London is the starting point for a number of motorway routes. The M25 is an orbital motorway which enables vehicles to avoid travelling through central London and is one of the busiest motorways in Europe.
The scheme applies to diesel engine vehicles over 1.205 tonnes, which must be registered with TfL. The scheme does not affect cars or motorcycles. Owners of vehicles that do not meet these requirements must pay a fee of up to £200 with failure to pay resulting in a fine. A limited range of vehicles are exempted or able to obtain a discount from the charge. Payment of the LEZ charge is in addition to any congestion charge required.
Through his leadership of the MR, SER and MS&LR, Watkin had the amibtion to construct a new mainline railway connecting the north of England, via London and Kent to the continent. Although his plans for a channel tunnel to be constructed by his Anglo-French Submarine Railway were never realised, the MS&LR constructed its London extension in the 1890s from Annesley, Nottinghamshire to the MR's station at Quainton Road in Buckinghamshire to a continental loading gauge. Reflecting its enhanced connections the MS&LR changed its name to the Great Central Railway in 1987.
To encourage tourist day-trips on the MR, Watkin planned a pleasure grounds at Wembley Park, with a large tower, "Watkin's Tower", intended to be larger than the Eiffel Tower. The park opened in 1896, but because of cost and structural problems, the tower was never completed and was demolished after Watkin's death. The site was subsequently used for Wembley Stadium.