Contour catchments measure the combined effect of public transport speed and land use intensity. This index determines the number of residents and jobs within the walkable catchment areas of activity nodes that can be reached within a kerb-to-kerb public transport travel time of up to 30 minutes from the reference node. This indicator is expressed as a percentage of the total number of metropolitan residents and jobs and is shown as an average for each node. Higher values indicate greater accessibility.
30-minute contour catchment
where:
Qi(30)= 30-minute contour catchment of node i
tij = Minimum travel time between nodes i and j
actj = Number of residents and jobs in the catchment area of node j
actm = Number of residents and jobs in the metropolitan area
30-minute contour catchment
where:
Qi(30)= 30-minute contour catchment of node i
tij = Minimum travel time between nodes i and j
actj = Number of residents and jobs in the catchment area of node j
actm = Number of residents and jobs in the metropolitan area
