Kunshan is situated between Shanghai and Suzhou in the southeast of Jiangsu Province. To its north and northeast, it is bordered by Changshu and Taicang; to its south and southeast, it is bordered by two districts of Shanghai, Jiading and Qingpu; to its west, it is bordered by Wujiang and Suzhou. The city has five expressways running through it, including the Shanghai-Nanjing Expressway. By car, it is only 40 minutes away from the Shanghai Hongqiao International Airport. In addition to the Beijing-Shanghai High-speed Railway, the Shanghai-Nanjing High-speed Railway also runs through the city, with three stations: South Kunshan, Yangcheng Lake and Huaqiao. Connection with Shanghai is strengthened by the extension of Line 11 of the Shanghai metro system to the Huaqiao International Service Business Park, which also has three stops in Kunshan.