Published:
    1994-05-01
    Abstract:
    This report evaluates the challenges that the air traffic control (ATC) system faces and examines potential approaches to improve the system, recommending the creation of a United States Air Traffic Services Corporation (USATS).
    File Type:
    Filetype[PDF - 11.21 MB]
    Added:
    01/09/2019
  • Achieving Energy Independence: The U.S. Transportation System in the Age of Rising Oil Prices and Supply Disruptions
    Published:
    2008-08-29
    Abstract:
    The U.S. transportation system is currently highly dependent on liquid fuels derived from oil. The sharp increase in oil prices over the last two years has highlighted the vulnerabilities inherent in this dependence and has stimulated widespread inte...
    File Type:
    Filetype[PDF - 4.07 MB]
    Added:
    01/09/2019
  • ADA Access to Passenger Vessels: Finding Safety Equivalence Solutions for Weathertight Doors With Coamings: Phase 1: Background and History
    Published:
    2004-10-01
    Abstract:
    This report examines possible approaches to provide for both marine safety and disability access at doors into passenger accommodation spaces on U.S. passenger vessels. The Architecture and Transportation Barriers Compliance Board’s ultimate object...
    File Type:
    Filetype[PDF - 1.70 MB]
    Added:
    01/09/2019
  • The Role of Federal Gasoline Excise Taxes in Public Policy
    Published:
    2009-08-16
    Abstract:
    American drivers, compared to those in other industrialized nations in Europe, pay relatively low federal, state, and local gasoline and diesel excise taxes. The Federal taxes are used specifically to fund annual highway construction, maintenance, an...
    File Type:
    Filetype[PDF - 236.22 KB]
    Added:
    01/09/2019
  • U12: Data Security Solution for Trusted Truck(R) II
    Published:
    2009-12-09
    Abstract:
    Following the successful proof-of-concept demonstration of the Trusted Truck(C) project, an essential subsequent step, addressed by this project, pertained to the development of a robust data security infrastructure. The latter pertains to both the c...
    File Type:
    Filetype[PDF - 502.23 KB]
    Added:
    01/09/2019
  • Traffic Bottlenecks: A Primer: Focus on Low-Cost Operational Improvements
    Published:
    2007-07-01
    Abstract:
    The delays arising from traffic congestion are a fact of life in many communities. According to a February 2007 Harris Poll, just over one-third (37 percent) cite traffic congestion as a serious problem in the community, while one-quarter say traffic...
    File Type:
    Filetype[PDF - 1.80 MB]
    Added:
    01/09/2019
  • Vehicle Infrastructure Integration (VII) Proof of Concept (POC) Test–Executive Summary
    Published:
    2009-02-01
    Abstract:
    In 2005, the US Department of Transportation (DOT) initiated a program to develop and test a 5.9GHz‐based Vehicle Infrastructure Integration (VII) proof of concept (POC). The POC was implemented in the northwest suburbs of Detroit, Michigan. This r...
    File Type:
    Filetype[PDF - 1.39 MB]
    Added:
    01/09/2019
  • Transit Security Design Considerations
    Published:
    2004-11-01
    Abstract:
    This document provides security design guidance on three major transit system components – bus vehicles, rail vehicles, and transit infrastructure. It provides a resource for transit agency decision makers, members of design, construction and opera...
    File Type:
    Filetype[PDF - 4.39 MB]
    Added:
    01/09/2019
  • Twin Cities Ramp Meter Evaluation: Final Report
    Published:
    2001-02-01
    Abstract:
    This report details the results of a study on the traffic flow and safety impacts of ramp metering. The study served two important public purposes. 1. It thoroughly documented the benefits resulting from ramp metering to traffic operations and relate...
    File Type:
    Filetype[PDF - 2.43 MB]
    Added:
    01/09/2019
  • The National Highway Traffic Safety Administration Traffic Safety Plan for Older Persons
    Published:
    1993-03-01
    Abstract:
    In response to the continuing and growing older person traffic safety problem, the National Highway Traffic Safety Administration prepared this Traffic Safety Plan for Older Drivers. It describes major agency efforts in problem identification, progra...
    File Type:
    Filetype[PDF - 498.10 KB]
    Added:
    01/09/2019
  • Results from the 2017 Drug and Alcohol Testing Survey: Analysis Brief
    Published:
    2019-01-01
    Abstract:
    This report summarizes the results of the 2017 Federal Motor Carrier Safety Administration (FMCSA) Drug and Alcohol Testing Survey. This annual survey measures the percentage of commercial driver’s license (CDL) drivers who test positive for contro...
    File Type:
    Filetype[PDF - 271.88 KB]
    Added:
    01/08/2019
  • Transportation Statistics Annual Report 2018 [Preliminary]
    Published:
    2018-12-01
    Abstract:
    Congress requires the Director of the Bureau of Transportation Statistics (BTS) to prepare and submit the Transportation Statistics Annual Report each year to Congress and the President. Using data collected or compiled by BTS, this 23rd edition of t...
    File Type:
    Filetype[PDF - 40.49 MB]
    Added:
    01/08/2019
  • Pocket Guide to Transportation 2019
    Published:
    2019-01-01
    Abstract:
    The BTS Pocket Guide to Transportation is a quick reference guide that provides transportation statistics at your fingertips. It provides key information and highlights major trends on the U.S. transportation system. This year features an updated Poc...
    File Type:
    Filetype[PDF - 4.20 MB]
    Added:
    01/08/2019
  • An Exploratory Study on Functionally Graded Materials with Applications to Multilayered Pavement Design: Executive Summary Report
    Published:
    2007-08-15
    Abstract:
    The objective of this exploratory and high-risk study is to investigate how the gradually varied elastic moduli affect the load response of the flexible pavement. Instead of using the average moduli, the elastic moduli of each layer in a pavement str...
    File Type:
    Filetype[PDF - 48.30 KB]
    Added:
    01/08/2019
  • The 2007 Urban Mobility Report
    Published:
    2007-09-01
    Abstract:
    Congestion is a problem in America's 437 urban areas and it is getting worse in regions of all sizes. Congestion caused urban Americans to travel 4.2 billion hours more and to purchase an extra 2.9 billion gallons of fuel for a congestion cost of $78...
    File Type:
    Filetype[PDF - 768.71 KB]
    Added:
    01/08/2019
  • The Case for Moderate Growth in Vehicle Miles of Travel: A Critical Juncture in U.S. Travel Behavior Trends
    Published:
    2006-04-01
    Abstract:
    This paper hypothesizes that the United States has reached a critical juncture in terms of national mobility trends and underlying socio-demographic conditions and travel behavior that will result in more moderate rates of annual vehicle miles of tra...
    File Type:
    Filetype[PDF - 306.97 KB]
    Added:
    01/08/2019
  • Safety Evaluation of the Safety Edge Treatment [Final Report]
    Published:
    2011-03-01
    Abstract:
    Between periods of maintenance, pavement-edge drop-offs can form along the edge of highways. When a driver runs off the roadway, such drop-offs can hinder reentry and may lead to driver overcorrection, loss of control, or overturning on the roadway o...
    File Type:
    Filetype[PDF - 1.30 MB]
    Added:
    01/08/2019
  • Older Drivers and Navigation Devices
    Published:
    2018-06-01
    Abstract:
    This project examined measures related to older adults’ driving performance while they drove to a familiar destination without navigation aids, and when following new routes they had not previously driven using paper directions or an electronic nav...
    File Type:
    Filetype[PDF - 2.62 MB]
    Added:
    01/08/2019
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