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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 4741 - 4760 of 36020 results
  • Accelerated Repair and Replacement of Expansion Joints
    Accelerated Repair and Replacement of Expansion Joints
    Phares, Brent M. ;
    Ruble, Kara
    2020-04-01 | PDF
    Bridge deck expansion joints allow for the movement of bridge decks exposed to thermal expansion and dynamic loading. These joints are often one of the first components of a bridge deck to fail, and there is a need for accelerated replacement options, especially in areas with high traffic volumes. Extensive research is being conducted on accelerate ...
  • Exploring the Role of Attitude in the Acceptance of SelfDriving Shuttles
    Exploring the Role of Attitude in the Acceptance of Self-Driving Shuttles
    Xing, Yan ;
    Handy, Susan L
    2020-04-01 | PDF
    Self-driving vehicles, as a revolution in mobility, are emerging and developing rapidly. However, public attitudes toward this new unproven technology are still uncertain. Given the significant influence of attitude toward a new technology on the intention to use it, the question arises as to why some people are in favor of this technology whereas ...
  • Autonomous Vehicles Capturing InVehicle Experience Focus Group FollowUp With Persons With Autism and Other Disabilities at the 2019 Princeton University SmartDrivingCar Summit
    Autonomous Vehicles: Capturing In-Vehicle Experience & Focus Group Follow-Up With Persons With Autism and Other Disabilities at the 2019 Princeton University SmartDrivingCar Summit
    Feeley, Cecilia ;
    Lubin, Andrea
    2020-04-01 | PDF
    As autonomous vehicle (AV) innovation continues to gain worldwide momentum and with it the potential for expanded mobility, it is vital to consider how this technology can contribute to improved access for persons with disabilities, who represent one in four U.S. adults, or over 60 million persons. To date, there has been limited research focused o ...
  • Guidelines for Chemically Stabilizing Problematic Soils Final Report
    Guidelines for Chemically Stabilizing Problematic Soils: Final Report
    Chittoori, Bhaskar C S
    ORCID ICON IMG
    2020-04-01 | PDF
    The main goal of this project was to establish protocols for conducting efficient chemical stabilization design for problematic soils with and without soluble sulfates within the state of Montana. A major portion of chemical stabilization protocols involves the selection of type and amount of the additives. The proper selection of type and concentr ...
  • Dynamic Management of Food Redistribution for 412 Food Rescue
    Dynamic Management of Food Redistribution for 412 Food Rescue
    Rubinstein, Zachary B.
    ORCID ICON IMG
    2020-04-01 | PDF
    The goal of this project was to increase the capacity of the non-profit 412 Food Rescue (412FR) to use a crowd-sourcing model of volunteer drivers to redistribute viable food waste from vendors, such as grocery stores and restaurants, to pantries and other non-profit organizations in order to provide food to disadvantaged hungry people. Specificall ...
  • Distracted Driving A Literature Review
    Distracted Driving: A Literature Review
    Qi, Yan ;
    Vennu, Ravali
    2020-04-01 | PDF
    With the increased use of electronic devices, distracted driving is assumed to be one of the main causes of crashes. The Illinois Department of Transportation (IDOT) has demonstrated interest in addressing distracted driving. However, the real impact of distracted driving on traffic crashes in Illinois is still unclear because of what appears to be ...
  • Assessment and Evaluations of I80 Truck Loads and Their Load Effects Phase 2 Service
    Assessment and Evaluations of I-80 Truck Loads and Their Load Effects: Phase 2: Service
    Barker, Michael ;
    Goodrich, Brian L
    2020-04-01 | PDF
    The research objective is to assess the performance (in terms of AASHTO design expectations for serviceability) of bridges along the Interstate 80 (I-80) corridor for Wyoming’s truck traffic. Wyoming’s I-80 carries a large volume of cross-continental and large energy industry trucks compared to many states. Moreover, frequent weather closures posit ...
    Supporting Files
  • Evaluation of Coordinated Ramp Metering CRM Implemented By Caltrans
    Evaluation of Coordinated Ramp Metering (CRM) Implemented By Caltrans
    Molan, Amirarsalan Mehara ;
    Murugesan, Nivedha
    2020-04-01 | PDF
    Coordinated ramp metering (CRM) is a critical component of smart freeway corridors that rely on real-time traffic data from ramps and freeway mainline to improve decision-making by the motorists and Traffic Management Center (TMC) personnel. CRM uses an algorithm that considers real-time traffic volumes on freeway mainline and ramps and then adjust ...
  • Grand Forks East Grand Forks Regional ITS Architecture Update Version 40
    Grand Forks - East Grand Forks Regional ITS Architecture Update: Version 4.0
    Grand Forks/East Grand Forks Metropolitan Planning Organization
    2020-04-01 | PDF
    This document summarizes the results of the regional Intelligent Transportation architecture development for the Grand Forks-East Grand Forks Area. Intelligent Transportation Systems (ITS) refer to integrated applications of sensing, communications, computer processing, and electronics to enhance the transportation systems. The regional architectur ...
  • Measuring the Economic Benefits of Rural and Small Urban Transit Services in Greater Minnesota
    Measuring the Economic Benefits of Rural and Small Urban Transit Services in Greater Minnesota
    Mattson, Jeremy ;
    Peterson, Del
    2020-04-01 | PDF
    The objective of this research was to measure the benefits of rural and small urban transit services in Minnesota. The study accomplished this by first identifying, describing, and classifying the potential benefits of transit. Second, a method was developed for measuring these benefits. Where possible, benefits were quantified in dollar values. Ot ...
  • Strategies to Mitigate WrongWay Driving Incidents on Arterials Summary
    Strategies to Mitigate Wrong-Way Driving Incidents on Arterials [Summary]
    Ponnaluri, Raj ;
    Alluri, Priyanka
    2020-04-01 | PDF
    The researchers summarized existing studies of WWD on arterials and WWD countermeasures. They also examined the role of public outreach in reducing WWD incidents. The researchers surveyed safety practitioners across the state to discover if public education about WWD was being conducted, if respondents thought it would be helpful, and what format m ...
  • Social Justice Mitigation in Transportation Projects Why and How Lexington Fayette Urban County Government Can Support the Lexington Community Land Trusts Path to SelfSustainability
    Social Justice Mitigation in Transportation Projects: Why and How Lexington Fayette Urban County Government Can Support the Lexington Community Land Trust’s Path to Self-Sustainability
    Young, Pam Clay ;
    Kreis, Doug
    2020-04-01 | PDF
    The city of Lexington has reached a critical shortage of affordable housing available to families earning 80% - 50% of area median income (AMI). This study focuses on how to grow the Lexington CLT into self-sustainability while also narrowing the affordable housing gaps in Fayette County. Current research offers support for the city’s affordable ho ...
  • Connected and Automated Vehicle Based Intersection Maneuver Assist Systems CAVIMAS and Their Impact on Driver Behavior Acceptance and Safety
    Connected and Automated Vehicle Based Intersection Maneuver Assist Systems (CAVIMAS) and Their Impact on Driver Behavior, Acceptance, and Safety
    Pradhan, Anuj K. ;
    Jeong, Heejin
    2020-04-01 | PDF
    Intersection crashes can be potentially mitigated by leveraging deployments of vehicle-to-infrastructure (V2I) and vehicle-to- vehicle (V2V) safety management solutions. However, it is equally critical that these deployments are undertaken in tandem with interventions based on human factors evidence relating to the content and presentation of such ...
  • Utilizing Highway Rest Areas for Electric Vehicle Charging Economics and Impacts on Renewable Energy Penetration in California
    Utilizing Highway Rest Areas for Electric Vehicle Charging: Economics and Impacts on Renewable Energy Penetration in California
    Kiani, Behdad ;
    Ogden, Joan
    2020-04-01 | PDF
    California policy is incentivizing rapid adoption of zero emission electric vehicles for light-duty and freight applications. This project explored how locating charging facilities at California’s highway rest stops might impact electricity demand, grid operation, and integration of renewables like solar and wind into California’s energy mix. Assum ...
  • Facilitating Electric Vehicle Adoption with Vehicle Cost Calculators
    Facilitating Electric Vehicle Adoption with Vehicle Cost Calculators
    Sanguinetti, Angela ;
    Alston-Stepnitz, Eli
    2020-04-01 | PDF
    Consumer education regarding the costs of electric vehicles (EVs), particularly in comparison with similar gasoline vehicles, is important for adoption. However, the complexity of comparing gasoline and electricity prices, and balancing long-term return-on-investment from fuel and maintenance savings with purchase premiums for EVs, makes it difficu ...
  • Evaluate ODOTs Current Berm Compaction Process for Cost Effective Alternatives
    Evaluate ODOT's Current Berm Compaction Process for Cost Effective Alternatives
    Nazzal, Munir D. ;
    Kim, Sang Soo
    2020-04-01 | PDF
    This report summarizes the results of a research project that was completed to evaluate and analyze ODOT’s current berm construction/repair process and provide recommendations on how to improve the safety, productivity and cost effectiveness of this process. This project was divided into two phases. The results of Phase 1 indicated that the main ca ...
  • Understanding Economic and Business Impacts of Street Improvements for Bicycle and Mobility A MultiCity MultiApproach Exploration
    Understanding Economic and Business Impacts of Street Improvements for Bicycle and Mobility – A Multi-City Multi-Approach Exploration
    Liu, Jenny H. ;
    Shi, Wei
    2020-04-01 | PDF
    Many cities across the country, as part of Complete Streets initiatives or to promote community livability and environmental sustainability, have engaged in street improvement or transportation infrastructure upgrade projects that increase access and mobility for pedestrians and bicyclists through a reduction of on-street parking or traffic lanes. ...
  • NonContact Splices at Drilled Shaft To Bridge Column Interface Final Report
    Non-Contact Splices at Drilled Shaft To Bridge Column Interface: Final Report
    Masud, Mahadi ;
    Sawab, Jamshaid
    2020-04-01 | PDF
    This report presents an experimental and analytical investigation of non-contact lap splices at non-circular bridge column to circular drilled shaft connections. Eleven large-scale column-drilled shaft specimens were tested to investigate the effects of the critical parameters affecting the performance of non-contact lap splices. The test results s ...
  • Implementing Rapid Durability Measure for Concrete Using Resistivity and Formation Factor
    Implementing Rapid Durability Measure for Concrete Using Resistivity and Formation Factor
    Weiss, W Jason ;
    Qiao, Chunyu
    2020-04-01 | PDF
    The durability of in-place concrete is a high priority issue for concrete pavements and bridges. Several studies have been conducted by INDOT to use electrical resistivity as a measure of fluid transport properties. Resistivity is dependent on the chemistry of the cement and supplementary cementitious system used, as such it has been recommended th ...
  • Use of Surface Treatments To Extend Pavement Life A Case Study on Us 301 Sussex County Virginia
    Use of Surface Treatments To Extend Pavement Life: A Case Study on Us 301, Sussex County, Virginia
    Nair, Harikrishnan ;
    Lane, D. Stephen
    2020-04-01 | PDF
    Typical maintenance activities by the Virginia Department of Transportation (VDOT) for existing asphalt pavements involving a periodic placement of a 1.5-in to 2-in layer of asphalt concrete are becoming increasingly costly. When applied at the right time, pavement preservation treatments can restore a smooth, safe driving surface while saving mone ...
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