A solid red arrow (conventional) means STOP. Drivers turning left must stop.   

A solid yellow arrow (conventional) means stop if it is safe to do so.  

A flashing yellow arrow (NEW) means turns are permitted, but you must first yield to oncoming traffic and pedestrians and then proceed with caution.  

A solid green arrow (conventional) means turn left. Oncoming traffic must stop. Do not go straight.

The flashing yellow arrows will move more vehicles through an intersection with less delay by allowing drivers to turn left when there is a gap in the oncoming traffic without having to wait for the green arrow. Drivers making left hand turns during a flashing yellow arrow must yield to oncoming traffic and pedestrians and turn with caution.

Here's what the new signals will look like and what they mean

Flashing yellow arrows are coming to town. As part of the city-wide signal light upgrade and synchronization project, the City of El Centro will install flashing yellow left turn arrows in addition to the standard red, yellow and green arrows, at the intersection of Imperial Avenue and State Street. The flashing yellow arrows are part of an effort to increase traffic flow and maintain safety.

NEW!! Flashing Yellow Arrows (FYA)