An urban traffic tunnel safety evaluation system must be set up in order to make a synthetical evaluation of the running safety and improve the running safety quality of the traffic tunnel.

为确保城市交通隧道的运营安全，需要建立城市交通隧道安全系统评价体系，对城市交通隧道的运营安全性能进行综合评价，提高城市交通隧道的运营安全品质。

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The traffic to the city had been held up for nearly one week by a big tunnel fire.

一场隧道大火使进城的交通中断了近一个星期。

youdao

You can route network traffic between that VLAN and your own corporate network by establishing a VPN tunnel between your network and an IBM Cloud data center.

可以在您的网络和一个 IBM Cloud 数据中心之间建立一个 VPN 隧道，在 VLAN 和您自己的公司网络之间路由网络流量。

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He said that the first quarter of 2008 would confirm the company's progress, thanks to a boost in road traffic through the tunnel and "outstanding" growth from the Eurostar passenger rail service.

FORBES: Eurotunnel Worth The Fare

Highways Agency spokesman said road alignments to allow traffic to enter the northbound tunnel could not be done until the southbound was open.

BBC: Hindhead Tunnel

Our correspondent says there will be serious question about how a major tunnel on one of Japan's most important traffic arteries could have failed so catastrophically, with the private company that runs the highway saying the tunnel had undergone a major inspection just two months ago and had been given a clean bill of health.

BBC: Japan Sasago tunnel: Collapse traps cars