Glasgow Daily Times, Glasgow, KY

Local News

September 1, 2011

Outer loop section opened to public

GLASGOW — A small portion of the Glasgow outer loop is now open to traffic,  including the dedicated left turn lane directing motorists onto U.S. 31E. Motorists have already been using the small section from U.S. 31E to Loden Road without the benefit of this turn lane.

Motorists driving north on this new section of the outer loop will notice a different layout for the left turn lane directing them from the outer loop onto U.S. 31E.

The majority of turn lanes normally have a painted line to separate those turning left from the other lanes of traffic. In this case, a depressed median has been installed on the new roadway separating the left turn lane from the through lanes.

Motorists will need to be prepared to merge into the left turn lane prior to reaching the depressed median. The material used in the depressed median will not be a suitable surface for driving.

The depressed medians will be filled with rock to assist with drainage but the greater significance of these medians is to create positive offset left turn lanes; thereby increasing sight distance and offering a clear view of oncoming traffic for those attempting to turn left at this approach.

Another new item to this intersection is the installation of yellow flashers for both approaches to the outer loop. The traffic light includes a flashing yellow arrow, which indicates that motorists are allowed to proceed with caution but must yield to oncoming traffic.

The illustration below reflects the signal head for these two left turns. There will be no green left turn phase. Due to the low volume of traffic, motorists turning left will be able to move through the signal on the yellow flashing arrow.

A steady red arrow means stop. Drivers turning left must stop.

A steady yellow arrow means the signal is getting ready to turn to red.  Drivers turning left should stop if it is safe to do so.

A flashing yellow arrow means left-turns are permitted.  Drivers may turn left but must first yield to oncoming traffic and pedestrians and then proceed with caution.

“Studies have indicated this signal helps reduce left turn crashes at intersections,” said Greg Meredith, chief district engineer for the Bowling Green highway district. “The new light has the potential to improve safety because it more clearly signals to drivers that they can turn only when there is no oncoming traffic.”

The flashing yellow arrow is used to replace the permissive green “ball,” traditionally used in left-turn traffic signal configurations. Flashing yellow arrows indicate a permissive move for drivers turning left, meaning they can make a left turn, but they have to yield to oncoming traffic.

The remaining new sections of the outer loop will not be opened at this time due to additional work that still needs to be completed including signing, seeding, shoulder work and striping.

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