According to the query of Baidu map, Chenghu service area is located in S5 (Changjia Expressway), Kunshan City, Suzhou City, Jiangsu Province. Chenghu service area is located in G1521 Changjia Expressway Chenghu South, the service area in December 31, 2016 officially opened for operation. Yangcheng Lake service area is located in Suzhou Industrial Park, Suzhou City, Beijing-Shanghai Expressway, is a highway service station under the jurisdiction of Jiangsu Ninghu Expressway Company Limited, and is also an important node on the overlapping section of Beijing-Shanghai Expressway (National Expressway G2) and Shanghai-Chengdu Expressway (National Expressway G42), and is the largest size of the domestic One of the service areas, on July 18, 2019, Yangcheng Lake Service Area was officially put into operation.