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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 7881 - 7900 of 36151 results
  • Design and Evaluation of Scour for Bridges Using HEC18 Volume 2 of 3
    Design and Evaluation of Scour for Bridges Using HEC-18 (Volume 2 of 3).
    Schuring, John R. ;
    Dresnack, Robert
    2017-07-04 | PDF
    The overall objective of this research is the development of a new approach for evaluating bridge scour for New Jersey's bridges on non-tidal waterways. The study commenced with a web-based survey of scour practice within the U.S. and a literature review of predictive scour models. The major project deliverable is a new Scour Evaluation Model (SEM) ...
  • Technology Today Volume 31 Issue 4 Summer 2017
    Technology Today, Volume 31, Issue 4, Summer 2017.
    Louisiana Transportation Research Center
    2017-07-04 | PDF
    No Description
  • Analysis of local bus markets volume III travel characteristics final report
    Analysis of local bus markets : volume III – travel characteristics : final report.
    Deka, Devajyoti
    2017-07-04 | PDF
    Despite having an extensive network of public transit, traffic congestion and transportation-related greenhouse gas (GHG) emissions are significant concerns in New Jersey. This research hypothesizes that traffic congestion and air quality concerns in the state would be much greater in the absence of public transit. With this hypothesis, the study e ...
  • Ranking northeast Illinois new starts transit potential expansion for Metra and CTA
    Ranking northeast Illinois new starts transit potential expansion for Metra and CTA.
    Sriraj, P. S. ;
    Snow, Jordan
    2017-07-04 | PDF
    Large scale public investment initiatives are always subject to tremendous scrutiny and are looked at through the prism of multiple stakeholders and constituents. It is thus imperative to ensure a level of transparency when it comes to the decision making process associated with project selection, prioritization, and ranking. This report reviews th ...
  • Design and Evaluation of Scour for Bridges Using HEC18 Volume 1 of 3
    Design and Evaluation of Scour for Bridges Using HEC-18 (Volume 1 of 3).
    Schuring, John R. ;
    Dresnack, Robert
    2017-07-04 | PDF
    The overall objective of this research is the development of a new approach for evaluating bridge scour for New Jersey's bridges on non-tidal waterways. The study commenced with a web-based survey of scour practice within the U.S. and a literature review of predictive scour models. The major project deliverable is a new Scour Evaluation Model (SEM) ...
  • Analysis modeling and simulation AMS testbed development and evaluation to support dynamic mobility applications DMA and active transportation and demand management ATDM programs evaluation summary for ATDM program
    Analysis, modeling, and simulation (AMS) testbed development and evaluation to support dynamic mobility applications (DMA) and active transportation and demand management (ATDM) programs — evaluation summary for ATDM program.
    Yelchuru, Balaji ;
    Kamalanathsharma, Raj
    2017-07-04 | PDF
    The primary objective of this project is to develop multiple simulation testbeds/transportation models to evaluate the impacts of Dynamic Mobility Application (DMA) connected vehicle applications and Active Transportation and Dynamic management (ATDM) strategies. While the project aims at evaluating both DMA applications and ATDM strategies, the pr ...
  • Design and Evaluation of Scour for Bridges Using HEC18 Volume 3 of 3
    Design and Evaluation of Scour for Bridges Using HEC-18 (Volume 3 of 3).
    Schuring, John R. ;
    Dresnack, Robert
    2017-07-04 | PDF
    The overall objective of this research is the development of a new approach for evaluating bridge scour for New Jersey's bridges on non-tidal waterways. The study commenced with a web-based survey of scour practice within the U.S. and a literature review of predictive scour models. The major project deliverable is a new Scour Evaluation Model (SEM) ...
  • Midwest States Accelerated Testing Program Well Bonded Superpave Overlays on Hot Mix Asphalt
    Midwest States Accelerated Testing Program: Well Bonded Superpave Overlays on Hot Mix Asphalt
    Mealiff, Daniel D. ;
    Wu, Xindong
    2017-07-04 | PDF
    The construction of hot-mix asphalt (HMA) overlay or multiple lifts involves spraying tack coat onto the existing surface to obtain a good bond and to ensure that the multiple pavement layers behave monolithically. Insufficient tack coat application has been linked to premature cracking failure. The Kansas Department of Transportation (KDOT) regula ...
  • Analysis of local bus markets volume I methodology and findings final report
    Analysis of local bus markets : volume I – methodology and findings : final report.
    Deka, Devajyoti
    2017-07-04 | PDF
    Despite having an extensive network of public transit, traffic congestion and transportation-related greenhouse gas (GHG) emissions are significant concerns in New Jersey. This research hypothesizes that traffic congestion and air quality concerns in the state would be much greater in the absence of public transit. With this hypothesis, the study e ...
  • Collection and analysis of 20132014 travel time data
    Collection and analysis of 2013-2014 travel time data.
    Chen, Mei ;
    Zhang, Xu
    2017-07-04 | PDF
    This report documents the findings of Planning Study 27, Collection and Analysis of 2013-2014 Travel Time Data, which is a continuation of Planning Study 24, Analysis of Historical Travel Time Data. The main scope is to analyze newly acquired link-referenced speed data on Kentucky roads from 2013 and 2014. Travel time-based performance measures dev ...
  • Analysis modeling and simulation AMS testbed development and evaluation to support dynamic mobility applications DMA and active transportation and demand management ATDM programs evaluation summary for DMA program
    Analysis, modeling, and simulation (AMS) testbed development and evaluation to support dynamic mobility applications (DMA) and active transportation and demand management (ATDM) programs — evaluation summary for DMA program.
    Yelchuru, Balaji ;
    Kamalanathsharma, Raj
    2017-07-04 | PDF
    The primary objective of this project is to develop multiple simulation testbeds/transportation models to evaluate the impacts of Dynamic Mobility Application (DMA) connected vehicle applications and Active Transportation and Demand management (ATDM) strategies. While the project aims at evaluating both DMA applications and ATDM strategies, the pri ...
  • Proposed testing of concrete sealers
    Proposed testing of concrete sealers.
    Wells, Danny ;
    Palle, Sudhir
    2017-07-04 | PDF
    Chlorides, in sufficient concentrations, will cause corrosion of steel reinforcement in bridge decks. Previous studies have shown that de-icing chemicals and practices used by the Kentucky Transportation Cabinet (KYTC) can result in problematic levels of chloride at steel reinforcing depths in a relatively short amount of time. With the advent of l ...
  • TopDown Construction Cost Estimating ModelGuide Using a Neural Network
    Top-Down Construction Cost Estimating Model/Guide Using a Neural Network
    Gransberg, Douglas D. ;
    Jeong, H. David
    2017-07-01 | PDF
    This report contains the information and background on top-down cost estimating using artificial neural networks (ANN)_to enhance the accuracy of MDT early estimates of construction costs. Upon conducting an extensive review of MDT’s budgeting and cost estimating efforts, and following a survey of agency experts on the identification of the most sa ...
    Supporting Files
  • Hurricane Vulnerability Assessment of Coastal Bridges in Georgia
    Hurricane Vulnerability Assessment of Coastal Bridges in Georgia
    Geum Chorzepa, Mi ;
    Durham, Stephan A.
    2017-07-01 | PDF
    This report presents the recommendations for coastal bridges potentially vulnerable to hurricane events for the Georgia Department of Transportation (GDOT). The main goal of this research was to evaluate potential hurricane hazard to coastal bridges from wave forces. It has been observed during past hurricanes that bridges located in the coastal en ...
  • Truck parking an emerging safety hazard to highway users final report draft
    Truck parking : an emerging safety hazard to highway users : final report - draft.
    Hernandez, Salvador ;
    Anderson, Jason
    2017-07-01 | PDF
    It is recognized nationwide that commercial motor vehicle operators are often unable to find safe andadequate parking to meet hours-of-service (HOS) regulations. This holds true in Oregon, where highusecorridor rest areas and truck stops are experiencing a demand for truck parking that exceedscapacity. With such a demand for truck parking, there is ...
  • Evaluation and Mitigation of Vehicle Impact Hazard for Overpasses
    Evaluation and Mitigation of Vehicle Impact Hazard for Overpasses
    Wehbe, Nadim I. ;
    Qin, Xiao
    2017-07-01 | PDF
    Crashes of heavy trucks with bridge columns are random events with low probability of occurrence. In spite of the low odds, previous collision events have resulted in catastrophic partial or full collapse of bridges. AASHTO-LRFD Bridge Design Specifications requires bridge columns to be designed for collision loads to prevent bridge collapse under ...
  • Warehousing and Distribution Center Facilities in Southern California The Use of the Commodity Flow Survey Data to Identify Logistics Sprawl and Freight Generation Patterns
    Warehousing and Distribution Center Facilities in Southern California: The Use of the Commodity Flow Survey Data to Identify Logistics Sprawl and Freight Generation Patterns
    Jaller, Miguel ;
    Pineda, Leticia
    2017-07-01 | PDF
    This work addresses an important research topic of freight modeling by analyzing the freight patterns, in terms of freight generation and logistics sprawl, of warehouses and distribution centers in Southern California. Specifically, this work analyzes the concentration of Warehouses and Distribution Centers (W&DC) (NAICS 493) in five counties in So ...
  • Analysis of Local Bus Markets Volume I Methodology and Findings
    Analysis of Local Bus Markets: Volume I – Methodology and Findings
    Deka, Devajyoti
    2017-07-01 | PDF
    Despite having an extensive network of public transit, traffic congestion and transportation-related greenhouse gas (GHG) emissions are significant concerns in New Jersey. This research hypothesizes that traffic congestion and air quality concerns in the state would be much greater in the absence of public transit. With this hypothesis, the study e ...
  • Ranking Northeast Illinois New Starts Transit Potential Expansion for Metra and CTA
    Ranking Northeast Illinois New Starts Transit Potential Expansion for Metra and CTA
    Sriraj, P. S. ;
    Snow, Jordan
    2017-07-01 | PDF
    This report reviews the programs and policies of the United States Department of Transportation (DOT)'s project selection and evaluation process to fund new capital-intensive projects in the transportation sector. The Federal formula programs administered and overseen by the Federal Transit Administration (FTA) are the basis for this review. Within ...
  • Texas Technology Task Force Expanding Texass Innovation Roadmap
    Texas Technology Task Force: Expanding Texas’s Innovation Roadmap
    Kristie Chin ;
    Andrea Gold
    2017-07-01 | PDF
    This research report provides an overview of the research team’s activities from September 2016 through July 2017. Major activities include continued stakeholder engagement of the Texas Technology Task Force (TTTF). The TTTF’s Strategy and Innovation Plan has also been updated, improving upon the roadmap to prepare and inform Texas transportation l ...
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