本文对影响郑西高铁运输安全的污染源、危树、鸟害、轻飘垃圾、跨越三线等外部环境因素进行了详细分析,阐述了其对高铁的危害,并提出了改进措施。通过采取这些措施后,取得了显著效果。 This paper analyzes in detail the external environmental factors such as pollution sources, endangered trees, birds, trash, and the third line that affect the transport safety of the high-speed railways in western Zhengzhou. It also expounds its harmfulness to high-speed railways and presents some improvements. By taking these measures, has achieved remarkable results.