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The Total Pavement Marking Maintenance Costs Attributed to Level-4 and Level-5 Connected and Automated Vehicles (CAV) in Australia Was Estimated at $1.55 Billion (USD) from 2020 to 2070.

Connected and Automated Vehicles (CAVs) have the potential to transform road transport by reducing crashes, enhancing productivity, freeing time for other activities, increasing road capacity as…
Content type
System Cost
Made Public Date
04/25/2024
Taxonomy (ARC-IT) Connected Eco-Driving (ST09)
Geolocation links
Australia

Perform Unmanned Aerial Vehicle (UAV)-Aided Bridge Inspections in Spring or Summer to Avoid Thin Branches that Could Reduce the UAV's Obstacle Avoidance Capabilities.

Optimize UAV-aided bridge Inspections by timing them in Spring or Summer to avoid thin branches that could reduce the UAV's vision-based obstacle avoidance capabilities. More leaves and denser…
Content type
Lesson
Date Posted
04/25/2024
Taxonomy (ARC-IT) Infrastructure Monitoring (MC09)
Geolocation links
Douglasville, Georgia   |   Calhoun, Georgia

Dynamic Speed Feedback Signs (DSFS) Can Lower Ramp Curve Entry Speeds by 4.5 mi/h Reducing Risk of Lane Departures When Installed 250 ft to 400 ft Upstream of Freeway Interchange Exit Ramps.

METHODOLOGY This study examined three commercially available DSFS signs at six different freeway interchange ramps in Michigan. The evaluation tested several aspects of the DSFS, including physical…
Content type
Benefit
Date Posted
04/24/2024
Taxonomy (ARC-IT) Speed Warning and Enforcement (TM17)
Geolocation links
Saugatuck

Variable Speed Limit (VSL) System Using AI-Based Algorithm Reduced Traffic Speed Variations by 32.7 Percent to Improve Safety at the Expense of a Slight 6.5 Percent Increase in Vehicle Hours of Delay on I-24 in Nashville.

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

Driving Simulator Study Found ITS and CAV-Enabled Commercial Motor Vehicles Improved Safe Distance to Roadside by 22 Percent Compared to Driver Response to Static Roadside Message Signs at Work Zones.

METHODOLOGY This study designed three simulated work zones to mimic real-life conditions on or near I-95 in Maryland: one with an arterial lane closure, one with a freeway lane closure, and one with…
Content type
Benefit
Date Posted
04/23/2024
Taxonomy (ARC-IT) Work Zone Management (MC06)
Geolocation links
Maryland, United States

Survey Study in Florida Found Mobile Transit App Cut Ticket Purchase Time for 75 Percent of Riders and Fare Collection Time for 68 Percent of Bus Operators.

METHODOLOGY The researchers in this study developed a series of hypotheses for evaluating the potential benefits of mobile fare payment technologies: H1: Mobile fare payment users increase the…
Content type
Benefit
Date Posted
03/31/2024
Taxonomy (ARC-IT) Transit Fare Collection Management (PT04)
Geolocation links
Tallahassee, Florida, United States

Automated Roadway Lighting Diagnosis Tool Provides Decision Support in Roadway Lighting Management in Florida, Helping to Decrease Nighttime Crash Frequency by 17 Percent.

METHODOLOGY The study used the matched case-control method (each case is paired with a control based on matching characteristics) to investigate the impacts of lighting patterns on nighttime…
Content type
Benefit
Date Posted
03/31/2024
Taxonomy (ARC-IT) Field Equipment Maintenance (SU11)
Geolocation links
Tampa, Florida, United States

Microsimulation Study Revealed Road Automation with Level Five Automated Vehicles Can Lead to up to 27 Percent Travel Time Savings.

METHODOLOGY This study evaluated the impacts of 100 percent CAV penetration on travel times and vehicle delays, applying the German Highway Capacity Manual's delay-flow relations and updating them…
Content type
Benefit
Date Posted
03/31/2024
Taxonomy (ARC-IT) Automated Vehicle Operations (VS16)
Geolocation links
Karlsruhe, Germany   |   Graben-Neudorf, Germany
ITS Deployment Evaluation

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