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PennDOT Announces First Use of Flashing Yellow Arrow Signals in Mercer County


The Pennsylvania Department of Transportation (PennDOT) today announced it will be activating a new type of left turn signal at two intersections along East State Street (Route 3008) in the City of Hermitage, Mercer County.
Flashing Yellow Arrow signals, which have been proven to improve left turn safety, will be placed at the intersections of East State Street and Ellis Avenue, and East State Street and North Kerrwood Drive/ South Kerrwood Drive.
The new intersection traffic signals are tentatively scheduled to be turned on January 15 and 16, 2019, weather permitting.
Flashing Yellow Arrow signals were first introduced in Pennsylvania in 2016, and have become commonplace in many states across the United States over the last 10 years. Based on many national studies and transportation agency testimonials, Flashing Yellow Arrow signals improve left-turning safety by helping motorists recognize that they should yield while making left turns when there is oncoming traffic and pedestrians. 
Hermitage is the second municipality in northwest Pennsylvania to receive flashing yellow signals. Similar traffic lights were installed last year at several intersections in the City of Meadville, Crawford County.
According to research funded by the Federal Highway Administration, left turn crashes can be reduced by as much as 20 percent after the installation of the Flashing Yellow Arrow signal. Also, Flashing Yellow Arrow signals can be adjusted depending on the time of day, reducing delays and improving mobility.
The current signal configuration features a green left arrow to allow left turns followed by a yellow arrow and then a circular green indication. The new configuration will feature four left turn arrows:
• Steady green left arrow meaning the left turn is protected and oncoming traffic is to stop.
• Flashing yellow arrow meaning drivers must yield to oncoming traffic and pedestrians before completing the left turn.
• Steady yellow arrow meaning left turns should stop because the signal is about to change to red.
• Steady red arrow meaning left turns must stop and cannot proceed.
More information on Flashing Yellow Arrow signals and other traffic signal initiatives is available at in the traffic signals section of “Travel In PA” or at
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MEDIA CONTACT: Jill Harry, 814-678-5035
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