北京市等时间交通圈的范围、形态与结构特征

陈卓, 金凤君

Scope, shape, and structural characteristics of traffic circles of equal travel time in Beijing

Zhuo CHEN, Fengjun JIN

图5 地铁对北京1小时交通圈的支撑

Fig.5 Support of subway for the one hour traffic circle of Beijing