Now showing items 1-10 of 28
Assessment of the Performance of Light-Emitting Diode Roadway Lighting Technology
(Virginia Transportation Research Council, 2015-10)
This study, championed by the Virginia Department of Transportation (VDOT) Traffic Engineering Division, involved a thorough investigation of light-emitting diode (LED) roadway lighting technology by testing six types of ...
Naturalistic Driving Study: Technical Coordination and Quality Control (SHRP 2 Report S2-S06-RW-1)
(Transportation Research Board, 2015)
Identification of Consented Driver Trips in the SHRP 2 Naturalistic Driving Study Data Set
(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 ...
Best Practices and Performance Assessment for Preventative Maintenance Treatments for Virginia Pavements
(Virginia Transportation Research Council, 2015-08)
Preventive maintenance has the potential to improve network condition by retarding future pavement deterioration. This report outlines guidelines for implementing a preventive maintenance policy for bituminous pavements. ...
Automated Vehicle Crash Rate Comparison Using Naturalistic Data
(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 ...
Safety, Operational, and Energy Impacts of In-vehicle Adaptive Stop Displays Using Connected Vehicle Technology
(Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC); 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 ...
Infrastructure Pavement Assessment & Management Applications Enabled by the Connected Vehicles Environment – Proof-of-Concept
(Research and Innovative Technology Administration; Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 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 ...
Examination of the Current Practice of Lighting in Virginia: Nighttime Work Zones and Improving Safety Through the Development of Nighttime Lighting Specifications
(Virginia Transportation Research Council, 2017-09)
This project evaluated current nighttime work zone lighting practices for limited-access highways and primary routes in Virginia through (1) an on-site evaluation of lighting levels in work zones; (2) an illuminance ...
Linear Cracking in Bridge Decks
(Virginia Transportation Research Council, 2018-03)
Concrete cracking in bridge decks remains an important issue relative to deck durability. Cracks can allow increased penetration of chlorides, which can result in premature corrosion of the reinforcing steel and subsequent ...
Researcher Dictionary for Safety Critical Event Video Reduction Data
(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 ...