这些安全措施包括将客运流量与货运流量隔离，升级列车控制系统等。
These tiers could categorize methods of operation in conjunction with safety improvements such as separation of passenger and freight traffic and advanced train control systems.
中国或许是全球最大的汽车市场，但发生在京藏高速公路上，绵延上百公里、持续一周多的交通拥堵并不是客运流量增多引起的，真正的祸首是从内陆省份往沿海港口运煤的重型货车。
China may be the world's largest car market but the 100km traffic snarl-up that has blocked the beijing-tibet expressway for more than a week was not caused by a build-up of passenger traffic .
我们将降低将职员和顾客运输到这些场所的交通流量。
We reduce the traffic required to transport staff and customers to these locations.
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