“…Natural factors are mainly topographic conditions, such as elevation and slope [21,24,28,[33][34][35], that restrict urban land development. Socioeconomic factors include population [21,[34][35][36][37][38], GDP [34,[36][37][38][39], urbanization rate [40,41], fixed-asset investment [34,38,42], foreign direct investment [36,43], and urban wages or disposable income [33,34,36,39,42]. Infrastructure factors are mainly traffic conditions [38,42].…”