What it means
Variable-message rotating disc (VM4) that displays the speed limit currently in force. It is a mechanical form of the R201 speed limit sign.
What to do
- Obey the speed limit face showing now; do not rely on what the disc showed earlier.
- Treat a change of face as a new limit from that point onward.
In the K53 test
VM4 still means R201: the number on the face currently displayed is the legal maximum. An earlier face has no force.
Where you will see it
Wherever a variable-message R201 disc is installed; obey the face currently displayed.
