How to achieve isobenefit urbanism in the central urban area of mega cities？Taking Beijing as a Case Study | The core area of the capital

Abstract The rapid development and scale expansion of cities are the core characteristics of the urbanization process, which effectively promote the formation of agglomeration economies, infrastructure sharing, and social mobility improvement. However, it also brings various negative effects such as unequal public services, traffic congestion, and environmental pollution. The principle of isobenefit urbanism proposes that walking accessibility of various service facilities is an important indicator for measuring whether a city is livable, fair, and sustainable. This study specifically examines the impact of environmental factors on the implementation of isobenefit urbanism in the central urban area of Beijing, a mega city. By obtaining open source data and ArcGIS analysis, this study identified the Strava walking heat score and spatial form indicator features of 183 blocks, respectively. Then, Pearson correlation analysis and multiple linear model analysis were used to screen out 8 spatial shape indicators that affect walking heat scores. Based on this, this study takes Beijing as an example to explore the guiding significance of isobenefit urbanism for the sustainable development of the central urban area of mega cities. At the same time, a multidimensional indicator framework is constructed to evaluate the impact of the built environment on pedestrian travel behavior, and planning update suggestions are proposed based on the policy background of Beijing and the development strategy of the capital's functional core area.