K53 Prep

STOP/RY-GO sign

Regulatory R1.5
Where you'll see it
Usually at road works for temporary traffic control
What it means
These are two different signs, which are mounted back to back. It indicates whether you may proceed or must stop
What you must do
Stop if the STOP sign is displayed and move off or proceed with caution if safe when the GO sign is displayed

Source: Signs manual R1.5