CTDOT Press Releases

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09/07/2023

CTDOT Evaluating Clearance Interval Timings at Hundreds of Municipally Owned Traffic Signals Across Connecticut

The Connecticut Department of Transportation (CTDOT) has initiated projects to evaluate and recalculate yellow and red change intervals for existing municipally-owned traffic control signals in Connecticut. After evaluating the signal timings, a contractor will implement any changes and new timing tables will be provided to the municipality. The locations included in these projects are a result of a subsequent project that requested and collected traffic signal plans from municipalities. There is no cost to municipalities that are participating in these projects.

A yellow change interval is the amount of time the yellow light is shown following a green light, alerting motorists that a red light is soon to follow. Here’s why proper timing is important:

  • If the yellow light is too short, drivers may not be able to stop in time and run the red light.

  • If the yellow light is too long, drivers may treat it as an extended green light. 

  • Red light running is a leading cause of serious crashes and a proper yellow change interval has been proven to reduce red light running.

 CTDOT has already implemented these type of projects on state owned traffic signals and is now aiming to further improve safety throughout Connecticut by evaluating and recalculating hundreds of municipally owned traffic signals. 

 A properly timed traffic signal can lead to a nearly 50 percent reduction in red light running and improve intersection safety. Studies have shown that proper timing can reduce crashes by as much as 14 percent,” said Connecticut Department of Transportation Project Manager Jonathan Corilla. “We are looking at hundreds of traffic signals owned by towns and cities throughout the state to improve safety for all roadway users.” 

 It’s important to CTDOT to ensure the public’s feedback and thoughts are heard and included. If anyone has any questions or comments on these projects, contact Jonathan J. Corilla, Project Manager, at (860) 594-2755 or Jonathan.Corilla@ct.gov.  Please reference the appropriate state project number.

  

State Project No. 0171-0474

The design plans for this project are expected to be completed in March 2024, with a tentative advertising date of May 2024. 

Click here to view a list of the locations in District 1 (Central Connecticut)

 

State Project No. 0172-0510

The design plans for this project are expected to be completed in April 2024, with a tentative advertising date of June 2024. 

Click here to view a list of the locations in District 2 (Eastern Connecticut)

 

State Project No. 0173-0522

The design plans for this project are expected to be completed in February 2024, with a tentative advertising date of April 2024. 

Click here to view a list of the locations in District 3 (Southwestern Connecticut)

 

State Project No. 0174-0453

The design plans for this project are expected to be completed in June 2024, with a tentative advertising date of August 2024. 

Click here to view a list of the locations in District 4 (Western Connecticut)



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OFFICE OF COMMUNICATIONS
860-594-3062
CTDOTMedia@ct.gov

Twitter: @CTDOTOfficial
Facebook: Connecticut Department of Transportation

 

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