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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 3381 - 3400 of 35958 results
  • A BeforeAfter Intervention Experiment and Survey
    A Before-After Intervention Experiment and Survey
    McBride, Elizabeth C ;
    Goulias, Konstadinos G.
    2021-07-29 | PDF
    In this project, we first develop a strong theoretical model accompanied by data collection to test some of its aspects for behavioral change research. Data collection shifted from the originally planned public transportation intervention to the examination of COVID-19 impacts on the life of Los Angeles Metropolitan area residents. In terms of subs ...
  • Accessibility With GetGoing
    Accessibility With GetGoing
    Eskenazi, Maxine ;
    Black, Alan W.
    2021-07-28 | PDF
    The goal of this proposal is to make the GetGoing system which enables seniors to get transportation information over the phone, to also serve individuals with impairments who need more information about how to get to a desired destination such as condition of sidewalks and where the relevant entrance of a building is located. The team will work wi ...
  • Surficial Stabilization of WildfireBurnt Hillslopes Using Xanthan Gum and Polyacrylamide
    Surficial Stabilization of Wildfire-Burnt Hillslopes Using Xanthan Gum and Polyacrylamide
    Akin, Idil Deniz ;
    Garnica, Sophia S
    2021-07-27 | PDF
    Post-wildfire erosion and the slope instability issues associated with it are a global problem that can negatively affect transportation corridors, the environment, and human life. Currently, mulch treatments are commonly used means of stabilizing wildfire-burnt hillslopes; however, mulch, especially agricultural straw mulch, can pose environmental ...
  • LargeScale and LongTerm Forecasting of Performance Measurement of Public Transportation Systems
    Large-Scale and Long-Term Forecasting of Performance Measurement of Public Transportation Systems
    Chiang, Yao-Yi ;
    Shahabi, Cyrus
    2021-07-26 | PDF
    Accurate forecasting of public transportation metrics is critical towards the high reliability and efficiency of the public transportation system. However, deploying a forecasting system to serve city-level public transportation with long-term forecasting is challenging. In this project, we develop the capability for processing the entire Los Angel ...
  • Quantifying Gully Erosion and Potential for Sediment and Phosphorus Pollution Reductions Achieved by Erosion Remediation Projects on Vermonts Roads
    Quantifying Gully Erosion and Potential for Sediment and Phosphorus Pollution Reductions Achieved by Erosion Remediation Projects on Vermont’s Roads
    Wemple, Beverley C. ;
    Estabrook, Emma
    2021-07-16 | PDF
    Erosion at road drainage outfalls and culvert outlets contributes to water quality impairment by discharging stormwater, sediment, sediment-bound nutrients, and other water quality contaminants to receiving waters. In Vermont, past work has quantified the importance of road surface and roadside (i.e. ditch) erosion to water quality impairment and p ...
  • Smart Glasses for Improving Mobility of Low Vision People Phase Two
    Smart Glasses for Improving Mobility of Low Vision People (Phase Two)
    Cai, Yang
    ORCID ICON IMG
    2021-07-15 | PDF
    This proposal aims to continue the work toward a prototype of the smart glasses with the digital bioptic lens. In Phase Two, the project will implement the digital bioptic lens on augmented reality glasses. Bioptic glasses is a telescope on glasses. It helps people with poor vision see details in the central retina area where it has degenerated by ...
  • UF UABs Phase I Demonstration Study Older Driver Experiences With Autonomous Vehicle Technology
    UF & UAB’s Phase I Demonstration Study: Older Driver Experiences With Autonomous Vehicle Technology
    Classen, Sherrilene ;
    Sisiopiku, Virginia
    2021-07-15 | PDF
    Older adults (>65 years) account for almost 20% of the population in the United States and prefer driving as their primary mode of transportation but are at greater risk for crash-related injuries and death, compared to younger drivers. Autonomous vehicles (AVs) may hold health and safety benefits for older drivers, if this segment of the populatio ...
  • Connected Vehicle Pilot Deployment Program Phase 1 Performance Measurement and Evaluation Support Plan New York City Final Report
    Connected Vehicle Pilot Deployment Program Phase 1: Performance Measurement and Evaluation Support Plan: New York City: Final Report
    Galgano, Steve ;
    Talas, Mohamad
    2021-07-14 | PDF
    This document describes the Performance Measurement and Evaluation Support Plan for the New York City Department of Transportation New York City (NYC) Connected Vehicle Pilot Deployment (CVPD) Project. The report documents the performance metrics that will be used to assess the success of the NYC CVPD project, the targets for improvement in those p ...
  • 2021 International Symposium on Transportation Data and Modelling
    2021 International Symposium on Transportation Data and Modelling
    Yin, Yafeng ;
    Mi, Tian
    2021-07-09 | PDF
    This project partially sponsored the organization of the 2021 International Symposium on Transportation Data and Modeling (ISTDM 2021), which aims to gather transportation researchers and practitioners across the globe for exploring the frontiers of big data, modeling and simulation to advance transportation research to support the connected, coope ...
  • Guidelines for Wildlife Vehicle Collision Mitigation
    Guidelines for Wildlife Vehicle Collision Mitigation
    Bramblee, Kit
    2021-07-07 | PDF
    Vehicle collisions with wildlife are a national problem that affects motorists in every U.S. state, and challenges state DOTs seeking to minimize these crashes. New data shows U.S. drivers on average have a 1 in 116 chance of a collision with an animal. The company estimates there were over 1.9 million animal collision insurance claims in the U.S. ...
  • 100 Biodiesel Vector Technology and Fuel Dispensing Solution A CTECH Live Lab Pilot Project for the Implementation and Evaluation of the 100 Biodiesel Technology on Identified Equipment Within Cornells Fleet Operations
    100% Biodiesel Vector Technology and Fuel Dispensing Solution — A CTECH Live Lab Pilot Project for the Implementation and Evaluation of the 100% Biodiesel Technology on Identified Equipment Within Cornell’s Fleet Operations
    Brumberg, Gregory ;
    Li, Lawrence
    2021-07-02 | PDF
    In this study, researchers analyzed whether it was feasible for Cornell vehicles to use the Vector System (VS) by Optimus Technologies, a system that modifies diesel engine vehicles to run on biodiesel in addition to diesel in cold weather conditions. Biodiesel solidifies at a higher temperature than diesel, so to use biodiesel in the winter, the V ...
  • Consideration of Automated Vehicle Benefits and Research Needs for Rural America
    Consideration of Automated Vehicle Benefits and Research Needs for Rural America
    Dowds, Jonathan ;
    Sullivan, James
    2021-07-01 | PDF
    Safety, mobility, accessibility challenges, and dependence on personal vehicles have long plagued rural transportation systems. Benefits in these areas are widely touted by autonomous vehicle (AV) advocates. Seven mechanisms for AV-induced increases in vehicle miles traveled (VMT) are reviewed here, and five of these mechanisms are expected to have ...
  • Expanding the UC Davis GIS Electric Vehicle Planning Toolbox Beyond California The Delaware Valley Regional Planning Commission Case Study
    Expanding the UC Davis GIS Electric Vehicle Planning Toolbox Beyond California: The Delaware Valley Regional Planning Commission Case Study
    Tal, Gil ;
    Lee, Jae Hyun
    2021-07-01 | PDF
    This project creates a toolkit that run in ArcGIS and allows users to project where electric vehicle (EV) owners will live, work, and charge. There are three distinct modules: market analysis, workplace charging, and home charging presented in block group level. The tool can be updated by the metropolitan planning organization (MPO) users to reflec ...
  • Evaluation of Commercially Available Concrete Bridge Deck Repair Materials
    Evaluation of Commercially Available Concrete Bridge Deck Repair Materials
    Maguire, Marc ;
    Sorensen, Andrew D.
    2021-07-01 | PDF
    Extensive investigation on rapid repair materials for concrete bridge decks is of utmost importance to limit the impact on traveling vehicles as well as selecting suitable materials with acceptable mechanical properties and durability requirements. The objective of this research project is to evaluate eight commercial cementitious rapid repair mate ...
  • A Model for Integrating Rail Services with other Transportation Modalities Identifying the Best Practices and the Gaps for Californias Next State Rail Plan
    A Model for Integrating Rail Services with other Transportation Modalities: Identifying the Best Practices and the Gaps for California’s Next State Rail Plan
    Peterson, Eric ;
    Wei, Wenbin
    2021-07-01 | PDF
    The California State Rail Plan (CSRP) is among the best rail plan documents published by any jurisdiction in the United States to date. As such, the CSRP is used in this paper as the basis of comparison to other state rail service plans. These plans will have been submitted to the Federal Railroad Administration (FRA) on record as of June 2020—as r ...
  • EarlyAge and Premature Cracking in Jointed Plain Concrete Pavements Literature Review
    Early-Age and Premature Cracking in Jointed Plain Concrete Pavements: Literature Review
    Mateos, Angel ;
    Harvey, John T
    2021-07-01 | PDF
    This technical memorandum includes a literature review about the factors that may lead to early-age and premature cracking of jointed plain concrete pavements (JPCPs). The review shows that many factors are involved and that many different circumstances can result in these types of cracking. In most of the cases reported in the literature, the earl ...
  • Geospatial Approaches to Enhancing MPO Community Engagement
    Geospatial Approaches to Enhancing MPO Community Engagement
    Orr, Meghan ;
    Olson, Ben
    2021-07-01 | PDF
    Metropolitan planning organizations are responsible for overseeing urban planning in every major urban region in the country. In recent years the importance of building engagement with constituents to create more equitable and inclusive urban planning models has become a heightened priority. This white paper explored the benefits and best practices ...
  • 2020 Critical Update to Caltrans Wildfire Vulnerability Analysis
    2020 Critical Update to Caltrans Wildfire Vulnerability Analysis
    Thorne, James H. ;
    Boynton, Ryan M
    2021-07-01 | PDF
    Catastrophic wildfires over the past five years (2015-2020) have caused damage to the Caltrans road network in 81 separate wildfire events, leading to expenditures of over $590,000,000 to repair highway assets. To reduce the risk of further wildfire damage and to improve public safety, particularly for disadvantaged communities, Caltrans has engage ...
  • Transportation as a Disease VectorA Modeling Approach
    Transportation as a Disease Vector—A Modeling Approach
    Meitiv, Alexander ;
    Sanchez, Kristen
    2021-07-01 | PDF
    Today’s interconnected world, linked by transportation networks, plays a major role in the spread of a pandemic such as COVID-19. The virus originated in a single community, but due to the global nature of transportation, it spread to other parts of the world, impacting local communities and repeating this cycle many times over. In the context of d ...
  • Effect of Clay Content on AlkaliCarbonate Reactive ACR Dolomitic Limestone
    Effect of Clay Content on Alkali-Carbonate Reactive (ACR) Dolomitic Limestone
    Milla, Jose ;
    Rupnow, Tyson
    2021-07-01 | PDF
    This study aimed to evaluate whether an aggregate’s clay content plays an overarching role in ACR expansion and deterioration within the limestone sources that have been approved for use in portland cement concrete in Louisiana. A total of 29 aggregate sources from the Louisiana Department of Transportation and Development (DOTD) approved materials ...
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