Source: data from R. Tolley and B. Turton (1995) Transport Systems, Policy and Planning, New York: Longman, p. 184.
Performance of Urban Transport Modes
Modal choice is linked with the territorial usage of transportation and consequently with its spatial imprint. The above graph portrays spatial, speed and performance characteristics of major urban transportation modes. Performance is simply the ratio of speed over space consumption. Public transit consumes on average 10 times less space than individual transportation. Thus, in car dependent cities a much larger amount of space must be allocated to transportation than in transit oriented cities. For instance, 70% of the land use of Los Angeles is attributed to the car, making it one of the most car oriented city in the world. When building a new facility such as a skyscraper, at least one parking space per employee must be allocated.