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Replacing DSRC Roadside Units With C-V2X Units on a 28-Mile Section of I-24 in Nashville Estimated to Cost $1.8 Million.

The I-24 SMART Corridor V2X Roadmap outlines Tennessee DOT’s planned deployment of V2X technologies to enhance safety and mobility along the 28-mile corridor. Existing ITS infrastructure included 150…
Content type
System Cost
Made Public Date
07/31/2025
Taxonomy (ARC-IT) Infrastructure Monitoring (MC09), Connected Vehicle Traffic Signal System (TM04), V2V Basic Safety (VS02), Curve Speed Warning (VS05), Queue Warning (VS08), Reduced Speed Zone Warning / Lane Closure (VS09), Spot Weather Impact Warning (WX03)
Geolocation links
Nashville, Tennessee, United States

Integrate Cooperative Automated Transportation Data with Traditional Sensors for Effective Traffic Management During Low Connected and Automated Vehicle Market Penetration.

Key takeaways from the study are listed below. Integrate CAT data with traditional sensors to provide comprehensive traffic management, particularly during the transition period when CAV market…
Content type
Lesson
Date Posted
09/30/2024
Taxonomy (ARC-IT) Performance Monitoring (DM02), ITS Communications (SU07), Connected Vehicle Traffic Signal System (TM04), Traffic Metering (TM05), Regional Traffic Management (TM07), Traffic Incident Management System (TM08), Speed Harmonization (TM21), Broadcast Traveler Information (TI01), Personalized Traveler Information (TI02), Queue Warning (VS08)
Geolocation links
Los Angeles, California, United States

Connected and Automated Vehicle Data-Enhanced Ramp Metering Simulated on Corridor I-210 Reduced Travel Time by 12 Percent, Speed Variations by Five Percent, and Number of Stops on Mainline by 25 Percent.

METHODOLOGY The case study developed queue-informed and incident-aware enhanced ramp-metering algorithms with CAV data. The former enhanced algorithm employed more accurate on-ramp queue estimations…
Content type
Benefit
Date Posted
09/30/2024
Taxonomy (ARC-IT) Performance Monitoring (DM02), ITS Communications (SU07), Vehicle-Based Traffic Surveillance (TM02), Connected Vehicle Traffic Signal System (TM04), Traffic Metering (TM05), Regional Traffic Management (TM07), Traffic Incident Management System (TM08), Speed Harmonization (TM21), Broadcast Traveler Information (TI01), Queue Warning (VS08)
Geolocation links
Los Angeles, California, United States

Advanced Queue Detection Systems Installed at Four Work Zones in Nebraska Were Estimated To Cost $166,225 per Work Zone for a 6-Month Project on I-80.

The system cost analysis was based on a typical AQD system including one CCTV camera, three non-intrusive detection, and two pairs (total of four) of PDMS. Based on an estimation of six-month…
Content type
System Cost
Made Public Date
12/22/2023
Taxonomy (ARC-IT) Dynamic Roadway Warning (TM12), Queue Warning (VS08)
Geolocation links
Nebraska, United States

Australian Study on Cooperative ITS Technologies Showed a Four to Nine Percentage Point Increase in Technology Usefulness Rating, Based on User Questionnaires Comparing Control and Treatment Groups.

METHODOLOGY The participants were randomly assigned into either of two groups: Treatment Group that had an HMI receiving warnings, and Control Group that had an inactive HMI. Over nine months, both…
Content type
Benefit
Date Posted
12/18/2023
Taxonomy (ARC-IT) Dynamic Roadway Warning (TM12), Autonomous Vehicle Safety Systems (VS01), Queue Warning (VS08), Reduced Speed Zone Warning / Lane Closure (VS09), Vulnerable Road User Safety (VS12)
Geolocation links
Ipswich

Advanced Queue Detection System Using Portable Dynamic Message Signs Reduced Speeds of Vehicles Approaching Interstate Work Zones in Nebraska by up to Seven Miles Per Hour.

METHODOLOGY In this study, portable traffic data capturing units, consisting of cameras and Wi-Fi receivers as detectors, were utilized through a private company. Cameras within the portable units…
Content type
Benefit
Date Posted
06/30/2023
Taxonomy (ARC-IT) Dynamic Roadway Warning (TM12), En-Route Guidance (TI03), Queue Warning (VS08)
Geolocation links
Statewide, Nebraska, United States

Indiana DOT's 26 Month Pilot Study Shows That Deployment of Queue Warning Trucks Ahead of Interstate Work Zones to Alert Motorists of Queued Traffic Reduced Hard Braking Events by 80 Percent.

METHODOLOGY A comparative analysis was conducted to evaluate the deployment of queue trucks in interstates of Indiana, by comparing the telematic data collected from queue warning trucks with the…
Content type
Benefit
Date Posted
04/30/2023
Taxonomy (ARC-IT) Queue Warning (VS08)
Geolocation links
Indiana, United States

Simulation Study with Real-world Signal Control Software Found Freight Signal Priority for Connected and Automated Vehicles Has the Potential to Reduce Truck Intersection Delays Between 10 and 70 Percent, with Minimal Impacts on Other Traffic.

METHODOLOGY This project used a communication process which uses latitude/longitude coordinates of CAVs and intersections to define the detection zone and enables information sharing. Once the…
Content type
Benefit
Date Posted
02/23/2022
Taxonomy (ARC-IT) Queue Warning (VS08), Traffic Signal Control (TM03), Integrated Decision Support and Demand Management (TM09), Freight Signal Priority (CVO06)
Geolocation links
Statewide, Wyoming, United States   |   Salt Lake City, Utah, 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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