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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 7961 - 7980 of 36151 results
  • Mobile Air Quality Monitoring for Local HighResolution Characterization of VehicleSourced Criteria Pollutant
    Mobile Air Quality Monitoring for Local High-Resolution Characterization of Vehicle-Sourced Criteria Pollutant
    May, Andrew A. ;
    Mishalani, Rabi G.
    2017-06-19 | PDF
    Transportation-related emissions are a major source of air pollution in many urban areas. Human exposure to this pollution is related to their proximity to major roadways, yet federal and state Environmental Protection Agencies (EPAs) conduct regulatory air quality monitoring at sparsely-distributed, fixed-site stations. While these distributed sta ...
  • Stability of sonic boom metrics regarding signature distortions from atmospheric turbulence
    Stability of sonic boom metrics regarding signature distortions from atmospheric turbulence
    Doebler, William J. ;
    Sparrow, Victor W.
    2017-06-19 | PDF
    The degree of insensitivity to atmospheric turbulence was evaluated for five metrics (A-, B-, E-weighted sound exposure level, Stevens Mark VII Perceived Level, and NASA's Indoor Sonic Boom Annoyance Predictor) that correlate to human annoyance from sonic booms. Eight N-wave shaped sonic booms from NASA's FaINT experiment and five simulated "low-bo ...
  • Integration of the incident command system ICS protocol for effective coordination of multiagency response to traffic incidents final report
    Integration of the incident command system (ICS) protocol for effective coordination of multi-agency response to traffic incidents : final report.
    Ogle, Jennifer H ;
    Chowdhury, Ronnie
    2017-06-13 | PDF
    In recent years, there has been an increased focus on Traffic Incident Management (TIM) andincorporation of the Incident Command System (ICS) to reduce traffic congestion on the nation'sInterstates. In fact, studies show that for every minute a freeway lane is blocked due to an incident,there is a corresponding time of four minutes of travel delay, ...
  • Development of a queue warning system utilizing ATM infrastructure system development and fieldtesting final report
    Development of a queue warning system utilizing ATM infrastructure system development and field-testing : final report.
    Hourdos, John ;
    Liu, Zhejun
    2017-06-13 | PDF
    MnDOT has already deployed an extensive infrastructure for Active Traffic Management (ATM) on I-35W and I-94 with plans to expand onother segments of the Twin Cities freeway network. The ATM system includes intelligent lane control signals (ILCS) spaced every half mileover every lane to warn motorists of incidents or hazards on the roadway ahead. T ...
  • Bridge waterproofing details phase 2
    Bridge waterproofing details : phase 2.
    Yu, Qiang
    2017-06-12 | PDF
    The objective of this research is to provide the implementation roadmaps for the recommendations proposed in Phase I to enhancethe capability and robustness of the current waterproofing system in District 10-0 of PennDOT. Built upon the results obtained in thenumerical simulations and experimental characterizations, the research team developed the ...
  • The effect of regulatory requirements and intervening groups on road construction in South Carolina
    The effect of regulatory requirements and intervening groups on road construction in South Carolina.
    Geidel, Gwendelyn ;
    Smith, Caitlin
    2017-06-09 | PDF
    The primary objective of this study was to assess the impact of temporal delays to SCDOT road projects caused by legalchallenges brought by individuals and external entities with environmental-based concerns. Specifically, the focus was toassess the use of the automatic stay provision along with the associated contested case in the Administrative L ...
  • Electric Vehicles Impacts on Transportation Revenue
    Electric Vehicles : Impacts on Transportation Revenue
    Gao, Song ;
    Plotnikov, Michael
    2017-06-07 | PDF
    The maintenance of transportation infrastructures has traditionally been funded from federal and state taxes collected by the state from fossil fuel distributors, included into fuel price at the pump and ultimately paid by all internal combustion engine (ICE) vehicle road users. Zero emission vehicles (ZEVs), use alternative energy sources complete ...
  • Driving After Distal Radius Fractures
    Driving After Distal Radius Fractures
    Caldwell, Lindsey ;
    Brown, Timothy
    2017-06-06 | PDF
    Distal radius fractures (DRF) are a common orthopaedic injury, affecting over 640,000 people per year in the United States, and may account for 2.5% of emergency department visits. The treatment for DRF may be operative or non-operative, but both treatment options require a period of immobilization to allow healing. Pain, stiffness, and weakness ar ...
  • Applying successfully proven measures in roadway safety to reduce harmful collisions in SC
    Applying successfully proven measures in roadway safety to reduce harmful collisions in SC.
    Ogle, Jennifer H ;
    Sarasua, Wayne
    2017-06-06 | PDF
    The overall goal of this research was to identify proven successful safety programs used in other states and assess the potential for safety improvement if similar programs were implemented in South Carolina. The research team not only sought out engineering solutions, but also expanded the search to include programs for enforcement, education, lic ...
  • WheelRail Interaction Fundamentals
    Wheel-Rail Interaction Fundamentals
    Oldknow, Kevin
    2017-06-06 | PDF
    The Wheel-Rail Interaction Fundamentals presentation, delivered by Kevin Oldknow, provides a comprehensive technical overview of the key physical principles governing the interaction between train wheels and railway tracks. Structured across three parts, the presentation explores (1) the anatomy of the wheel/rail interface, contact patch geometry, ...
  • Develop and teach graduate course on rail terminal design and operations
    Develop and teach graduate course on rail terminal design and operations.
    Dick, C. T.
    2017-06-02 | PDF
    This project planned and developed the course material for CEE 598 RTD, and taught it as a fullsemester course open to graduate students at UIUC in Fall 2014. Students enrolled in the class participated in lecture-discussion sessions, twice a week for 1-1/2 hours, throughout the semester.Students spent additional time outside the lectures coordinat ...
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    CTM-Based Optimal Signal Control Strategies in Urban Networks
    Jin, Wen-Long ;
    Gan, Qijian
    2017-06-02 | PDF
    This research introduces a novel analytical framework in deriving invariant averaged models for signalized intersections in urban networks, using the capability of the cell transmission model (CTM) to capture the detailed traffic dynamics such as the formation, propagation, and dissipation of congestion arising at network junctions. Generally, the ...
  • CrossCountry Comparison of Aircraft NoiseInduced Sleep Disturbance
    Cross-Country Comparison of Aircraft Noise-Induced Sleep Disturbance
    McGuire, Sarah ;
    Müller, Uwe
    2017-06-01 | PDF
    To inform policy, exposure-response relationships for aircraft noise-induced sleep disturbance are needed. Due to different nighttime airport operational patterns it has been unknown whether results from individual studies can be applied to other airports. In addition, there may be inter-cultural differences that affect an individual’s sensitivity ...
  • Measuring the Impacts of Social Media on Advancing Public Transit
    Measuring the Impacts of Social Media on Advancing Public Transit
    Liu, Jenny Hsing-I ;
    Ban, Xuegang (Jeff)
    2017-06-01 | PDF
    This project is a collaboration between Portland State University (PSU) and the Center for Infrastructure Transportation & Environment (CITE) at Rensselaer Polytechnic Institute seeking to develop performance measures for assessing the impacts of social media on promoting public transit. Revolutionary changes have occurred in the communication land ...
  • Roller Compacted Concrete over Soil Cement under Accelerated Loading
    Roller Compacted Concrete over Soil Cement under Accelerated Loading
    Wu, Zhong ;
    Rupnow, Tyson
    2017-06-01 | PDF
    In this study, six full-scale accelerated pavement testing (APT) pavement sections, each 71.7 ft. long and 13 ft. wide, were constructed at the (Louisiana Transportation Research Center's) LTRC’s Pavement Research Facility (PRF) using normal pavement construction procedures. The test sections include three roller compacted concrete (RCC) thicknesse ...
  • Tack Coat Performance and Materials Study
    Tack Coat Performance and Materials Study
    Wilson, Bryan ;
    Chowdhury, Arif
    2017-06-01 | PDF
    A good bond provided by a tack coat can improve performance of asphalt overlays. The objectives of this research were: (1) develop a method for testing the bond between pavement layers; (2) evaluate the bond performance and predict long-term performance of different tack coat strategies; (3) assess the minimum bond to achieve acceptable performance ...
    Supporting Files
  • Distributed Simulation to Support Driving Safety Research
    Distributed Simulation to Support Driving Safety Research
    Schwarz, Chris ;
    Heitbrink, David
    2017-06-01 | PDF
    Over half of all crashes involve two or more vehicles. While driving simulation provides an effective way to study many crash scenarios in a well-controlled environment, it cannot capture the complex dynamics between two human drivers in the seconds leading up to a multi-car crash or safety-critical event. Examples of multi-driver simulation extend ...
  • Effective PostConstruction Best Management Practices BMPs to Infiltrate and Retain Stormwater Runoff
    Effective Post-Construction Best Management Practices (BMPs) to Infiltrate and Retain Stormwater Runoff
    Osouli, Abdolrzea ;
    Grinter, Mark
    2017-06-01 | PDF
    Performance analyses of newly constructed linear BMPs in retaining stormwater run-off from 1 in. precipitation in post-construction highway applications and urban areas were conducted using numerical simulations and field observation. A series of simulations were conducted using an idealized catchment on a four-lane highway located on sites with so ...
  • pedestrians
    pedestrians?
    Kearney, Joseph K. ;
    Plumert, Jodie M.
    2017-06-01 | PDF
    Pedestrian injuries and deaths caused by collisions with motor vehicles are a majorhealth problem in the U.S. [1]. In 2013 alone, 4,735 pedestrians were killed and 66,000were injured in traffic crashes. Both field observations and controlled experiments indicatethat distraction from mobile device use is a significant risk factor for pedestrian inju ...
  • Global road safety online course development
    Global road safety online course development.
    Hamann, Cara J. ;
    Peek-Asa, Corinne
    2017-06-01 | PDF
    The Global Road Safety Online Curriculum Development project involved the adaptation of in-person classroom materials and development of new materials to be used in an online setting. A short-course format was selected to pilot the course, and four two-hour sessions were created. Zoom video conferencing was used for the virtual classroom platform, ...
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