Calculate spatial accessibility using weighted surfaces

General-purpose function to calculate spatial accessibility by combining demand-side and supply-side weighted distributions. Supports multiple supply measures and flexible weight specifications.

Usage

compute_access(
  demand,
  supply,
  demand_weights,
  access_weights,
  id_col = NULL,
  supply_cols = NULL,
  indicator_names = NULL,
  snap = FALSE
)

Arguments

demand

SpatRaster representing spatial distribution of demand

supply

vector, matrix, or data.frame containing supply capacity values. If using an sf object, please use st_drop_geometry() first.

demand_weights

Multi-layer SpatRaster of demand-side weights

access_weights

Multi-layer SpatRaster of accessibility-side weights

id_col

Character; column name for facility IDs if supply is a data.frame

supply_cols

Character vector; names of supply columns if supply is a data.frame

indicator_names

Character vector; custom names for output accessibility layers

snap

Logical; if TRUE enable fast computation mode (default = FALSE)

Value

SpatRaster of accessibility scores