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The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations. Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.

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Showing 7001 - 7020 of 36104 results
  • Development of a Simulation Test Bed for Connected Vehicles using the LSU Driving Simulator
    Development of a Simulation Test Bed for Connected Vehicles using the LSU Driving Simulator
    Osman, Osama A. ;
    Ishak, Sherif
    2018-04-01 | PDF
    Connected vehicles (CV) technology has been acknowledged to have operational benefits in terms of reducing travel times and delays for the traveling public, as well as lessening the environmental impact in terms of reducing vehicle emissions and air pollution. To fully assess reliability and potential benefi ts of CV technology,the use of test beds ...
    Supporting Files
  • Performance and Traffic Flow
    Performance and Traffic Flow
    Cho, In Ho ;
    Chen, An
    2018-04-01 | PDF
    Consistent efforts with dense sensor deployment and data gathering processes for bridge big data have accumulated profound information regarding bridge performance, associated environments, and traffic flows. However, direct applications of bridge big data to long-term decision-making processes are hampered by big data-related challenges, including ...
  • Networks
    Networks
    Zu, Yue ;
    Liu, Chenhui
    2018-04-01 | PDF
    Current technology in traffic control is limited to a centralized approach that has not paid appropriate attention to efficiency of fuel consumption and is subject to the scale of transportation networks. This project proposes a transformative approach to the development of a distributed framework to reduce fuel consumption and travel time through ...
    Supporting Files
  • Safe and Accessible Pedestrian Facilities Inventory Model SAPFIM Development
    Safe and Accessible Pedestrian Facilities Inventory Model (SAPFIM): Development
    Cevallos, Fabian
    2018-04-01 | PDF
    The main objective of this scope of work is to develop the Safe and Accessible Pedestrian Facilities Inventory Model (SAPFIM) tool: a web-based software application that local agencies can use for the collection, storage, querying, and reporting of pedestrian facilities. The Lehman Center for Transportation Research (LCTR) at Florida International ...
  • Overcoming Barriers for the WideScale Adoption of Standardized RealTime Transit Information
    Overcoming Barriers for the Wide-Scale Adoption of Standardized Real-Time Transit Information
    Barbeau, Sean J.
    2018-04-01 | PDF
    Real-time transit information has many benefits to transit riders and agencies, including shorter perceived and actual wait times, a lower learning curve for new riders, an increased feeling of safety, and increased ridership. In the last few years, a real-time complement to the General Transit Feed Specification (GTFS) format, GTFS-realtime, has e ...
  • Joint Removal Implications Thermal Analysis and LifeCycle Cost
    Joint Removal Implications : Thermal Analysis and Life-Cycle Cost
    Mahmoud, Hussam ;
    Atadero, Rebecca Anne
    2018-04-01 | PDF
    Deck joints are causing significant bridge deterioration and maintenance problems for Departments of Transportation (DOTs). Colorado State University researchers partnered with the Colorado DOT to analyze the effects of temperature change and thermal gradients on deck joint movement and provide recommendations regarding deck joint elimination. Typi ...
  • ECONOMIC IMPACT ANALYSIS OF GDOTS SHORT LINE RAILROADS
    ECONOMIC IMPACT ANALYSIS OF GDOT’S SHORT LINE RAILROADS
    McCarthy, Patrick ;
    Zhai, Zhe
    2018-04-01 | PDF
    Short line railroads are critical to Georgia’s transportation infrastructure and support the efficient movement of goods into and out of the State. Twenty-nine short line railroads operate in Georgia, six of which operate either partially or totally on 596 miles of rail track that the Georgia Department of Transportation (GDOT) owns. Based on the B ...
  • Travel Effects and Associated Greenhouse Gas Emissions of Automated Vehicles
    Travel Effects and Associated Greenhouse Gas Emissions of Automated Vehicles
    Rodier, Caroline Jane
    2018-04-01 | PDF
    In much the same way that the automobile disrupted horse and cart transportation in the 20th century, automated vehicles hold the potential to disrupt our current system of transportation and the fabric of our built environment in the 21st century. Experts predict that vehicles could be fully automated by as early as 2025 or as late as 2035 (Underw ...
  • A Novel Collision Avoidance System for a Bicycle
    A Novel Collision Avoidance System for a Bicycle
    Rajamani, Rajesh ;
    Jeon, Woongsun
    2018-04-01 | PDF
    This project focuses on development of a sensing and estimation system for a bicycle to accurately detect and track vehicles for two types of car-bicycle collisions. The two types of collisions considered are collisions from rear vehicles and collisions from right-turning vehicles at a traffic intersection. The collision detection system on a bicyc ...
  • Traffic Safety Facts 2016 Data RuralUrban Comparison of Traffic Fatalities
    Traffic Safety Facts 2016 Data: Rural/Urban Comparison of Traffic Fatalities
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2018-04-01 | PDF
    For this fact sheet, rural and urban boundaries are determined by the State highway departments and approved by the Federal Highway Administration. The State highway departments use the U.S. Census Bureau’s rural and urban boundaries. In this fact sheet for 2016, the information about rural and urban traffic fatalities is presented as follows : Ove ...
  • The Effects of Ride Hailing Services on Travel and Associated Greenhouse Gas Emissions
    The Effects of Ride Hailing Services on Travel and Associated Greenhouse Gas Emissions
    Rodier, Caroline Jane
    2018-04-01 | PDF
    Towards the close of the first decade of the 21st Century, ride-hailing services began to enter the transportation market through smart phone applications that allowed consumers to hail and pay for a ride from drivers using their own vehicle. The information and communication technologies used by these platforms allow for more reliable service, to ...
  • Reusable Instrumented Test Pile Phase 2
    Reusable Instrumented Test Pile Phase 2
    DeJong, Jason T
    2018-04-01 | PDF
    The performance and constructability of pile foundations in coarse granular soils contains significant uncertainty due to challenges in site characterization and uncertainty in pile prediction methods. The Reusable Test Pile idea was conceived as a large diameter instrumented test pile that could be deployed during the site investigation phase of a ...
  • Efficient Pavement Thickness Design for Indiana
    Efficient Pavement Thickness Design for Indiana
    Nantung, Tommy ;
    Lee, Jusang
    2018-04-01 | PDF
    Over the past several decades, a dramatic increase in traffic volume, axle loads, and tire pressure has led to rapidly deteriorated pavements in the United States. Several types of pavement surface distresses have been noted by many state agencies across the country. Among these distresses, permanent deformation, also known as rutting, is one of th ...
  • Michigans Traffic Incident Management Effort Progress and Future Vision
    Michigan’s Traffic Incident Management Effort: Progress and Future Vision
    Michigan. Dept. of Transportation
    2018-04-01 | PDF
    Michigan’s Traffic Incident Management (TIM) Action Team, a part of Michigan’s Strategic Highway Safety Plan (SHSP), established statewide goals in 2012 that address TIM education and training, and public awareness of safety laws concerning driver responsibilities in traffic incidents. In this research project, researchers assessed progress made to ...
  • Precast Prestressed Concrete Bent Caps Volume 2 Design Recommendations and Design Examples
    Precast, Prestressed Concrete Bent Caps : Volume 2, Design Recommendations and Design Examples
    Birely, Anna C. ;
    Mander, John B.
    2018-04-01 | PDF
    Recommendations for design of pretensioned bent caps are developed based on the findings of full-scale experimental tests of bent cap subassemblages. Companion examples are provided to demonstrate implementation of the design recommendations. First, recommendations are made for converting existing reinforced concrete bent cap designs to pretensione ...
  • Pavement Deicing Using Hydronic Heat Exchange Loops in The Base Layer Experimental and Modeling Feasibility Study
    Pavement Deicing Using Hydronic Heat Exchange Loops in The Base Layer: Experimental and Modeling Feasibility Study
    Abdelaziz, Sherif L. ;
    Longtin, Jon
    2018-04-01 | PDF
    Extreme weather conditions play a vital factor in the deterioration of the national transportation infrastructure including pavements. Freezing and thawing of the pavement sections is one of the most critical processes resulting from these extreme weather conditions. In addition to negatively impacting the structural integrity of the pavement layer ...
  • Technology Today Volume 32 Issue 3 Spring 2018
    Technology Today, Volume 32, Issue 3, Spring 2018
    Louisiana Transportation Research Center
    2018-04-01 | PDF
    Technology Today is a quarterly publication of the Louisiana Transportation Research Center, administered jointly by the Louisiana Department of Transportation and Development and Louisiana State University.
  • Further Assessments of Safe Quick Clearance Strategies Phase II
    Further Assessments of Safe, Quick Clearance Strategies: Phase II
    Rensel, Eric ;
    Yorks, Charles
    2018-04-01 | PDF
    The Michigan TIM Action Team was created as part of Michigan’s Strategic Highway Safety Program (SHSP) and reports to the Governor’s Traffic Safety Advisory Commission (GTSAC). Progress towards the Action Team’s goals were the subject of this research project. Research included responder workshops, literature reviews, leadership visioning, and a ne ...
  • Tennessee SmartPark Pilot
    Tennessee SmartPark Pilot
    Golias, M. ;
    Misha, S.
    2018-04-01 | PDF
    The technology that SmartPark project uses includes overhead laser scanners, side-mounted laser scanners, and light curtains (CURs). The laser scanners and CURs are able to produce two-dimensional vehicle profiles, showing height (or width) and length. The detectors use laser beams to detect the presence of a vehicle. When a vehicle passes beneath ...
  • Durable Recycled Superpave Mixes in Kansas
    Durable Recycled Superpave Mixes in Kansas
    Gao, Ye ;
    Islam, Shuvo
    2018-04-01 | PDF
    The use of economical and environment-friendly recycled asphalt materials has become increasingly popular for asphalt pavement construction. In general, reclaimed asphalt pavement (RAP) and recycled asphalt shingles (RAS) are used in hot-mix asphalt (HMA). However, as higher amounts of RAP/RAS material are being promoted, the potential for prematur ...
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