What does the white line along the side of the road indicate?

Explanation: A continuous white line is used on many roads to indicate the edge of the carriageway. This can be useful when visibility is restricted. The line is discontinued at junctions, lay-bys, and entrances to or exits from private drives.

Category: Road and traffic signs

References: The Official DVSA Guide to Driving: Section 6, Highway Code: Page 114, Know Your Traffic Signs: Page 65