With the purpose of analyzing the spatial distribution and fairness of public service facilities in Beijing, Gauss two-step floating catchment area method is applied to assess the accessibility within the Fifth Ring Road of Beijing in 5 dimensions, including education, healthcare, commerce, transportation, and culture leisure service, and the weighted composite accessibility is calculated. Then, hedonic price model is adopted to further analyze the impact of public service facilities accessibility on housing prices. It is found that the accessibility of public service facilities is unevenly distributed, and most resources are concentrated on certain district. The accessibility of education and healthcare service is significantly higher in the central urban area than that in other regions, and commerce accessibility in the eastern area is higher than that in the western. Transportation and culture leisure resources are relatively scattered. There is a significant positive impact of healthcare and transportation accessibility on housing price, a significant negative impact of commerce accessibility and no significant effect of education and culture leisure accessibility on housing price. The comprehensive accessibility is also proved to have a significant positive impact on housing price. These results provide support for urban planning, especially for the rational distribution of public service facilities.

为研究北京市公共服务设施的空间分布规律及公平程度, 基于高斯两步移动搜索法测算北京市五环内各街道教育、医疗、商业、交通和文化休闲5个维度公共服务设施的可达性, 加权得到综合可达性指数。基于特征价格模型, 分析公共服务设施可达性对住房价格的影响。结果表明, 北京市五环内公共服务设施可达性的空间差异较大, 资源高度集中在部分区域; 医疗和教育可达性中心城区明显高于其他地区, 商业可达性东部明显高于西部, 交通和文化休闲资源较为分散, 没有明显的可达性高值聚集区域; 对于住房价格, 医疗和交通可达性有显著的正面影响, 商业可达性有显著的负面影响, 教育和文化休闲可达性的影响不显著, 综合可达性的影响显著为正。研究结果可为公共服务设施的合理布局提供帮助, 为城市规划提供参考依据。