OCR GCSE Geography B · J384
Specification 9.1 · Paper 1, Paper 2, Paper 3
Revise: Thematic Maps and Map ConstructionA sphere of influence map shows the surrounding area affected or served by a place in a particular context. A large out-of-town shopping centre may draw customers from a wider area than a village shop. The context must be stated: a shopping catchment and a travel-time area are not necessarily the same thing.