Recent Submissions

  • Description of the SHRP 2 Naturalistic Database and the Crash, Near-Crash, and Baseline Data Sets 

    Hankey, Jonathan M.; Perez, Miguel A.; McClafferty, Julie A. (Virginia Tech Transportation Institute, 2016-04)
    The focus of this project was to identify and prepare crash, near-crash, and baseline data sets extracted from the Second Strategic Highway Research Program (SHRP 2) Naturalistic Driving Study (NDS) trip files, then to ...
  • Identification of Consented Driver Trips in the SHRP 2 Naturalistic Driving Study Data Set 

    McClafferty, Julie A.; Perez, Miguel A.; Hankey, Jonathan M. (Virginia Tech Transportation Institute, 2015-02)
    The Second Strategic Highway Research Program (SHRP 2) Naturalistic Driving Study (NDS) data set contains approximately 5.51 million naturalistic driving trip files across thousands of consented drivers, making it the ...
  • Infrastructure Pavement Assessment & Management Applications Enabled by the Connected Vehicles Environment – Proof-of-Concept 

    Flintsch, Gerardo; Smith, Brian (Research and Innovative Technology Administration, 2015-09-30)
    The objective of this project was to develop prototypes and conduct a field test of system level applications of a connected vehicle pavement condition measurement system. This allowed the research team to: (1) investigate ...
  • Safety, operational, and energy impacts of in-vehicle adaptive stop displays using connected vehicle technology 

    Noble, Alexandria (Research and Innovative Technology Administration, 2015-07-30)
    Un-signalized intersections create multiple opportunities for missed or misunderstood information. Stop sign-controlled intersections have also been shown to be a source of delay and emissions due to their frequent, often ...
  • Automated Vehicle Crash Rate Comparison Using Naturalistic Data 

    Blanco, Myra; Atwood, Jon; Russell, Sheldon; Trimble, Tammy; McClafferty, Julie; Perez, Miguel (Virginia Tech Transportation Institute, 2016-01-08)
    This study assessed driving risk for the United States nationally and for the Google Self-Driving Car project. Driving safety on public roads was examined in three ways. The total crash rates for the Self-Driving Car and ...
  • Potential Reduction in Large Truck and Bus Traffic Fatalities and Injuries Using Lytx's DriveCam Program 

    Soccolich, Susan A.; Hickman, Jeffrey S. (Lytx; Virginia Tech, 2014-05)
    This study quantitatively evaluated the potential safety benefits of equipping all United States heavy trucks and buses in the U.S. with Lytx™ Inc.’s DriveCam® program. Heavy trucks and buses include the following vehicle ...
  • Researcher Dictionary for Safety Critical Event Video Reduction Data 

    Virginia Tech Transportation Institute (Virginia Tech. Virginia Tech Transportation Institute, 2015-10-06)
    This data dictionary describes the video reduction variables available in the Second Strategic Highway Research Program (SHRP 2) Naturalistic Driving Study data set for use by the research community. The data dictionary ...
  • Virginia Tech Transportation Institute Publications - Bibliography 

    Virginia Tech. Virginia Tech Transportation Institute; Martin, Tim (Virginia Tech. Virginia Tech Transportation Institute, 2015-08-10)
    This bibliography lists approximately 695 publications authored by the Virginia Tech Transportation Institute's faculty, staff, and collaborators from 1979 to 2015. These publications cover a range of topics including, but ...
  • Naturalistic Driving Study: Technical Coordination and Quality Control (SHRP 2 Report S2-S06-RW-1) 

    Dingus, Thomas A.; Hankey, Jonathan M.; Antin, Jonathan F.; Lee, Suzanne E.; Eichelberger, Lisa; Stulce, Kelly E.; McGraw, Doug; Perez, Miguel A.; Stowe, Loren (Transportation Research Board, 2015)
  • Splash and Spray Assessment Tool Development Program: Final Report 

    Flintsch, Gerardo W.; Tang, Lijie; Katicha, Samer; de León Izeppi, Edgar; Viner, Helen; Dunford, Alan; Nesnas, Kamal; Coyle, Fiona; Sanders, Peter; Gibbons, Ronald B. (Ronald Bruce); Williams, Brian; Hargreaves, David; Parry, Tony; McGhee, Kevin K.; Larson, Roger M.; Smith, Kelly (Virginia Tech. Virginia Tech Transportation Institute, 2014-10-07)
    The effects of vehicle splash and spray are well known to motorists who have driven in wet weather conditions. Research suggests that splash and spray contribute to a small but measurable portion of road traffic accidents ...
  • Improvement of Conspicuity of Trailblazing Signs: Phase III-Evaluation of Fluorescent Colors 

    Neale, Vicki L.; Anders, Richard L.; Christopher S. Schreiner; Brich, Stephen C. (Virginia Center for Transportation Innovation and Research, 2001-02), FHWA/VTRC 01-CR4
    This report represents a Phase III effort to design and evaluate a new sign design for incident route trailblazing. The colors evaluated were fluorescent coral, fluorescent purple, fluorescent yellow-green, and non-fluorescent ...
  • High-speed texture measurement of pavements 

    McGhee, Kevin K.; Flintsch, Gerardo W. (Virginia Center for Transportation Innovation and Research, 2003-02-01), VTRC 03-R9
    This study was conducted to validate high-speed texture measuring equipment for use in highway applications. The evaluation included two high-speed systems and a new static referencing device. Tests were conducted on 22 ...
  • Using high-speed texture measurements to improve the uniformity of hot-mix asphalt 

    McGhee, Kevin K.; Flintsch, Gerardo W.; de León Izeppi, Edgar (Virginia Center for Transportation Innovation and Research, 2003-05-01), VTRC 03-R12
    This study introduces Virginia's efforts to apply high-speed texture measurement as a tool to improve the uniformity of hot-mix asphalt (HMA) pavements. Three approaches for detecting and quantifying HMA segregation through ...
  • Modernizing bridge safety inspection with process improvement and digital assistance 

    Mills, Thomas H., III; Wakefield, Ronald R. (Virginia Center for Transportation Innovation and Research, 2004-01), VTRC 04-CR6
    This research effort was developed to record and analyze the Virginia Department of Transportation (VDOT) bridge/structure inspection processes as an aid to modernizing and automating these inspection processes through the ...
  • Field Investigation of High Performance Pavements in Virginia 

    Flintsch, Gerardo W.; Imad L. Al-Qadi; Loulizi, Amara; Samer Lahouar; McGhee, Kevin K.; Trenton Clark (Virginia Center for Transportation Innovation and Research, 2005-01-01), VTRC 05-CR9
    This study evaluated 18 pavement sections located in high-traffic highways in Virginia to find a premium pavement design with a life span of 40 years or more using current and past field experience. The selected pavement ...
  • Wet Night Visibility of Pavement Markings 

    Gibbons, Ronald B. (Ronald Bruce); Hankey, Jonathan M.; Pashaj, Irena (Virginia Center for Transportation Innovation and Research, 2004-10), FHWA/VTRC 05-CR3
    This report describes an investigation into the performance of pavement markings in wet night conditions. The performance of a typical pavement marking will degrade when it gets wet. This is a result of the flooding of the ...
  • Wet night visibility of pavement markings :executive summary 

    Gibbons, Ronald B. (Ronald Bruce); Hankey, Jonathan M.; Pashaj, Irena (Virginia Center for Transportation Innovation and Research, 2004-10), VTRC 05-CR4
    This executive summary describes an investigation into the performance of pavement markings in wet night conditions. The performance of a typical pavement marking will degrade when it gets wet. This is a result of the ...
  • Laboratory Tests for Hot-Mix Asphalt Characterization in Virginia 

    Flintsch, Gerardo W.; Imad L. Al-Qadi; Loulizi, Amara; Mokarem, David W. (Virginia Center for Transportation Innovation and Research, 2005-06-01), VTRC 05-CR22
    This project reviewed existing laboratory methods for accurately describing the constitutive behavior of the mixes used in the Commonwealth of Virginia. Indirect tensile (IDT) strength, resilient modulus, static creep in ...
  • Fatigue Life Characterization of Superpave Mixtures at the Virginia Smart Road 

    Al-Qadi, Imad L.; Diefenderfer, Stacey D.; Loulizi, Amara (Virginia Center for Transportation Innovation and Research, 2005-08), FHWA/VTRC 06-CR1
    Laboratory fatigue testing was performed on six Superpave HMA mixtures in use at the Virginia Smart Road. Evaluation of the applied strain and resulting fatigue life was performed to fit regressions to predict the fatigue ...
  • Intersection Decision Support: Evaluation of a Violation Warning System to Mitigate Straight Crossing Path Collisions 

    Neale, Vicki L.; Perez, Miguel A.; Doerzaph, Zachary R. (Zachary Richard); Lee, Suzanne E.; Stone, Scott; Dingus, Thomas A. (Virginia Center for Transportation Innovation and Research, 2006-04), FHWA/VTRC 06-CR10
    This project entailed the design, development, testing, and evaluation of intersection decision support (IDS) systems to address straight crossing path (SCP) intersection crashes. This type of intersection crash is responsible ...

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