Flashing Yellow Arrows

  In cooperation with the Nevada Department of Transportation (NDOT) and the Regional Transportation Commission (RTC), new four-head signal displays with flashing yellow arrow capability will be installed at more than 200 signalized intersections in unincorporated Clark County. The intersection upgrades will be completed in two phases:
Map Exhibit A (Phase 1-existing) Map Exhibit B (Phases 1 & 2 - all intersections)

The new four-head signal display has replaced the five-head signal display that has the circular green indication which makes left turns permissable after yielding. A flashing yellow arrow means a vehicle is allowed to enter the intersection and proceed with caution in making the left turn. As always, drivers must YIELD to oncoming traffic and pedestrians. The flashing yellow arrow then becomes a steady (non-flashing) arrow or a green arrow. Drivers should treat the steady yellow arrow just like a standard yellow light--prepare to stop or safely clear the intersection before the red light appears.

A national study conducted for the Federal Highway Administration demonstrated that the new indication helps to prevent crashes, increase intersection capacity and provides additional traffic management flexibility. For more information about the project, please review NDOT's Brochure.


What Are Flashing Yellow Arrow Turn Signals?

The Flashing Yellow Arrow is a turn signal configuration designed to improve driver safety. A 10-year Federal Highway Administration study (1993-2003) concluded that they help prevent and reduce crashes, improve traffic flow and offer additional traffic management flexibility.

How Do They Work?

When on, the flashing yellow arrow means a vehicle can enter an intersection to make the turn indicated by the arrow. The driver must yield to oncoming traffic and pedestrians, then proceed with caution. After it flashes, the arrow becomes a non-flashing yellow arrow or green arrow. Drivers should treat the steady yellow arrow like a yellow light – prepare to stop or safely clear the intersection.

Why Are States Implementing Them? 
The above-mentioned study, conducted by the National Cooperative Highway Research Program, reported that flashing yellow arrows: Were safer and more effective than other signals. Best conveyed to drivers the need to yield before turning left. Offered more versatility in terms of traffic management.

How Many States Have Them?

Forty-three states have installed flashing yellow arrows turn signals. The Federal Highway Administration estimates thousands of flashing yellow arrow signals have been installed nationwide.

When Were The First Flashing Yellow Arrows Installed in Southern Nevada?

The first flashing yellow arrow signal was installed in the City of Henderson in 2009. Since then, 229 have been installed throughout the Las Vegas Valley, with 186 more planned in the coming years.

Last modified on 2/14/2019 14:48