A2 road (Great Britain)

The A2 is a major road in southern England, connecting London with the English Channel port of Dover in Kent. This route has always been of importance as a connection between the British capital of London and sea trade routes to Continental Europe. It was formerly known as the Dover Road.

Unlike the other single digit A-roads in Great Britain, the A2 does not form a zone boundary (in this case between Zone 1 and Zone 2). The Zone 1/2 boundary is the River Thames.

More information on the Wikipedia page