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Operate Test Vehicles at Varying Speeds to Ensure Proper Configuration of Wrong-Way Driving Prevention Systems.

Check the camera angle of the detection component and test different vehicle speeds for detection of Wrong-Way Drivers.  A few missed detections were found during test speeds of 30 and 40 mph.…
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Date Posted
11/29/2021

Develop a user-oriented system for displaying travel time messages on dynamic messages signs.

The objective of any travel time messaging system is to provide drivers with the necessary means to make informed travel decisions while in route to their destinations. To plan, deploy, and operate a…
Content type
Date Posted
10/31/2007

Optimize travel time messaging operations by improving the way in which data is collected, analyzed, and displayed.

For travel time messaging systems to be effective, data needs to be accurate and reflect real time conditions. Data collection and analysis must be done in a manner that is both quick and efficient,…
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Date Posted
10/31/2007

Use recommended practices to provide accurate travel time messages to the public using Dynamic Message Signs (DMS).

An examination of databases and a sampling of locations reveal at least 12 metropolitan areas that are providing travel time messages on DMS. But at least 25 other metropolitan areas are gathering…
Content type
Date Posted
01/21/2007

Transportation network company (TNC) usage is associated with decreased vehicle ownership and fewer single occupancy vehicle trips.

The study attempts to broaden the understanding of the interplay among emerging and established modes of transportation by approaching from several angles the question of how shared modes, and…
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Date Posted
09/12/2018

Case studies of several transportation departments updating traffic signal systems estimated at least 10 percent reduction in delays, 23 percent reduction in the number of stops, and 3.5 percent reduction in fuel consumption as a result of signal sys

Upgrading timing infrastructure and retiming corridors to provide improved traffic flow during peak hours in peak directions can result in significant reductions in delay, number of stops, fuel…
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Date Posted
10/02/2012

Initial Deployment Costs for a Wrong-Way Driving Prevention System at an Off-Ramp Ranged from $18,000 to $45,000.

Crashes due to wrong-way driving can occur when a vehicle enters an exit ramp in the opposite direction from the legal traffic flow and continues onto the highway. Researchers in Tennessee evaluated…
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Made Public Date
11/29/2021