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Conduct Durability Tests to Ensure Antenna Mounting Supports Proper Connected Vehicle Communications for Large Vehicles.

Conduct interoperability test to identify potential issues that would require resolution prior to the sites advancing to an operational phase. The three-day testing event was a major victory for the…
Content type
Lesson
Date Posted
02/29/2024
Taxonomy (ARC-IT) Connected Vehicle System Monitoring and Management (SU01), ITS Communications (SU07), Connected Vehicle Traffic Signal System (TM04)
Geolocation links
Wyoming, United States   |   New York City, New York, United States   |   Tampa, Florida, United States

Wyoming DOT's Connected Vehicle Pilot Deployment Study Estimated a Savings of 46.5 Gallons of Diesel in Idling for Trucks Per Road Closure.

METHODOLOGY In this study, the input-output analysis took into account capacity and demand to estimate the total amount of delay associated with closing sections of I-80. The researchers used Average…
Content type
Benefit
Date Posted
06/30/2023
Taxonomy (ARC-IT) Road Weather Information for Freight Carriers (CVO10), V2V Basic Safety (VS02), Situational Awareness (VS03), Road Weather Motorist Alert and Warning (VS07), Spot Weather Impact Warning (WX03)
Geolocation links
Wyoming, United States

The Wyoming CV Pilot Found that Over 50 Percent of Drivers Given a Work Zone or Winter Weather Alert Reduced their Speed.

METHODOLOGY The study utilized a “Before-After” approach to quantitatively compare corridor data under baseline conditions (collected from December 2016 - November 2017) with data collected during…
Content type
Benefit
Date Posted
04/03/2023
Taxonomy (ARC-IT) Road Weather Information for Freight Carriers (CVO10), V2V Basic Safety (VS02), Situational Awareness (VS03), Road Weather Motorist Alert and Warning (VS07), Reduced Speed Zone Warning / Lane Closure (VS09), Spot Weather Impact Warning (WX03)
Geolocation links
Statewide, Wyoming, United States

Manage Deployment Risks Related to Connected Vehicle Technology Maturity by Reducing Exposure to External Uncertainties and Adding Testing at an Earlier Stage.

Broaden the definition and concept of technical maturity to increase stakeholder knowledge and allow for better risk management. The lack of technology maturity resulted in challenges such as…
Content type
Lesson
Date Posted
12/28/2022
Taxonomy (ARC-IT) V2V Basic Safety (VS02), Intersection Safety Warning and Collision Avoidance (VS13)
Geolocation links
Wyoming, United States   |   New York City, New York, United States   |   Tampa, Florida, United States

Implement a Quality Check Process with Active Participation by Agency Staff and Partnering with User Community for Detecting Inaccurate System-Generated Traveler Information Messages.

Use existing standards in the system architecture and design process. It is important to ensure a common understanding and interpretation of standards by the technology vendors and application…
Content type
Lesson
Date Posted
11/30/2022
Taxonomy (ARC-IT) Broadcast Traveler Information (TI01), Road Weather Motorist Alert and Warning (VS07)
Geolocation links
Statewide, Wyoming, United States

Before-and-After Study of Freeway Variable Speed Limit Installations Estimated Crash Reductions of 34 Percent in Wyoming and 29 Percent in Georgia.

Methodology The potential to reduce crashes was assessed by estimating crash modification factors (CMFs) associated with the safety improvement strategy in terms of total, fatal, and injury, and…
Content type
Benefit
Date Posted
06/16/2022
Taxonomy (ARC-IT) Variable Speed Limits (TM20)
Geolocation links
Statewide, Georgia, United States   |   Statewide, Virginia, United States   |   Statewide, Wyoming, 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

Simulation Study Estimates That a Fleet of Connected Vehicles Would Improve Safety Benefits from Weather-Responsive Traffic Management by 20 Percent in Severe Weather, As Measured by Inverse Time-to-Collision.

Methodology Three weather-responsive management strategies (WRMS) for I-80 in Wyoming were evaluated using a framework consisting of a simulation platform network module, a simulation manager…
Content type
Benefit
Date Posted
02/18/2022
Taxonomy (ARC-IT) Roadway Automated Treatment (MC03), Personalized Traveler Information (TI02), Weather Information Processing and Distribution (WX02), Spot Weather Impact Warning (WX03), Winter Maintenance (MC04), Variable Speed Limits (TM20)
Geolocation links
Wyoming, United States   |   Chicago, Illinois, United States

Preliminary connected vehicle work zone driving simulator experiment revealed that traveler information messages improved mean time-to-collision by approximately 40 percent and lowered mean deceleration to avoid a crash by approximately 19.3 percent.

Content references source material no longer available at its original location.
The results showed that average speed profiles under CV scenarios were generally lower than under baseline scenarios, particularly for winter conditions (snowy and severe weather). The variance of…
Content type
Benefit
Date Posted
10/27/2020
Taxonomy (ARC-IT) Broadcast Traveler Information (TI01)
Geolocation links
Laramie, Wyoming, United States   |   Walcott, Wyoming, United States

Connected vehicle warning systems should provide drivers with actionable information that supplements in-vehicle alerts.

CV warnings are effective, but designers should be sure to give drivers actionable information along with a warning. Simply alerting drivers to upcoming bad weather conditions "did not prompt…
Content type
Lesson
Date Posted
02/25/2020
Taxonomy (ARC-IT) Roadway Automated Treatment (MC03), Traffic Information Dissemination (TM06), Weather Information Processing and Distribution (WX02), Spot Weather Impact Warning (WX03)
Geolocation links
Statewide, Wyoming, United States
ITS Deployment Evaluation

INTELLIGENT TRANSPORTATION SYSTEMS JOINT PROGRAM OFFICE

1200 New Jersey Avenue, SE
Washington, DC 20590

its.dot.gov

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