No vehicles over the height shown may pass the sign (height shown in metric and imperial units)
Location of mandatory height restriction ahead, with indication of an alternative route
To make a bridge more conspicuous, black and yellow bands may be added to the arches or beams and to the abutments
Level crossing with a gate or barrier
Level crossing without a gate or barrier
Bells suspended over the road at a railway crossing to give an audible warning to drivers of vehicles that exceed the safe height beneath electrified overhead cables
Long low vehicles may be at risk of grounding; drivers of such vehicles must phone before crossing
Countdown markers may be provided on the approach to a crossing. These divide the distance between the advance warning sign and the stop line into 3 equal parts; each sloping bar does not necessarily represent a distance of 100 yards
Road traffic signals at a level crossing
Flashing pedestrian signals used at some level crossings indicate that it is not safe to cross: pedestrians should stop at the pedestrian stop line