美国铁路网的形成、分布和改造

Formation, Distribution and Reconstruction of Railway Networks in U.S.A.

本文分析了美国铁路网迅速形成和急剧缩减的原因，指出其非均衡分布的特点，介绍其远景改造设想，对我国铁路网的建设有一定的参考价值。

The causes of rapid growth and sharp reduction of rail way network in U. S. A. and the features of its nubalanced distribution are mainly analysed in the paper. The future transformation blueprint is also intriduced. As a reference its experience world be useful for constructing the railway network in China.