The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations.
Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.
Policy literature discusses the intersection of media, public opinion, and politics, and their impact on public policy. This study examines if media reports regarding bicyclist and pedestrian crashes appear important in shaping the policy narrative that defines the event. The research seeks to understand the effects of policy narratives on transpor
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Technological advances in unmanned aerial vehicle (UAV) technologies continue to enable these tools to become easier to use, more economical, and applicable for transportation-related operations, maintenance, and asset management while also increasing safety and decreasing cost. This Phase 2 project continued to test and evaluate five main UAV plat
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The U.S. Department of Transportation (DOT) has recently announced its decision to move on with Connected Vehicle Initiative. This requires future vehicles to be equipped with sensors and communication devices to enable vehicle-to-vehicle and vehicle-to-environment communication for improved safety. As large-scale applications of connected vehicles
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The work of the Marine Engine Testing and Emissions Laboratory (METEL) at Maine Maritime Academy (MMA) in the area of emulsion biofuels is presented. An overview of METEL is discussed including its unique capabilities in the fabrication, characterization and engine testing of emulsion fuels. The engine emissions test facilities and protocols are di
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The Federal Aviation Administration (FAA) NextGen Human Factors Division commissioned this research to identify and share lessons learned from two air traffic control facilities that were “early adopters” of Established on Required Navigation Performance (EoR) (RNP) procedures. Seattle-Tacoma International Airport and Denver International Airport w
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This report provides a synthesis of Automated Video Incident Detection (AVID) systems as well as a range of other technologies available for Automated Incident Detection (AID) and more general traffic system monitoring. In this synthesis, the authors consider the impacts of big data and machine learning techniques being introduced due to the accele
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This publication is a report of the transportation research, technology transfer, education, and training activities of the Louisiana Transportation Research Center for July 1, 2017–June 30, 2018. The center is sponsored jointly by the Louisiana Department of Transportation and Development and Louisiana State University.
Concerns over fuel cost volatility, climate change and air pollution has motivated a shift to cleaner and more efficient combustion technologies for marine and stationary power production. Numerous technologies have emerged promising to address these concerns but adoption has been limited by scalability or technical barriers for robust commercial o
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Since 2012, MDOT has been leading national efforts to modernize design development with 3D modeling. Early focus on roadway projects yielded streamlined plan production and digital data for construction. As MDOT pivots to 3D model-centric design, national and international movements gain traction to extend the value of 3D models to bridges. Researc
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This report is a summary of an analysis conducted using a subset of data collected from a survey designed/executed by an external consultant about rest area signs. The request was to analyze these items: The proportion who saw the signs; The proportion who felt signs affected their decision on whether or not to stop; The proportion who found signs
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Toll managed lanes are expressway lanes where tolls are used--often in combination with preferred access for high occupancy vehicles and other special traffic management techniques-to improve the highway’s capacity, speed or reliability. Such lanes, and particularly a variant called High Occupancy Toll (HOT) lanes, have become popular with transpor
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It is now common for transit operators to provide real-time information (RTI) to passengers about the location or predicted arrival times of transit vehicles. The Metropolitan Transportation Authority (MTA) in New York City has recently made RTI available for most of the subway, which is the largest urban heavy rail system in the United States. In
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Rail stations are essential components of rail systems. While at a fundamental level they offer access points to the means of movement, rail stations truly serve as connections between the infrastructure system and the surrounding environment: the urban fabric, the political system and the economic system, among others. The final research conducted
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The Wyoming Department of Transportation’s (WYDOT) Connected Vehicle (CV) Pilot Deployment Program is intended to develop a suite of applications that utilize vehicle to infrastructure (V2I) and vehicle to vehicle (V2V) communication technology to reduce the impact of adverse weather on truck travel in the I-80 corridor. These applications support
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Over the past several years, The Hernando Desoto Bridge carrying I-40 across the Mississippi river at Memphis has been the scene of an intensive strong motion monitoring project, involving the installation of numerous traditional and several non-traditional forms of instrumentation designed to characterize the response of the structure to shaking f
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MDOT has been exploring how tablet computers, smartphones and wireless data systems can make bridge inspection safer and more efficient. Researchers developed an application that inspectors can use in the field to record location-specific observations on a 3-D model of a bridge using a mobile device.
To determine the effect of horizontal curvature, vertical curvature, and guardrails on driver passing behavior, a combination of field data collection and a driving simulator in a controlled environment were used. Field sites were identified along areas of concern to the Alaska Department of Transportation and Public Facilities: 1) Parks Highway (M
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The objective of this study was to perform a data-driven, comprehensive analysis of multi-modal freight system capacity to understand the capacity of the system overall and be able to simulate and analyze impacts of disruptions to the system. To accomplish this, a multi-modal network of highway and rail networks in the middle Tennessee region was c
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Jing Dong (orcid.org/0000-0002-7304-8430); Liang Hu (orcid.org/0000-0001-6351-8542);Chaoru Lu (orcid.org/0000-0001-8418-7658);Connected and autonomous vehicle (CAV) technologies are likely to be gradually implemented over time and in a traffic environment consisting of a significant share of alternative fuel vehicles, such as flexible-fuel, plug-in
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This report presents an assessment of the Freight System Efficiency metric (FSE) which is being used to measure progress towards the California Sustainable Freight Action Plan (CSFAP) 2030 target of a 25% increase in freight system efficiency. We describe the data and methods used to generate FSE, and consider the extent to which the components of
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