Swanley is a small town found in the North West of Kent. About five miles south of Dartford, it is a small commuter town that was largely built in the 1950s though there has been a settlement at the location since the opening of the railway. The town was formerly called Swanley Junction. In 1968, the towns by-pass opened and in the late 1990s, the M25 fork signs removed the mention of Swanley and the town complained so bitterly a new info sign was erected. The main junction for Swanley is the interchange of the same name.