Xinguanyin Tunnel (Chinese: 新觀音隧道) is located in Taiwan Railways Administration North-link Line, Nan'ao, Yilan County territory.

As the tunnel is very long, the construction unit in order to save construction time, in addition to excavation on both sides of the north and south, and in the middle of the North vertical pit and South Hang Hang, so all a total of 6 working surface to enhance the construction efficiency.

The track in the tunnel adopts the ballast layout track, which allows the train to pass at a speed of 130 km / h at high speed.

After completion, it will greatly enhance the driving efficiency of the north route.

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