The City Districts Torbiörn Carlquist 3/12/2002

Background Sub-City Urban WP Nov 2001 Size thresholds Target: on average 20 000 inhabitants Between 5 000 - 40 000 inhabitants

Background II Very reduced variable list Purpose: Measure disparities within cities Sub-cities from Urban Audit pilot phase not re-used

Proposals from MS Several MS have made proposals Very few are satisfactory It takes a long time to settle the list of sub-cities Medium-sized cities are often left out

Building block I City districts with political function often too large Statistical sectors / enumeration districts often very small units

Building block II Aggregation of small units to homogenous districts of right size Possible to have 2 levels of city districts Good examples: Wien (Vienna) in Austria; Method of France

Comparability No absolute comparability Size requirements important

Problems Data availability a restrictive factor Census data often only source Political units are often too large Problem of timing Census data not ready Takes long time to define sub-cities