An analysis of the main factors influencing the proportions of male and female workers who travel to from each borough in the area. For males the most important variable is the social class composition of the borough ; for females journey time and accessibility of local employment are more important.

employment in London reached a peak in 1962 or 1963, and then fell consistently for 20 years, but seems to have been rising again since 1982 or 1983. employment is now mainly professional and administrative. Rail transport is the only effective way to move the large numbers involved.

The authors assess the influence on the modal choice of commuters of a number of variables; the strongest are the age, density and size of the urban area. The monocentric model is modified by the development of sub-centres. Time is regarded as more important than distance.