The Dartford-Thurrock River Crossing, commonly known as the Dartford Crossing and until 1991 the Dartford Tunnel, is a major road crossing of the River Thames in England, carrying the A282 road between Dartford in Kent in the south and Thurrock in Essex in the north. It consists of two bored tunnels and the cable-stayed Queen Elizabeth II Bridge.
This real world 3D terrain model was created for the development of signage and signalling prior, to the re shaping of the road system to improve the flow of traffic when the area converted from a Toll to Charge type payment system.
The road areas created, covered over 16 kilometres in length and many variations were created for the testing on a simulator, of the range of proposed methods to control speed, prepare and inform drivers and of new payment methods and road system layouts.
The project was done in conjunction with the Transport Research Laboratory.