High Quality Content by WIKIPEDIA articles! London is a large but congested city. The public transport system is well developed and world-famous but operates at capacity, can be unpleasant to use and is relatively expensive. A congestion charge is made for motorists to enter central London during busy times. For these reasons and others, walking has become increasingly popular for both recreation and as a means of transport in the capital. In addition, London is relatively flat, not especially rainy despite tourist mythology, and is blessed with pavements on most roads.