Products and services
- Signal training
- Signal publications and special provisions
- Signal plan sheets
- Rural intersection conflict warning systems (RICWS)
- Anchor rod tightening
Flashing yellow arrows
Flashing yellow arrow traffic signals feature a flashing yellow arrow in addition to the standard red, yellow and green arrows. When illuminated, the flashing yellow arrow allows waiting motorists to make a left-hand turn after yielding to oncoming traffic. Otherwise, these traffic signals work the same as traditional signals. More about flashing yellow arrows.