the petrochemical Fujia Factory in Jinzhou District was breached due to a typhoon. Authorities have ordered the plant to be shut down. Around 12,000 residents protested as the factory, which originally was intended to be based in Xiamen, did not receive official approval to operate in Dalian. Municipal authorities ruled that the facility must move, leaving taxpayers to pay the expensive cost of relocation. Concerns have been raised over mounting traffic due to "bad urban design" and that the growing rate of car ownership is affecting air quality. The United States National Academy of Engineering have raised concern about rising traffic in Dalian stating that "rapid growth of traffic in Dalian and in similar Chinese cities will repeat the air quality and energy consumption mistakes of Los Angeles and other U.S. cities, if not better managed." Transportation Local transportation Cycling is not as popular in Dalian as in other Chinese cities because of the hilly roads. Dalian is also one of the many cities in China where there are few motorcycles in the downtown core, where motorcycle riding is prohibited by the local law. The city has a comprehensive bus system and an efficient metro system. As of November 2015, the Dalian Metro consists of the underground Line 1, Line 2, and the overground Line 12 (Formerly called line R2) and Line 3. New lines and expansion of the metro system are under way. The Dalian Tram system is the second oldest in China. Most of the public transportation in the city can be accessed using the Mingzhu IC Card (). Domestic and international In 2005 Dalian expanded the international airport, Dalian Zhoushuizi International Airport, with direct flights to the most major cities in China, and to cities in South Korea and Japan as well as countries in Southeast Asia. In 2014, the airport was the 20th busiest airport in China with 13,551,223 passengers. The airport is the hub of Dalian Airlines. The city's location means that train trips to most Chinese cities outside China's northeastern region require changing trains in Beijing or Shanghai. With the high-speed rail system, trips from Dalian to Shenyang can be completed in 1.5 hours, to Changchun 2.5 hours and to Harbin 3.5 hours. The city has two railway stations, namely Dalian railway station and Dalian North railway station , the latter being part of the Harbin–Dalian high-speed railway. In addition to local and express