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Integrate Self-Powered Sensors in Cooperative Intelligent Transportation Systems (C-ITS) to Provide Resilient Transportation Infrastructure Operation.

Integrate self-powered sensors to improve in-vehicle signage, speed limit, and weather condition information in C-ITS. This study concluded that this could be the most feasible option given the…
Content type
Lesson
Date Posted
10/30/2024
Taxonomy (ARC-IT) ITS Communications (SU07), Variable Speed Limits (TM20), Broadcast Traveler Information (TI01), In-Vehicle Signage (TI07)
Geolocation links
Worldwide

A Variable Speed Limit (VSL) System Using an AI-Based Algorithm on I-24 in Nashville Reduced Traffic Speed Variations by 32.7 Percent to Improve Safety with Limited Impacts on Vehicle Hours of Delay (VHD).

METHODOLOGY Researchers obtained data from commonly available Radar Detection Systems (RDS) on highways to shape the state input of each VSL controller unit. Regarding the action space of the agents…
Content type
Benefit
Date Posted
04/23/2024
Taxonomy (ARC-IT) Variable Speed Limits (TM20)
Geolocation links
Nashville, Tennessee, United States

Following the Implementation of an Overheight Vehicle Detection System, No Bridge Strikes Were Reported at the Historically Problematic Low-Clearance Overpass in Maine.

METHODOLOGY The DMS in Maine displays a variety of information, including weather and roadway conditions, special events, travel times, enforcement actions, and congestion management. For the VSLS…
Content type
Benefit
Date Posted
07/27/2023
Taxonomy (ARC-IT) Variable Speed Limits (TM20), Dynamic Lane Management and Shoulder Use (TM22), Oversize Vehicle Warning (VS11)
Geolocation links
Bangor, Maine

Combined Variable Speed Limit and Ramp Metering System along the Atlanta Beltway Estimated to Reduce Total Travel Time by About Eight Percent.

METHODOLOGY This study proposed a combined VSL-RM algorithm designed to maximize freeway capacity by mitigating the capacity drop phenomenon at merge bottlenecks. The optimal speed of the VSL-RM…
Content type
Benefit
Date Posted
03/22/2023
Taxonomy (ARC-IT) Traffic Metering (TM05), Variable Speed Limits (TM20)
Geolocation links
Atlanta, Georgia, United States
ITS Deployment Evaluation

1200 New Jersey Avenue, SE
Washington, DC 20590

its.dot.gov

U.S. Department of Transportation Office of the Assistant Secretary for Research and Technology (OST-R)
 
 
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