Highway and Tunnels
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The highway bridge and tunnel is a multi-lane highway for vehicles to drive in different directions and lanes, and to control the access of all vehicles. All sections of the highway cross other traffic lines in the form of a three-dimensional intersection, and connect with other important highway lines in the appropriate location. When the line passes through a big city, it is mostly to bypass the city, or pass by viaduct or tunnel if it must go straight through the city. At the same time, the highway is equipped with the following supporting facilities: safety facilities, service facilities, management facilities and greening facilities.