KENNEWICK, Wash.--The only signal being changed is the yellow left-turn arrow.
Instead of a solid arrow, drivers will now see a flashing yellow arrow. On Thursday, crews were working at Columbia and Clover Island Drive, preparing to install the new signal.
Certain intersections like Columbia Drive and SR 397 already have the new flashing left-turn yellow arrows.
City engineers expect to convert one to two intersections each week.
Studies have shown flashing left-turn signals ease congestion and become stronger visual cues for drivers.
The project is funded by a $540,000 dollar Washington State Department of Transportation Intersection Safety Grant.
In coming weeks, expect flashing left-turn yellow arrows on Clearwater Avenue, Canal Drive and 10th Avenue.
The conversions should be finished by October 2008.