The Highway Code gives examples of the lines in normal use.
The Highways Authority must authorise all lines on the highway. The Department for Transport may allow special lines if they are experimental and under trial.
- show where there is a need to restrict parking
- help to ease traffic flow
- help to prevent obstructions on the highway.
There are two types used:
- double lines - marks a road where there is no waiting at any time.
- single lines - show a timed period that restrictions apply. Signs will show the actual times.
Yellow “blip” markings on the kerb show loading restriction. Signs will also be visible where applicable.
White lines give different types of information on lane use and directions.
Markings that travel in the same direction as the traffic inform drivers of approaching situations, for example:
- solid white line - do not cross
- lane line - turn right.
Lines that go across the road also give instruction, for example, stop or give way.
Markings travelling in the same direction as the traffic
Markings travelling across the traffic