Trap of weights: The reuse of weights in the floating catchment area (FCA) methods to measuring accessibility.

ABSTRACT: Background: Geographic weights are vital in the floating catchment area (FCA) method of accessibility measurements due to their simulation of spatial barriers in various ways. When modelling population demand, geographical weights with different distance decay coefficients can reflect diverse distance tolerances in facility utilization and could lead to erratic accessibility results. Quantifying accessibility as the sum of weighted supply-demand ratios can alleviate the distance decay coefficient's influence and generate stable geographic patterns. However, the effects of weighted ratios on different FCA models and resources have not been investigated. Methods: To identify impacts of weighted ratios on various FCA variants, this study contrasted the accessibility calculated f

SUBMITTER: Zhang L 

PROVIDER: S-EPMC10130702 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature