Measuring multi-activities accessibility and equity with accessibility-oriented development strategies

Abstract

Accessibility-oriented development (AOD) strategies are the extension of transit-oriented development (TOD) strategies but focus more on access to destinations. Adopting AOD strategies can help identify and improve the defects of imperfect TOD construction. Based on AOD strategies, this paper evaluated the comprehensive accessibility to multiple public facilities with the Gaussian-based two-step floating catchment area method (G2SFCA) in the heart area of Chengdu City and further analyzed its equity issues. The comprehensive accessibility analysis proved the efficiency of AOD-based analysis in public resources shortage area determination and TOD level evaluation. The equity analysis indicated that the improvement of equity could not reflect the progress on total accessibility but only rationalize the allocation structure of public resources. Based on the case study, several suggestions for policy-making are given, including the construction of the non-motorized transportation system, adjustment of supply allocation, and comprehensive consideration of equity and accessibility in urban planning.