Rail traffic systems are widely acknowledged to be an alternative green transportation for goods and people due to their higher mobility, energy efficiency (EE), and/or substantially lower environmental impact than conventional transportation systems. Railway communications have attracted significant attention due to its potential for not only improving operational mobility, safety, and reliability but also improving quality-of-service, eco-friendliness, comfort, and cost efficiency.

中文翻译：

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扫描问题

铁路交通系统由于具有更高的机动性，能效（EE）和/或比传统交通系统低得多的环境影响，因此被认为是货物和人员的替代绿色交通方式。铁路通信不仅具有改善运营的机动性，安全性和可靠性，而且还具有改善服务质量，生态友好性，舒适性和成本效益的潜力，因此备受关注。