A Desirable urban form
Among the elements that make a town function, the transport system is essential; it comprises the infrastructure for private conveyance as well as the infrastructure and services of public transport. If the transport system is inadequate the spatial organisation does not function as expected: traffic facilities may be under-utilised in one place and unable to satisfy requirements elsewhere. The only way to avoid such a state of affairs is to integrate (simultaneously and in mutual consideration) planning of the spatial organisation and the transport system. The organisation of space and the creation of a transport system largely determine the structure of an urban area and are irrevocable to a high degree. There is a general agreement that both public and private transport infrastructure in urban areas is used in an essentially highly inefficient way. Decentralisation, tending to evolve in several stages, sets in when people begin to leave the centre of the town, moving to the outskirts.