City of Mesa
Official Website of the City of Mesa, Arizona
City of Mesa News Article
Mesa activates new flashing yellow left turn arrow signals
By: James McIntyre
11/14/12 10:05 AM

            Mesa drivers will see new flashing yellow left turn arrow signals for north and southbound traffic at the intersection of Country Club Drive and Juanita Avenue on Wednesday, November 14.  The new signals are expected to improve safety, lessen traffic delays, and reduce driver confusion when making north or southbound left turns at the intersection. 
This will be the fourth location in the City to receive the safety improvement. Flashing yellow left turn arrow signals are currently operating at Gilbert Road and Inverness Avenue, Ellsworth Road and US 60, and Signal Butte Road and US 60.
“A left turn can be one of the most difficult movements a driver has to make so these devices will assist our City goal of providing safer left turns for our driving public,” Transportation Department Traffic Studies Supervisor Renate Ehm said. “An extensive study conducted by the National Cooperative Highway Research Program (NCHRP) concluded that the flashing yellow arrow is safer and more effective than the simple circular green light at conveying to drivers that they need to yield before turning left.”
Other flashing yellow left turn arrows in Mesa are also being considered for the following intersections:
 •Baseline Road and Lindsay Road
                         •Broadway Road and Stapley Drive
•Broadway Road and Higley Road
The traffic signal looks slightly different adding another arrow indicator. When the yellow arrow is flashing, that means left turns are permitted, but motorists must first yield to oncoming traffic and pedestrians before proceeding through the intersection. The flashing yellow arrow does not replace the solid yellow arrow and its meaning but it does replace the green “ball” indication as an indication for a yielding left turn. Drivers should always remember that a flashing yellow arrow means turn with caution. 
For more information about flashing yellow left turn arrows and to view a video of how the new signal operates, visit the Transportation Department’s flashing yellow left turn arrow webpage.

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