Displaying 1 - 10 of 209

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Lab-Test Results Showed that Vision-Based Red Light Violation Warning Application Combined with Assured Green Period Could Reduce Red-Light Running by 93 Percent.

METHODOLOGY The test plan for three applications considered two RSE configurations: one using FHWA's open source V2X Hub middleware, the other relying on built-in RSE features. Two data capture…
Content type
Date Posted
04/25/2024

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
Date Posted
04/23/2024
Taxonomy (ARC-IT) Work Zone Management (MC06)

Illinois Study Found Automated Truck Platooning Powered by an Artificial Intelligence Model Can Reduce Average Fuel Consumption by 10 Percent and Delivery Cost by 26.5 Percent.

METHODOLOGY The study used the pre-trained surrogate model to determine the optimal platooning configuration to minimize fuel consumption under different wind scenarios. The performances of four…
Content type
Date Posted
03/31/2024

Microsimulation of A Signalized Intersection in Florida Estimated that Connected Vehicles Can Reduce Travel Times by up to 17 Percent at Full Penetration Due to Increased Likelihood of Arriving-On-Green.

METHODOLOGY The study leveraged the existing application programming interface (API) capabilities of the traffic simulation tool to emulate the CAV operations. Three simulation cases were considered…
Content type
Date Posted
01/29/2024

The Estimated Annual Cost to Operate a Port in a Major Urban Area with Level 4 Automated Trucks in Queue Ranges from $75.1million to $123.4 million.

As freight imports to the US continue to increase, several US agencies are seeking ways to improve the efficiency of drayage trucking at ports by evaluating the impacts of Intelligent Transportation…
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Made Public Date
01/26/2024

Driving Simulation Study on V2I Technologies Found Audio Warnings Effective in Reducing Driver Speed by Approximately 11.4 Percent.

METHODOLOGY In this study, four specific scenarios were tested in driver simulation: (i) BASE: Heavy rain without warning, (ii) AUDIO: Heavy rain with in-vehicle audio warning, (iii) SCREEN: Heavy…
Content type
Date Posted
12/27/2023

Signal Priority Tested on Connected School Buses in Fulton County Resulted in a 40.4 Percent Decrease in Number of Stops and 13.3 Percent Reduction in Travel Time.

METHODOLOGY The study collected data in 2022 for a month prior to deployment of the technology, and then another month while the CV technology was implemented. Data for the analysis was collected…
Content type
Date Posted
11/17/2023
Taxonomy (ARC-IT) Transit Signal Priority (PT09)

Connected Vehicle Technology Was Deployed on School Buses and at Intersections in Georgia For Approximately $5,000 per Bus and $5,000 per Intersection.

Traffic signal priority (TSP) granted by communications between connected vehicles and the infrastructure has the potential to increase the mobility and efficiency of designated vehicles. Connected…
Content type
Made Public Date
11/17/2023
Taxonomy (ARC-IT) Transit Signal Priority (PT09)

Anticipate Potential Additional Deployment Time Required for Registering On-Board Units with the Security Credential Management System for Cybersecurity.

Anticipate potential additional deployment time required for registering on-board units (OBU) with the SCMS for cybersecurity. While the SCMS offers a secure and privacy-preserving method for V2X…
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Date Posted
10/30/2023

An Agent-Based Simulation Model of Automated Vehicles in San Francisco Estimated That Shared-Ride Home Pick-Up Services Would Result in a Cost Savings Benefit for 33 Percent of Trips With Human Drivers and 73 Percent of Trips With Fully Automated Vehicles

METHODOLOGY Six simulation scenarios were considered, assuming 100 percent market penetration of personal AV in the same horizon year as the base case scenario for the MTC-ABM: (i) Doubled highway…
Content type
Date Posted
09/29/2023