Displaying 1 - 10 of 170

Content type

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

Missouri DOT’s V2V-Enabled Truck Mounted Attenuator Leader-Follower System Was Estimated to Cost $301,485 Per Unit, Considering System Integration, Maintenance and Support, and Training Costs.

Protecting the safety of work zone workers is a priority for local and state transportation agencies. Advancements in technology, such as automated leader-follower vehicle systems for truck mounted…
Content type
Made Public Date
01/31/2024
Taxonomy (ARC-IT) Work Zone Management (MC06)

Missouri Study Indicated That the Leader-Follower Truck Mounted Attenuator (TMA) System Effectively Managed Gap Distance, with an Average Gap Distance Difference between Actual and Desired Being -3.21 Feet for Mobile Work Zones in Kansas City.

METHODOLOGY The field test of this system collected and analyzed 12 hours of data across two deployments on US highways outside of major cities in Missouri, one in the day (Kansas City District) and…
Content type
Date Posted
08/31/2023
Taxonomy (ARC-IT) Work Zone Management (MC06)

Meta-Study Reviewing 67 Simulation or Field-Based Studies from Literature Reported an Average Capacity Increase of 59 Percent Due to Cooperative Adaptive Cruise Control.

METHODOLOGY In this study, the systematic review was conducted based on the following selection criteria: i) either ACC or CACC technologies or both, ii) both simulations and field tests, iii)…
Content type
Date Posted
08/30/2023

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
Date Posted
06/30/2023

Avoid Deploying Automated Truck-Mounted Attenuators (ATMA) on roundabouts or unconventional intersection designs Until further research and testing is done to successfully navigate through difficult pathways.

Recognize that operator training is essential and critical. The operation of ATMA relies on a two-vehicle setup involving a human-driven lead vehicle. The decisions made by the lead vehicle's driver…
Content type
Date Posted
06/30/2023
Taxonomy (ARC-IT) Work Zone Management (MC06)

Traffic Optimization for Signalized Corridor (TOSCo) Applications Can Reduce Vehicle Stop Delays by Approximately 50 Percent in Large Metropolitan Areas Where V2I and V2V Technology Market Penetration Increases.

METHODOLOGY The study used an off-the-shelf traffic simulation software, and calibrated the model based on travel time data available through the National Performance Management Research Data Set (…
Content type
Date Posted
04/28/2023
Taxonomy (ARC-IT) Traffic Signal Control (TM03)

Microsimulation Study Estimated up to 31 Percent Reduction in Average Delays and 40 Percent Increase in Traffic Capacity as Automated Vehicle Penetration Rates Increase.

METHODOLOGY The researchers recorded traffic flows using video cameras for two hours from 7 AM to 9 AM at each intersection of the network as well as traffic volume, queue lengths, traffic signal…
Content type
Date Posted
04/28/2023

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
Date Posted
04/03/2023

Simulator Study Found That Drivers Directed More Attention to the Road Ahead after Gaining Experience with Using Cooperative Adaptive Cruise Control.

Methodology Over the course of two weeks, 48 licensed drivers completed four experimental driving sessions in the simulator, during which they gained experience with different driver assistance…
Content type
Date Posted
09/28/2022