The construction of rail transit
In the construction process of rail transit require to lay
trains running on exclusive tracle. And urban rail generally
have been built under the ground by affecting the shortage
of land resources in China. The difficulty of underground
construction is much higher than elevated and light rail
construction difficulty and intensity. So the entire process of
building energy consumption cannot be ignored. By the
comparison with the actual, energy consumption in rail
transit construction is about higher 70% than the
bus-building energy consumption.