Your vehicle, including any load being carried, must be lower than the height shown on the warning sign. It is very important to know the height of your vehicle and of any load being carried before you start your journey.
You may also encounter advance information signs with warnings such as the signs below.
Advance information sign for low clearance railway bridge
Bridge over the railway
This is an example of a bridge over the railway. There can be restrictions on vehicles entitled to use these bridges. These restrictions will usually be related to vehicle weight, width and number of axles.