The subdivision of towns and cities into certain units where road traffic is restricted and pedestrians predominate. Beckmann (2001) Env. & Plan. D 19 comments that ‘the automobile turns into a structural prerequisite for the organization of everyday life, while at the same time the variety of forms of everyday action becomes the structural prerequisite for the expansion of the automobile.’ See Bickerstaff and Walker (2005) Urb. Studs 42, 5 on local transport planning.