多中心城市建成环境对居民出行碳排放的作用机理研究——以广州为例

Many city take polycentrie spatial strategy to address urban transportation problems caused by monocentricity both in China and abroad. However, few studies have analyzed if polycentrie spatial can reduce household travel carbon emissions or not. This study choose Guangzhou which was typically polycentric city as case study. We chooses communities of city center, sub-center, and satellite town of Guangzhou to collect built environment and household daily travel information. Base on the large sample survey data, the distinguishing feature of household travel behavior and its carbon emissions of polycentric cities are studied. Then, we further build the structural equation model to quantitative test the impact path and extent of built environment. All research above was aim to reveal the impact mechanism of built environment on household travel carbon emissions, and identify it’s carbon redauction potential of polycentric cities；It will contribute to control resident daily travel carbon emissions and provide scientific bases for low carbon development.

国内外众多城市采取多中心的空间战略来缓解单中心蔓延带来的城市问题，但多中心的城市空间结构是否有助于缓解城市交通压力还存在巨大争议，而是否有助于减少居民出行能耗和碳排放更是缺乏系统严谨的实证研究。本研究拟以我国典型多中心城市广州为案例，选取城市中心、副中心、卫星城等典型区域开展大样本的居民出行和建成环境调查，并进一步分析多中心城市居民出行和碳排放特征。在此基础上，构建结构方程模型，定量分析多中心城市建成环境对居民出行碳排放的作用路径和效果。通过以上研究，揭示多中心城市建成环境对居民出行碳排放的作用机理，明确多中心城市的空间组织和居住区规划设计优化对居民出行减排的作用，以期为城市的低碳发展提供科学依据。

本研究依据项目申报书，以我国典型多中心城市广州为案例，选取城市中心、副中心、卫星城等典型区域开展大样本的居民出行和建成环境调查，并进一步分析多中心城市居民出行和碳排放特征。在此基础上，构建结构方程模型，定量分析多中心城市建成环境对居民出行能耗和碳排放的作用路径和弹性。通过以上研究，揭示了多中心城市建成环境对居民出行能耗和碳排放的作用机理，明确多中心城市的空间组织和居住区规划设计优化对居民出行减排的作用，以期为城市的低碳发展提供科学依据。