In this paper we consider the analytical and geometric properties of route catchments in urban areas in which the transport network consists of a combination of radial routes converging on the city centre and one or more major orbital routes around the city. After defining the basic concepts, we...

We examine some spatial properties of cities and obtain new results about how travel patterns are influenced by strategic routes such as radials and orbitals. Following a general introduction in which the basic approach is described, we develop a number of key principles, which build on our...