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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 4101 - 4120 of 36011 results
  • SpatioTemporal Analysis of Freight Patterns in Southern California
    Spatio‐Temporal Analysis of Freight Patterns in Southern California
    Jaller, Miguel ;
    Rivera, Daniel
    2020-11-01 | PDF
    There has been a general trend to shift the location of warehouses and distribution facilities away from consumer markets (logistics sprawl) in Southern California. This shift has a negative impact on logistics cost (though with reduced facility costs) and the environment because freight vehicles have to travel longer to reach their destinations. H ...
  • Design of Living Barriers To Reduce the Impacts of Snowdrifts on Illinois Freeways
    Design of Living Barriers To Reduce the Impacts of Snowdrifts on Illinois Freeways
    Petrie, John ;
    Qi, Yan
    2020-11-01 | PDF
    Blowing snow accounts for a large part of Illinois Department of Transportation’s total winter maintenance expenditures. This project aims to develop recommendations on the design and placement of living snow fences (LSFs) to minimize snowdrift on Illinois highways. The research team examined historical IDOT data for resource expenditures, conducte ...
  • Rails to Resilience Evaluating New Orleans and Baton Rouge Rail Terminals and Transit Links
    Rails to Resilience: Evaluating New Orleans and Baton Rouge Rail Terminals and Transit Links
    Tolford, Tara M. ;
    Amdal, James
    2020-11-01 | PDF
    This study evaluates the multimodal linkages to and opportunities for proposed terminal sites for a potential future passenger rail connection between Baton Rouge and New Orleans, Louisiana. The project included a comprehensive analysis of recent planning processes and documents and distribution of a statewide survey aimed at understanding ridershi ...
  • Developing Markets for Zero Emission Vehicles in Short Haul Goods Movement
    Developing Markets for Zero Emission Vehicles in Short Haul Goods Movement
    Giuliano, Genevieve ;
    Dessouky, Maged
    2020-11-01 | PDF
    The potential for zero emission heavy duty trucks (ZEHDTs) is examined via simulation modeling, case studies, interviews and a survey. Impacts of ZEHDTs on freight operations are assessed. Costs and benefits of using diesel, natural gas hybrid and battery electric vehicles are compared for 2020, 2025, 2030. ZE applications are limited in the near t ...
  • Davis Amtrak Station Pilot Project Evaluation Informing Long Term Solutions to the Davis Amtrak Station Access Barriers
    Davis Amtrak Station Pilot Project Evaluation: Informing Long Term Solutions to the Davis Amtrak Station Access Barriers
    Pike, Susan
    ORCID ICON IMG
    2020-11-01 | PDF
    This study investigates barriers to accessing the Davis Amtrak Station to inform a program designed to increase access to the station with on-demand alternatives. The program aims to decrease private vehicle use to access the station and for travel to locations outside of Davis through partnerships with a carpool/rideshare app, as well as a ridehai ...
  • Infrastructure Needs North Dakotas County Township and Tribal Roads and Bridges 20212040
    Infrastructure Needs: North Dakota's County, Township and Tribal Roads and Bridges: 2021-2040
    Dybing, Alan ;
    Lu, Pan
    2020-11-01 | PDF
    This report is the response to the North Dakota Legislature's request for a study of the transportation infrastructure needs of all county and township roads in the state. In this report, infrastructure needs are estimated using the most current production forecasts, traffic estimates, and roadway inventory and condition data available. Agricultura ...
  • RealWorld Use of Automated Driving Systems and their Safety Consequences A Naturalistic Driving Data Analysis
    Real-World Use of Automated Driving Systems and their Safety Consequences: A Naturalistic Driving Data Analysis
    Kim, Hyungil ;
    Song, Miao
    2020-11-01 | PDF
    Automated driving systems (ADS) have the potential to fundamentally change transportation, and a growing number of these systems have entered the market and are currently in use on public roadways. However, drivers may not use ADS as intended due to misunderstandings about system capabilities and limitations. Moreover, the real-world use and effect ...
  • The Impact of the Louisiana Rail Infrastructure A System Analysis and Plan
    The Impact of the Louisiana Rail Infrastructure: A System Analysis and Plan
    Stich, Bethany ;
    Tian, Guang
    2020-11-01 | PDF
    The University of New Orleans Transportation Institute assisted the Louisiana Department of Transportation and Development (DOTD) to develop the State Rail Plan for the purpose of guiding the state’s freight and passenger rail transportation planning activities and project development plans over the next 20 years. This plan describes the state’s ex ...
  • Development of a Balanced Mix Design Method in Oregon
    Development of a Balanced Mix Design Method in Oregon
    Coleri, Erdem ;
    Sreedhar, Shashwath
    2020-11-01 | PDF
    According to recent surveys conducted with state Department of Transportations (DOTs) and asphalt contractors, commonly used asphalt mixture properties are not directly reflecting the long-term performance of asphalt mixtures. In addition, there are several new additives, polymers, rubbers, and high-quality binder types incorporated into asphalt mi ...
  • Rails to Resilience: Evaluating New Orleans and Baton Rouge Rail Terminals and Transit Links [supporting datasets]
    Tolford, Tara M. ;
    Amdal, James
    2020-11-01 | ZIP
    This study evaluates the multimodal linkages to and opportunities for proposed terminal sites for a potential future passenger rail connection between Baton Rouge and New Orleans, Louisiana. The project included a comprehensive analysis of recent planning processes and documents and distribution of a statewide survey aimed at understanding ridershi ...
    Dataset Supporting Files
  • Engineered Geopolymer Composites EGCs for Sustainable Transportation Infrastructure
    Engineered Geopolymer Composites (EGCs) for Sustainable Transportation Infrastructure
    Arce, Gabriel A ;
    Hassan, Marwa
    2020-11-01 | PDF
    The objective of this study was to develop novel Engineered Geopolymer Composite (EGC) materials implementing locally available ingredients to produce practical and cost-effective EGCs for repair and new construction of transportation infrastructure in the region. To this end, geopolymers (GPs) were synthesized by alkali activation of metakaolin (M ...
  • Evaluation of Asphalt Mixtures’ Resistance To Cement-Treated Base (CTB) Reflective Cracking in the Laboratory [supporting datasets]
    Sadek, Husam ;
    Hassan, Marwa
    2020-11-01 | ZIP
    The primary objective of this project is to propose a laboratory setup to test and evaluate an asphalt mixture layer on top of a simulated Cement-Treated Base (CTB) layer against reflective cracking. An in-depth literature review on the experimental studies that were conducted throughout the world to investigate the resistance of asphalt mixtures t ...
    Dataset Supporting Files
  • Evaluation of Bagasse Ash As Cement and Sand Replacement for the Production of Engineered Cementitious Composites ECC
    Evaluation of Bagasse Ash As Cement and Sand Replacement for the Production of Engineered Cementitious Composites (ECC)
    Arce, Gabriel A ;
    Hassan, Marwa M.
    2020-11-01 | PDF
    The objective of this study was to develop novel Engineered Cementitious Composites (ECC) materials implementing sugarcane bagasse ash (SCBA). To this end, the effects on the mechanical and physical properties of ECC materials of: (1) Louisiana raw SCBA (RBA) as a partial and complete replacement of sand (i.e., class S mixtures); (2) Louisiana post ...
  • Evaluating the Costs and Benefits of Snow Fences in Illinois Phase 2
    Evaluating the Costs and Benefits of Snow Fences in Illinois: Phase 2
    Qi, Yan ;
    Fries, Ryan N
    2020-11-01 | PDF
    Serving as a windbreak, properly sited and designed snow fences have been proven effective in mitigating the negative impacts of blowing snow. To achieve the best snow-control effects, the ideal locations for snow fences are usually outside the roadway right-of-way. Few efforts have been made to examine the economic efficiency of snow fences and ex ...
  • Evaluation of Bagasse Ash As Cement and Sand Replacement for the Production of Engineered Cementitious Composites (ECC) [supporting datasets]
    Arce, Gabriel A ;
    Hassan, Marwa M.
    2020-11-01 | ZIP
    The objective of this study was to develop novel Engineered Cementitious Composites (ECC) materials implementing sugarcane bagasse ash (SCBA). To this end, the effects on the mechanical and physical properties of ECC materials of: (1) Louisiana raw SCBA (RBA) as a partial and complete replacement of sand (i.e., class S mixtures); (2) Louisiana post ...
    Dataset Supporting Files
  • Platooning for Improved Safety and Efficiency of SemiTrucks PISES III
    Platooning for Improved Safety and Efficiency of Semi-Trucks (PISES – III)
    Viswanathan, Venkatasubramanian ;
    Shankar, Varun
    2020-11-01 | PDF
    In fluid physics, data-driven models to enhance or accelerate solution methods are becoming increasingly popular for many application domains, such as alternatives to turbulence closures, system surrogates, or for new physics discovery. In the context of reduced order models of high-dimensional time-dependent fluid systems, machine learning methods ...
  • Diverted Traffic Measurement
    Diverted Traffic Measurement
    Gudishala, Ravindra ;
    Wilmot, Chester
    2020-11-01 | PDF
    Most people in the US prefer to travel on freeways, but when there is congestion they divert onto local routes to avoid travel delay. This study measures the traffic diversion induced by an increase in congestion on the I-10 freeway in Baton Rouge during congestion, using a Bluetooth Detection System. The main objective of the study was to identify ...
  • CostBenefit Analysis of Novel Access Modes A Case Study in the San Francisco Bay Area
    Cost-Benefit Analysis of Novel Access Modes: A Case Study in the San Francisco Bay Area
    Broaddus, Andrea ;
    Rodier, Caroline
    2020-11-01 | PDF
    The first-mile, last-mile problem is a significant deterrent for potential transit riders, especially in suburban neighborhoods with low density. Transit agencies have typically sought to solve this problem by adding parking spaces near transit stations and adding stops to connect riders to fixed-route transit. However, these measures are often onl ...
  • Bridge Deck Inspection Using Small Unmanned Aircraft Systems Based Airborne Imaging Techniques [supporting datasets]
    Zhang, Su ;
    Baros, Shirley V
    2020-11-01 | ZIP
    As one of critical components of a transportation infrastructure system, bridges are very important to a country’s economy because they provide passage over physical obstacles to substantially reduce travel time and travel cost. Similar to other types of transportation infrastructure, bridges deteriorate over time. Therefore, bridges should be rout ...
    Dataset Supporting Files
  • Preventive Maintenance and Inspection for Traffic Signals Roadway Lighting and Overhead Sign Structures
    Preventive Maintenance and Inspection for Traffic Signals, Roadway Lighting and Overhead Sign Structures
    CTC & Associates LLC
    2020-11-01 | PDF
    The MnDOT Asset Management Program and Office of Traffic Engineering are seeking information about the state of the practice in preventive maintenance and inspection strategies designed to extend the service life of traffic signal, roadway lighting and overhead sign support structures. MnDOT is particularly interested in the expected service lives ...
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