To make full use of the expressway tunnel monitoring system, they want to combine these systems.

为充分发挥隧道监控系统的功能，重庆欲建立高速公路隧道区域联网监控系统。

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The operation of expressway tunnel is an important measure to protect the traffic safety in expressway.

高速公路隧道运营是保障高速公路行车安全的重要举措。

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Datong-Yuncheng Expressway Yanmenguan Tunnel, Shanxi Province, It is the first expressway tunnel constructed in China.

山西大（同）运（城）高速公路雁门关隧道，是我国最早开工建设的高速公路隧道。

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An inbound lane on the Gowanus Expressway from Sixth Avenue to the tunnel was installed in 1996, said Adam Levine, a state Department of Transportation spokesman.

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In the U.S., its holdings include the Detroit-Windsor Tunnel, the Indiana Toll Road and the South Bay Expressway.

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