Railway crossing

Where you'll see it

On any road close to a railway line

What it means

To that there is a railway crossing with one (W403) or more tracks (W404) ahead

What you must do

Slow down and if a train is approaching the crossing, stop. If there is no stop line or sign, the driver should stop no closer than 3m from the nearest track, and not on the track or in the railway reserve

Source: Signs manual W403, W404