General rules, techniques and advice for all drivers and riders · Multi-lane carriageways
Where a single carriageway has four or more lanes, use only the lanes that signs or markings indicate.
A dual carriageway is a road which has a central reservation to separate the carriageways.
In the Highway Code, MUST and MUST NOT identify legal requirements. Advice using should, should not, do or do not can still be used as evidence in court proceedings under the Traffic Acts to establish liability. The introduction explains this distinction.
The Code reads in order, and each of these names the rule it goes to rather than saying only ‘next’.
The rules the Code files beside this one, in its order.
The other groups in this part of the Code, and the rest of it.