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Modernizing bridge safety inspection with process improvement and digital assistance
(Virginia Center for Transportation Innovation and Research, 2004-01)
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 ...
Review and evaluation of models that produce trip tables from ground counts
(Virginia Center for Transportation Innovation and Research, 1996-02)
This research effort was motivated by the desires of planning agencies to seek alternative methods of deriving current or base year Origin-Destination (O-D) trip tables without adopting conventional O-D surveys that are ...
Using high-speed texture measurements to improve the uniformity of hot-mix asphalt
(Virginia Center for Transportation Innovation and Research, 2003-05-01)
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 ...
Live Stop-Controlled Intersection Data Collection
(Virginia Center for Transportation Innovation and Research, 2007-12)
This report describes an experimental investigation performed at live intersections to gather infrastructure-based naturalistic driver approach behavior data. This data was collected and analyzed with the goal of understanding ...
Composite Pavement Systems: Synthesis of Design and Construction Practices
(Virginia Center for Transportation Innovation and Research, 2008-11-01)
Composite pavement systems have shown the potential for becoming a cost-effective pavement alternative for highways with high and heavy traffic volumes, especially in Europe. This study investigated the design and performance ...
Potential Reduction in Large Truck and Bus Traffic Fatalities and Injuries Using Lytx's DriveCam Program
(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 ...
Assessment of the Durability of Wet Night Visible Pavement Markings: Wet Visibility Project Phase IV
(Virginia Center for Transportation Innovation and Research, 2012-06)
This project encompassed a research effort to establish the durability of pavement markings in an on-road installation. Six marking technologies were installed on a portion of Route 460 in Blacksburg, Virginia. A human ...
Wet night visibility of pavement markings :executive summary
(Virginia Center for Transportation Innovation and Research, 2004-10)
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 ...
Development of a Framework for Evaluating Yellow Timing at Signalized Intersections
(Virginia Center for Transportation Innovation and Research, 2011-02-01)
Studies show that the proper design of clearance intervals has significant implications for intersection safety. For example, in 2001, approximately 218,000 red-light-running crashes occurred at signalized intersections ...
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 ...