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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 6441 - 6460 of 36101 results
  • Performance Assessment of Prototype Seat Belt Misuse Detection System
    Performance Assessment of Prototype Seat Belt Misuse Detection System
    Mazzae, Elizabeth N. ;
    Baldwin, G.H. Scott
    2018-10-01 | PDF
    Seat belt interlock systems may be an effective means of increasing seat belt use in light vehicles. A seat belt interlock system determines if a vehicle occupant is not wearing the seat belt properly and, if seat belt misuse is detected, takes some action to limit the operation of the vehicle. In 2016, NHTSA funded a project to develop a prototype ...
  • Evaluation of WisDOT Quality Management Program QMP Activities and Impacts on Pavement Performance
    Evaluation of WisDOT Quality Management Program (QMP) Activities and Impacts on Pavement Performance
    Faheem, Ahmed ;
    Hosseini, Arash
    2018-10-01 | PDF
    This project aims to evaluate the effectiveness of the quality measures employed by the Wisconsin Department of Transportation to influence the in-service performance of flexible pavements. The study involved creating a relational geo-referenced database connecting production, placement, and routine in-service performance data collected over the ye ...
  • Implementation of Continuous Improvement for INDOT Maintenance Training and Tracking Process Improvements
    Implementation of Continuous Improvement for INDOT Maintenance (Training and Tracking Process Improvements)
    Padfield, Jon
    2018-10-01 | PDF
    This is an applied research program. The research is a study of existing examples within INDOT to find examples of where LEAN tools and methodology have been successfully used to solve problems and improve efficiency. This research will be shared in a series of workshops where the participants will immediately apply the underlying principles to cur ...
  • SEGMENT Applicability of an Existing Segmentation Technique to TDM Social Marketing
    SEGMENT: Applicability of an Existing Segmentation Technique to TDM Social Marketing
    Winters, Philip ;
    Lester, Amy
    2018-10-01 | PDF
    Social marketing seeks to develop and integrate marketing concepts with other approaches to influence behaviors that benefit individuals and communities for the greater social good. Social marketing is a useful transportation demand management (TDM) planning approach to promote travel-behavior change. The purpose of this study was to explore a cons ...
  • Study on Motorcycle Safety in Negotiation with Horizontal Curves in Florida and Development of Crash Modification Factors
    Study on Motorcycle Safety in Negotiation with Horizontal Curves in Florida and Development of Crash Modification Factors
    Wang, Zhenyu ;
    Lee, Chanyoung
    2018-10-01 | PDF
    Motorcycle crashes are overrepresented on horizontal curves, especially along rural two-lane roads. Most roadway design and traffic control strategies on horizontal curves include limited considerations for motorcycles. It is necessary to conduct a study to investigate the factors contributing to motorcycle crash risk on horizontal curves and ident ...
  • Quick Response New England Connected and Autonomous Vehicles
    Quick Response: New England Connected and Autonomous Vehicles
    Chaffee, Chris ;
    Murtha, Suzanne
    2018-10-01 | PDF
    Regional coordination in anticipation of the widespread use of connected vehicles/autonomous vehicles (CVs/AVs) will better educate New England’s population, influence policy, reduce costs, and provide safer and more efficient roadways for the traveling public. This document provides considerations for identified cross-border issues and a roadmap f ...
  • Precast Concrete Bridge Barriers for Accelerated Bridge Construction
    Precast Concrete Bridge Barriers for Accelerated Bridge Construction
    Ecklund, Ashley ;
    Sritharan, Sri
    2018-10-01 | PDF
    Many transportation organizations have embraced Accelerated Bridge Construction (ABC) to reduce both the traffic impacts and societal costs. One of the most common means to achieve ABC is to utilize prefabricated elements that are connected on site to construct a bridge. ABC will not be effective if the barrier requires cast-in-place construction. ...
  • High Line Corridor Pneumatic WasteManagement Initiative Preimplementation Planning Study
    High Line Corridor Pneumatic Waste-Management Initiative: Pre-implementation Planning Study
    Miller, Benjamin ;
    Spertus, Juliette
    2018-10-01 | PDF
    This study was conducted to advance the High Line Corridor Pneumatic Waste-Management Initiative toward the implementation stage. The High Line is a 1.5-mile viaduct, once used to provide rail-freight service for a manufacturing district in Manhattan, which is now a park. The project would attach a pneumatic tube to this viaduct to transport three ...
  • Using Dynamic Relative Climate Impact Curves to Quantify the Climate Impact of Bioenergy Production Systems over Time
    Using Dynamic Relative Climate Impact Curves to Quantify the Climate Impact of Bioenergy Production Systems over Time
    de Jong, Sierk ;
    Staples, Mark
    2018-10-01 | PDF
    The climate impact of bioenergy is commonly quantified in terms of CO2 equivalents, using a fixed 100‐year global warming potential as an equivalency metric. This method has been criticized for the inability to appropriately address emissions timing and the focus on a single impact metric, which may lead to inaccurate or incomplete quantification o ...
  • Application of a Laser Scanning System to Dynamic Friction Test Specimens Correlation Between Texture and Friction
    Application of a Laser Scanning System to Dynamic Friction Test Specimens: Correlation Between Texture and Friction
    Arámbula-Mercado, Edith ;
    Fernando, Emmanuel
    2018-10-01 | PDF
    In this implementation effort, a laser-based scanning system was adapted to test aggregates from five sources before and after Micro-Deval abrasion and embedded in a ring-shaped polyester material. Improvements to the ring-shaped specimen preparation procedure were identified. The Aggregate Ring Texturing System (ARTS) hardware and software were us ...
  • Analysis of Bicycle and Pedestrian Crash Causes and Interventions
    Analysis of Bicycle and Pedestrian Crash Causes and Interventions
    Chavis, Celeste ;
    Lee, Young-Jae
    2018-10-01 | PDF
    Pedestrian and bicycle crashes have been over-represented in comparison with their share in commute and all trips share because they are vulnerable road users and usually exposed and unprotected to the traffic. The fatality rates of pedestrians and bicyclists have been significantly higher than national average rates in Washington, DC. Improving th ...
  • Investigation and Development of a Test Level 6 Barrier Phase I
    Investigation and Development of a Test Level 6 Barrier, Phase I
    Whitfield, Dean L. ;
    Schmidt, Jennifer D.
    2018-10-01 | PDF
    The objective of this research project was to develop a new, cost-effective, MASH TL-6 barrier. A literature review on prior Test Level 5 and Test Level 6 barriers was conducted, and the cost of current TL-5 and TL-6 barriers was established. Existing and modified design procedures for roadside barrier were reviewed as well as current TL-6 design f ...
  • Integral Abutment Connection Details for Accelerated Bridge Construction
    Integral Abutment Connection Details for Accelerated Bridge Construction
    Hosteng, Travis K. ;
    Shafei, Behrouz
    2018-10-01 | PDF
    During bridge construction, closures have significant impacts on traffic flow for the public. To alleviate this impact, the presence of precast elements is being introduced in the design and construction of bridges, which would increase the efficiency of construction and convert month-long, or even year-long, closures into a matter of weeks, or per ...
  • Field Performance Evaluation of Sustainable Aggregate ByProduct Applications
    Field Performance Evaluation of Sustainable Aggregate By-Product Applications
    Qamhia, Issam ;
    Tutumluer, Erol
    2018-10-01 | PDF
    Research efforts at the Illinois Center for Transportation (ICT) focused on evaluating new sustainable applications of Quarry By-products (QB) or QB mixed with other marginal, virgin, or recycled aggregate materials in pavements, as unbound or chemically stabilized pavement layers. Sixteen full-scale test sections were constructed to evaluate the u ...
  • StreamStats for South Carolina A Multipurpose WaterResources Web Application
    StreamStats for South Carolina: A Multipurpose Water-Resources Web Application
    Feaster, Toby D. ;
    Clark, Jimmy M
    2018-10-01 | PDF
    The U.S. Geological Survey (USGS) developed the South Carolina StreamStats application in cooperation with the South Carolina Department of Transportation. StreamStats (https://water.usgs.gov/osw/streamstats/) is a map-based web application that provides analytical tools useful for water-resources planning and management and many engineering purpos ...
  • Improving Freight Efficiency with Load Matching Technology Brief
    Improving Freight Efficiency with Load Matching Technology [Brief]
    Steimetz, Seiji
    ORCID ICON IMG
    2018-10-01 | PDF
    Load-matching technology, or digital freight matching (DFM), helps an inefficient and often fragmented local trucking market by eliminating non-revenue-generating trips. The basic idea of the technology is to provide a real-time, GPS-based connection between shippers and carriers, somewhat similar to how Uber and Lyft connect drivers and passengers ...
  • Advancing Traveler Information Technologies for Priced Managed Lane Networks
    Advancing Traveler Information Technologies for Priced Managed Lane Networks
    Wood, Nick ;
    Chrysler, Sue
    2018-10-01 | PDF
    Managed lane networks are complex, interconnected facilities that require advancements in traveler information to successfully serve the users of those facilities. Historically, managed lanes were typically developed for single, distinct corridors, providing preferential access for users who travel from one endpoint to another. The success of past ...
  • Effectiveness of Seasonal Deer Advisories on Changeable Message Signs as a Deer Crash Reduction Tool
    Effectiveness of Seasonal Deer Advisories on Changeable Message Signs as a Deer Crash Reduction Tool
    Donaldson, Bridget M. ;
    Kweon, Young-Jun
    2018-10-01 | PDF
    The Virginia Department of Transportation (VDOT) began posting deer advisory messages on changeable message signs (CMSs) along a 16.7-mile segment of I-64 between Waynesboro and Charlottesville, Virginia, in October 2015. The posting of these messages during the peak of deer activity, October-November from 5 P.M. to 9 A.M., was intended to raise dr ...
  • Automated Estimation of Winter Driving Conditions
    Automated Estimation of Winter Driving Conditions
    Baldwin, Michael E ;
    Burris, Kevin D
    2018-10-01 | PDF
    There is great potential for improvements in traveler safety and satisfaction as new sources of information are incorporated into advanced analytics and prediction systems. It is critical for transportation agencies to be able to monitor weather conditions in real-time as well as over the long-term for purposes of maintenance, planning, and perform ...
  • Streamlined Access Permitting Process
    Streamlined Access Permitting Process
    Bassett, David R. ;
    Seat, Marlee L.
    2018-10-01 | PDF
    As part of the approval process for an access to a property, developers are sometimes required to perform a Traffic Impact Study (TIS), which takes time and money. This process also demands a significant amount time and resources from UDOT‘s Permits Department. There is a need to increase the efficiency of the permitting process, increase the numbe ...
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