伴随天津经济的高速发展,在城市建设日新月异的同时,城市人口不断增多,城市交通行业的低效率日益显现。交通拥堵,环境污染现象成为天津经济发展过程中的瓶颈,加紧天津市的轨道交通建设已成为当务之急。津 Along with the rapid economic development in Tianjin, while the urban construction is changing with each passing day, the urban population is constantly increasing, and the inefficiencies of the urban transportation industry are increasingly apparent. Traffic congestion and environmental pollution have become the bottlenecks in the economic development of Tianjin. To speed up the construction of rail transit in Tianjin has become a top priority. Tianjin