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Next Generation Transit Signal Priority with Connected Vehicle Technology
(Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-01-30)
This project utilized connected vehicle (CV) technology allowing two-way communication among vehicles and infrastructure to develop a next-generation Transit Signal Priority (TSP) system that does not have to rely on ...
Identification of Railroad Requirements for the Future Automated and Connected Vehicle (AV/CV) Environment
(SAFE-D: Safety Through Disruption National University Transportation Center, 2020-06)
The Federal Rail Administration (FRA) Highway-Rail Grade Crossing Inventory database from 2019 states that there are approximately 127,000 public, at-grade highway-rail grade crossings in the U.S. Despite this large number ...
4U Lighting – Cooperative Headlighting
(National Surface Transportation Safety Center for Excellence, 2019-10-31)
The purpose of this project was to evaluate the effectiveness of an alternative cooperative headlighting method, dubbed 4U Lighting. A human-subjects study was conducted in which 12 participants 65 or older observed ...
Radar-Based Over-the-Air Message Generator for Accelerating Connected Vehicle Deployment
(Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-10-15)
The market penetration levels needed to realize the full safety, economic, and environmental benefits of connected vehicle (CV) systems will not be met for some time. During the transition, it would be beneficial if data ...
Measuring User Acceptance of and Willingness-to-Pay for CVI Technology
(Connected Vehicle/Infrastructure University Transportation Center, 2016-09-30)
The increased prevalence of Connected Vehicles (CVs) is expected to provide significant safety benefits to roadway users. Estimates indicate that the use of CVs will reduce non-impaired driver crashes by 80 percent. To ...
Human Factors Evaluation of an In-Vehicle Active Traffic and Demand Management (ATDM) System
(Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-02-15)
This research study focused on the development and subsequent evaluation of an in-vehicle Active Traffic and Demand Management (ATDM) system deployed on Interstate 66 in Northern Virginia. The ATDM elements inside the ...
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 ...
Design and Evaluation of a Connected Work Zone Hazard Detection and Communication System for Connected and Automated Vehicles (CAVs)
(Safe-D: Safety Through Disruption, 2019-08)
Roadside work zones (WZs) present imminent safety hazards for roadway workers as well as passing motorists. In 2016, 764 fatalities occurred in WZs in the United States due to motor vehicle traffic crashes, which are the ...
Prototyping and Evaluating a Smartphone Dynamic Message Sign (DMS) Application
(Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2015-12-15)
Traveler Information Systems are designed and operated by transportation agencies to provide travelers with real-time traffic information, enabling them to make better travel decisions. One of the most commonly used ways ...
Connected Vehicle Enabled Freeway Merge Management – Field Test
(Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-01-01)
Freeway congestion is a major problem of the transportation system, resulting in major economic loss in terms of traffic delays and fuel costs. With connected vehicle (CV) technologies, more proactive traffic management ...