Residential concentration

A residential concentration is an area where many residential units are situated on a relatively small surface.

Description
There are no absolute measures to determine whether an area should be regarded as a residential concentration, only relative:
 * is the number of residences per square kilometre significantly higher than in the wide environment?
 * is the number of residences in this district significantly higher than in neighbouring districts?

Use
A residential concentration is used as an indicator for the probability of residential burglary as a wide choice or concentration of dwellings allows a burglar to select a target by opportunity