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Recent Additions
This page includes the documents that were newly added to the repository within the last 30 days.
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  • Palm Beach TPA Enhanced Transit Peer Exchange: A TCPB Peer Exchange Event
    Published Date:
    2020-03-31
    Abstract:
    This report highlights the experiences, successes, challenges, and lessons learned of two national peer agencies (Capital Metro and Valley Metro) and four local peer agencies (Broward County Transit, Central Florida Regional Transportation Authority ...
    File Type:
    Filetype[PDF - 1.71 MB]
    Added:
    04/06/2020
  • Flight Deck Human Factors Issues in Lateral Deviations during North Atlantic (NAD) Flight Operations
    Published Date:
    2020-03-04
    Abstract:
    This study examines reported lateral flight path deviations related to the use of half-degree waypoint coordinates in the North Atlantic (NAT). Such waypoints can have ambiguous display labels on flight deck displays, which might result in flightcrew...
    File Type:
    Filetype[PDF - 1.37 MB]
    Added:
    04/06/2020
  • Phase-II: Community-Aware Charging Station Network Design for Electrified Vehicles in Urban Areas: Reducing Congestion, Emissions, Improving Accessibility, and Promoting Walking, Bicycling, and use of Public Transportation
    Published Date:
    2019-01-31
    Abstract:
    A major challenge for achieving large-scale adoption of EVs is an accessible infrastructure for the communities. The societal benefits of large-scale adoption of EVs cannot be realized without adequate deployment of publicly accessible charging stati...
    File Type:
    Filetype[PDF - 3.33 MB]
    Added:
    04/06/2020
  • Development of a Bicycle Dynamic Model and Riding Environment for Evaluating Roadway Features for Safe Cycling
    Published Date:
    2018-10-31
    Abstract:
    Cycling is a viable transportation option for almost everyone and enhances health, equity, and quality of life. Cycling contributes to the society by reducing fuel consumption, traffic congestion, and air and noise pollution. In recent days, cycling ...
    File Type:
    Filetype[PDF - 3.06 MB]
    Added:
    04/06/2020
  • Use of Nevada’s Natural Pozzolans to Mitigate Alkali-Silica Reactivity
    Published Date:
    2019-02-01
    Abstract:
    Alkali-silica reactivity is one of the most recognized deleterious phenomena in Portland cement concrete resulting in cracks, spalling, and other deleterious mechanisms. The aim of this study was (i) to assess the extent of reactivity of the aggregat...
    File Type:
    Filetype[PDF - 2.43 MB]
    Added:
    04/06/2020
  • High-Resolution Micro Traffic Data From Roadside LiDAR Sensors for Connected-Vehicles and New Traffic Applications
    Published Date:
    2018-10-01
    Abstract:
    This report documents and presents algorithms and procedure developed for extracting high-accuracy high-resolution trajectory data from roadside LiDAR sensors. The developed methods were evaluated with data from various traffic scenarios. Pilot appli...
    File Type:
    Filetype[PDF - 3.13 MB]
    Added:
    04/06/2020
  • Developing and testing a LED system to improve pedestrian safety in Nevada
    Published Date:
    2018-11-02
    Abstract:
    The proposed Light Emitting Diode (LED) pedestrian crossing system is an enhanced pedestrian crossing system that can automate the flashing of LED street light after detecting the presence of pedestrian crossing streets. Comparing the existing pedest...
    File Type:
    Filetype[PDF - 1.32 MB]
    Added:
    04/06/2020
  • Design, Prototyping and Field Testing a Demand-Responsive Rumble Strip Mechanism
    Published Date:
    2018-12-01
    Abstract:
    This project involved the development, design, prototyping and testing of a Demand-Responsive Transverse Rumble Strip (DRTRS) mechanism, which becomes active (lowers an array of strips) only when necessary in order to alert drivers of downstream risk...
    File Type:
    Filetype[PDF - 41.89 MB]
    Added:
    04/06/2020
  • Surface Resistivity for Concrete Quality Assurance
    Published Date:
    2018-12-16
    Abstract:
    The goal of this study was to determine the effectiveness of the surface resistivity test (SRT) for concrete quality assurance and to evaluate the relationship between SRT and the three chloride ion ingress methods currently used by various State dep...
    File Type:
    Filetype[PDF - 3.13 MB]
    Added:
    04/06/2020
  • Evaluation of Audible Lane Departure Warning Treatments for Seal Coat Road Surfaces
    Published Date:
    2019-02-01
    Abstract:
    In an effort to reduce the number of single vehicle run-off-road and two-lane two-way crossover crashes, Texas Department of Transportation (TxDOT) has implemented various audible lane departure warning systems on seal coat road surfaces. This 20-mon...
    File Type:
    Filetype[PDF - 12.79 MB]
    Added:
    04/06/2020
  • Improving the Amount and Availability of Pedestrian and Bicyclist Count Data in Texas
    Published Date:
    2019-02-01
    Abstract:
    The Texas Department of Transportation (TxDOT) currently has very limited count data on pedestrian and bicyclist usage of the transportation system. The first objective of this project was to recommend a count monitoring process for pedestrians and b...
    File Type:
    Filetype[PDF - 9.69 MB]
    Added:
    04/06/2020
  • Best Practices for the Use of RAS in HMA: Instructor Guide
    Published Date:
    2019-02-01
    Abstract:
    The asphalt paving industry has always advocated recycling, including reclaimed asphalt pavement (RAP), recycled asphalt shingles (RAS), tires, etc. The earliest recycling asphalt pavement dates back to 1915. In addition to conserving energy and prot...
    File Type:
    Filetype[PDF - 3.56 MB]
    Added:
    04/06/2020
  • Best Practices for the Use of RAS in HMA: Workshop Student Handbook
    Published Date:
    2019-02-01
    Abstract:
    The asphalt paving industry has always advocated recycling, including reclaimed asphalt pavement (RAP), recycled asphalt shingles (RAS), tires, etc. In addition to conserving energy and protecting the environment, the use of RAP/RAS can significantly...
    File Type:
    Filetype[PDF - 1014.47 KB]
    Added:
    04/06/2020
  • Low-distraction Interaction
    Published Date:
    2019-04-29
    Abstract:
    We know that talking or texting while involved in a complex sensorimotor task like driving is dangerous. In such situations, interruptions from notifications can negatively impact primary task performance as well. This paper investigates the impact o...
    File Type:
    Filetype[PDF - 559.88 KB]
    Added:
    04/06/2020
  • Feasibility of Estimating Commodity Flows on Highways with Existing and Emerging Technologies
    Published Date:
    2019-03-01
    Abstract:
    Understanding the types and volumes of different commodities being hauled over the roadway network is important for freight demand modeling and planning. Categorizing trucks or trailers into subclasses (e.g., container, dry van, refrigerated vans, ta...
    File Type:
    Filetype[PDF - 3.05 MB]
    Added:
    04/06/2020
  • Distribution of Loads in Beam and Slab Bridge Floors
    Published Date:
    1961-01-01
    Abstract:
    Bridge Floors Currently most states use the American Association of State Highway Officials (AASHO) specifications for design of slab and beam floor systems. Since the present AASHO specifications (1957) show considerable error in the load distributi...
    File Type:
    Filetype[PDF - 2.66 MB]
    Added:
    04/06/2020
  • FHWA R&T Now - January 2014
    Published Date:
    2014-01-01
    Abstract:
    Federal Highway Administration's FHWA R&T Now is a newsletter containing information and updates about research, technology, and development from the U.S. Department of Transportation, Federal Highway Administration. The newsletter is an electronic n...
    File Type:
    Filetype[PDF - 35.32 KB]
    Added:
    03/30/2020
  • FHWA R&T Now - March 2014
    Published Date:
    2014-03-01
    Abstract:
    Federal Highway Administration's FHWA R&T Now is a newsletter containing information and updates about research, technology, and development from the U.S. Department of Transportation, Federal Highway Administration. The newsletter is an electronic n...
    File Type:
    Filetype[PDF - 48.61 KB]
    Added:
    03/30/2020
  • FHWA R&T Now - May 2014
    Published Date:
    2014-05-01
    Abstract:
    Federal Highway Administration's FHWA R&T Now is a newsletter containing information and updates about research, technology, and development from the U.S. Department of Transportation, Federal Highway Administration. The newsletter is an electronic n...
    File Type:
    Filetype[PDF - 264.84 KB]
    Added:
    03/30/2020
  • FHWA R&T Now - July 2014
    Published Date:
    2014-07-01
    Abstract:
    Federal Highway Administration's FHWA R&T Now is a newsletter containing information and updates about research, technology, and development from the U.S. Department of Transportation, Federal Highway Administration. The newsletter is an electronic n...
    File Type:
    Filetype[PDF - 319.29 KB]
    Added:
    03/30/2020
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