It connects the Hongqiao International Airport with the downtown core of Shanghai, and also the dense residential districts of Yangpu and Hongkou.

During the same period, CASCO has successfully put into service its Urbalis 888 signalling solution on six of these metro lines in Chengdu and Shanghai.

On April 20, 2007, a crane on the Songyuan Road construction site collapsed into a five-story building causing some external damage.

On May 18, 2009, a fire broke out on the construction site of Tongji University, covering an area of 100 square meters (1,100 sq ft) and burning down more than ten workers’ dormitories.

[18] On January 6, 2010, a crane at Songyuan Road suddenly lost control during operation, causing a 5 meters (16 ft 5 in)-long boom to crash on the roofs of two construction vehicles.