高速铁路与汽车和航空的竞争格局分析
孙枫, 汪德根, 牛玉

Competition patterns of high-speed rail versushighways and aviation
Feng SUN, Degen WANG, Yu NIU
图5 300~500 km典型航线客运指标年际变化
Fig. 5 Interannual variability of passenger indexes of typical air routes at a distance of 300-500 km