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[INDOT - East Central] Flashing Yellow Arrow Joining Temporary Signal on U.S. 31 (Westfield)
Start Date: 3/27/2014Start Time: 12:00 AM
End Date: 4/3/2014End Time: Midnight
Entry Description

Flashing Yellow Arrow Joining Temporary Signal on U.S. 31


WESTFIELD – The Indiana Department of Transportation (INDOT) plans to install a new left-turn signal on U.S. 31 at 196th Street that provides a flashing yellow arrow. This type of turn signal allows left-turning traffic to yield the right-of-way to oncoming traffic and pedestrians and turn when a suitable gap is available.


A temporary traffic signal at 196th Street was recently activated to help regulate traffic flow through the work zone during the upgrade of U.S. 31 to freeway standards. In early April, traffic will be shifted so that one lane of traffic in each direction will share the northbound half of the highway. Adding the flashing yellow arrow to the temporary signal is intended to allow more vehicles to make left turns during each signal cycle.


The new signal improves efficiency by using cross-traffic gaps for more left turns. When waiting in a dedicated left-turn lane, traffic may first see a flashing yellow arrow, depending upon signal phasing. Should there not be suitable gaps in oncoming through traffic and sensors embedded in the left turn lane detect cars waiting, the flashing yellow arrow could change to a steady green arrow. This would stop oncoming traffic, allowing a “lagging” protected left turn at the end of the signal cycle.


National research has shown that the flashing yellow signal is more intuitive for drivers, results in fewer crashes and moves traffic more efficiently at an intersection. The signals are being introduced nationwide and have been adopted by most states. INDOT installed the first flashing yellow arrow signals in Indiana last year and plans to replace most of its five-section or “doghouse” left-turn signals with the new four-section signals featuring a flashing yellow arrow.


More information about the flashing yellow left-turn arrow is available on INDOT’s web site at

Location Information:
Hamilton County
Flashing Yellow Arrow Signal
Entry Type:
Press Release
Entry Category:
  • Alerts and Notification
  • Announcements
  • Media Advisory
  • Category:
  • Residents
  • Visiting & Playing
  • Agency Name
    Transportation, Indiana Department of

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