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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 6781 - 6800 of 36104 results
  • Comparing Performance of Fulldepth Asphalt Pavements and Aggregate Base Pavements in NC
    Comparing Performance of Full-depth Asphalt Pavements and Aggregate Base Pavements in NC
    Kim, Y Richard ;
    Castorena, Cassie
    2018-06-18 | PDF
    This report presents the findings from the performance analysis of two types of pavements commonly used in North Carolina, aggregate base course (ABC) pavements and full-depth asphalt (FDA) pavements. The main objective of this research project is to examine the North Carolina Department of Transportation's (NCDOT’s) assumptions that the required m ...
  • NDOT Permitting Fees
    NDOT Permitting Fees
    Khattak, Aemal ;
    Iranitalab, Amirfarrokh
    2018-06-15 | PDF
    In this study, the objective of assessing the permit fees of overweight vehicles in Nebraska along with a review of surrounding Midwestern states was carried out in six stages. The first stage included a TAC meeting and a literature review. The second stage was the examination of the Nebraska permit process and structure utilizing the Nebraska Depa ...
  • Development of a Quality Management Plan for Pavement Condition Data in Connecticut
    Development of a Quality Management Plan for Pavement Condition Data in Connecticut
    Larsen, Don A ;
    Mahoney, James
    2018-06-15 | PDF
    The research team from the Connecticut Transportation Institute at the University of Connecticut performed this project for the Connecticut Department of Transportation (CTDOT). The major results of this study were a Data Quality Management Plan and a comprehensive procedures manual providing a road map and steps to establish a process for quality ...
  • The Future of Autonomous Vehicles Lessons from the Literature on Technology Adoption
    The Future of Autonomous Vehicles: Lessons from the Literature on Technology Adoption
    Gordon, Ben ;
    Kaplan, Scott
    2018-06-14 | PDF
    Introduction and adoption of autonomous vehicles (AVs) will likely reshape the transportation system and many economic activities. The economic literature on technology adoption can provide lessons on the diffusion of AVs as well as the social and economic impacts. The authors rely on the threshold model of diffusion, where heterogeneous agents mak ...
  • The Influence of Aggressive Driving Behavior and Impulsiveness on Traffic Accidents
    The Influence of Aggressive Driving Behavior and Impulsiveness on Traffic Accidents
    Antić, Boris ;
    Čabarkapa, Milanko
    2018-06-09 | PDF
    Findings from numerous studies pointed out the importance of studying certain forms of behavior and personality traits in order to understand propensity to commit unsafe maneuvers in traffic. The present study aims at evaluating the potential contribution of impulsiveness and aggressive driving in the prediction of traffic accidents, and at investi ...
  • WebSurveyDataandCommuterModeChoiceAnalysis UsingArtificialNeuralNetwork
    Web Survey Data and Commuter Mode Choice Analysis Using Artificial Neural Network
    Srivastava, Minal ;
    Ravi Sekhar, Chalumuri
    2018-06-07 | PDF
    Dealing with the present bottlenecks as well as creating long lasting and sustainable transport systems has been the greatest challenge of urban transport planning. Calibrating the present need and forecasting the future demand is the underlying agenda of travel demand forecasting. Mode choice forms an integral part of this process as it gives a co ...
  • Responder Study Phase 3 Testing and Support
    Responder Study Phase 3: Testing and Support
    Donecker, Stephen M. ;
    Yen, Kin S.
    2018-06-07 | PDF
    This report documents the research project “Responder Study Phase 3: Testing and Support.” The goal of the research was to have a working Responder system that is deployable by the end of the project. Responder is a communication tool that integrates hardware, software, and communications to provide incident responders—particularly those in rural a ...
  • Identifying Potential Workzone Countermeasures Using ConnectedVehicle and Driving Data
    Identifying Potential Workzone Countermeasures Using Connected-Vehicle and Driving Data
    Misra, Aditi ;
    Leslie, Andrew
    2018-06-06 | PDF
    Work zones present an ongoing safety challenge to the road safety community. Traffic management in a work zone is done through movable, temporary elements, and the novelty and complexity of the situation can challenge even attentive drivers This project looked into identifying workzone countermeasures that might be implemented using V2I and I2V com ...
  • Roadway Lightings Impact on Altering Soybean Growth Volume 2 LED versus HPS Color Spectral Impact
    Roadway Lighting’s Impact on Altering Soybean Growth, Volume 2 : LED versus HPS Color Spectral Impact
    Palmer, Mathew ;
    Gibbons, Ronald
    2018-06-01 | PDF
    The impact of roadway lighting on soybean plant growth and development, was measured in situ at three locations in the state of Illinois. These locations were situated in close proximity of each other for the purpose of evaluating whether there was a difference in the soy response to HPS roadway lighting, versus soy lit by a specific model of 4,000 ...
  • WildlifeCrossing Mitigation Effectiveness with Traffic Noise and Light
    Wildlife-Crossing Mitigation Effectiveness with Traffic Noise and Light
    Shilling, Fraser ;
    Collins, Amy
    2018-06-01 | PDF
    Wildlife crossing structures (WCS) over or under highways have been proposed as a solution for road-related habitat fragmentation and wildlife collisions. To assure the efficacy of WCS, road-related negative impacts that could cause animals to avoid WCS, such as noise and light, need to be considered. Human-sourced noise can affect habitat occupanc ...
  • Exploring Strategies to Improve Mobility and Safety on Roadway Segments in Urban Areas
    Exploring Strategies to Improve Mobility and Safety on Roadway Segments in Urban Areas
    Arhin, Stephen A.
    2018-06-01 | PDF
    Several strategies have been proposed and developed to alleviate the congestion and throughput problem usually experienced in urban areas. These strategies include the use of Intelligent Transportation Systems, signal re-timing and signal coordination, among others. In urban areas, there are often combinations of signalized and un-signalized inters ...
    Supporting Files
  • StateofthePractice in Chip Seal Slurry Seal Micro Surfacing and Thin Lift Asphalt Overlay Construction Quality Assurance
    State-of-the-Practice in Chip Seal, Slurry Seal, Micro Surfacing, and Thin Lift Asphalt Overlay Construction Quality Assurance
    Hajj, Elie ;
    Graham, Lauren
    2018-06-01 | PDF
    This project summarizes current quality assurance “best” practices used by selected public agencies for constructing successful Chip Seal, Slurry Seal, Micro Surfacing and Thin Lift Asphalt Overlay pavement preventive maintenance treatments. These practices are considered “best” practices, as such practices, when adhered to, lead to long-lasting an ...
  • Evaluation of Otta Seal Surfacing for LowVolume Roads in Iowa
    Evaluation of Otta Seal Surfacing for Low-Volume Roads in Iowa
    Ceylan, Halil ;
    Kim, Sunghwan
    2018-06-01 | PDF
    Low-volume roads represent a significant proportion of transportation infrastructure, and the cost of maintaining low-volume roads is quite high for secondary road departments. Traditional bituminous surface treatments (BSTS) for asphalt pavements require high-quality materials and specialized expertise, but Otta seal surfaces can be constructed us ...
    Supporting Files
  • Load Rating of Existing Continuous Stringers on Louisianas Bridges Research Project Capsule 184ST
    Load Rating of Existing Continuous Stringers on Louisiana’s Bridges: Research Project Capsule [18–4ST]
    Sun, C. Shawn
    2018-06-01 | PDF
    In accordance with Louisiana Department of Transportation and Development (DOTD) policies and guidelines for bridge rating and evaluation, all bridges shall be rated using the Load and Resistance Factor Rating (LRFR) method as specified by the American Association of State Highway and Transportation Officials (AASHTO). Both local buckling and later ...
  • Evaluation of Innovative Approaches to Curve Delineation for TwoLane Rural Roads
    Evaluation of Innovative Approaches to Curve Delineation for Two-Lane Rural Roads
    Gibbons, Ronald B. ;
    Medina Flintsch, Alejandra
    2018-06-01 | PDF
    Run-off-road crashes are a major problem for rural roads. These roads tend to be unlit, and drivers may have difficulty seeing or correctly predicting the curvature of horizontal curves. This leads to vehicles entering horizontal curves at speeds that are too high, which can often lead to vehicles running off the roadway. This study was designed to ...
  • Local Access Management Regulations
    Local Access Management Regulations
    Jin, Peter J. ;
    Deka, Devajyoti
    2018-06-01 | PDF
    The primary objective of this research is to identify and recommend strategies, tools, and guidelines to facilitate access management on local (i.e., county and municipal) roads intersecting and/or impacting state highways in New Jersey. State of New Jersey has an access management code that applies to state highways, but it does not apply to local ...
  • Balanced Design of Asphalt Mixtures
    Balanced Design of Asphalt Mixtures
    Newcomb, David ;
    Zhou, Fujie
    2018-06-01 | PDF
    A balanced mix design (BMD) sets a maximum asphalt content based on the rutting criterion and a minimum asphalt content based on cracking criterion. This project developed a BMD framework for the Minnesota Department of Transportation (MnDOT) and used it to evaluate materials from four Minnesota projects using the Illinois Flexibility Index, the ID ...
  • Evaluation of Warm Mix Asphalt Technology in Flexible Pavements
    Evaluation of Warm Mix Asphalt Technology in Flexible Pavements
    Mohammad, Louay ;
    Raghavendra, Amar
    2018-06-01 | PDF
    Warm mix asphalt (WMA) describes various technologies that allow asphalt mixtures to be produced at lower temperatures as compared to hot mix asphalt (HMA). WMA technologies also offer improvements in workability, cost, and environmental sustainability such as reduced fuel usage, greenhouse gas emissions, and wear and tear at plants, while enhancin ...
  • Update of Traffic Design Manual
    Update of Traffic Design Manual
    Kohls, Airton G
    2018-06-01 | PDF
    The Tennessee Department of Transportation (TDOT) Traffic Design Manual provides information on Traffic Signal Design, Signing and Pavement Markings, Roadway Lighting and Intelligent Transportation Systems. While the chapters on Signing and Pavement Markings, as well as the chapter on Roadway Lighting, have been recently revised, the Traffic Signal ...
  • Operational and Economical Analysis of Access Management
    Operational and Economical Analysis of Access Management
    Chowdhury, Mashrur ;
    Huynh, Nathan N.
    2018-06-01 | PDF
    The primary goal of this study was to analyze the operational and economic effects of access management strategies in South Carolina. This study investigated existing access management strategies practiced by different U.S. states through a review of literature, a nationwide survey, and a follow-up phone interview. Four access management strategies ...
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