Table 1 Approaches for conceptualizing and measuring the potential spatial access to services and facilities for residential areas.
Conceptualization | Accessibility measures |
|---|---|
Immediate proximity or minimum travel time or distance | The distance between a location and the closest facility |
Availability provided by the immediate surroundings or cumulative opportunity | The number of facilities within a given distance from a point of origin |
Average cost to reach all destinations | The average distance between a location and all facilities |
Average cost to reach diversity | The average distance between a location and n facilities |
Accessibility according to proximity and availability | Gravity models, two-step floating catchment area (2SFCA) methods |