This location is based on casualty postcode data included in the vehicle records for each crash in STATS19 returns. MAST assumes that the casualty resided in the local authority area which contains the postcode centre point. In cases where a full valid postcode has not been included in a STATS19 return, the place of residence will be listed as unknown.
The Casualty Home Small Area dimension operates on a similar principle, but categorises results by the Small Area in which the casualty resides. However, this dimension cannot be used in MAST indexed reports.