Road ahead has a structure that limits vehicle width to 5m.
Where you will see it
Before a structure that pinches the road, with the width it will pass, 5 m, printed on the sign.
What to do
Hold the 5 m against your vehicle and whatever it is carrying. Anything wider takes another road. Anything close to the limit goes through slowly and squarely in the middle of the gap, with a look first if you are unsure.
