1, Chongqing cannot build a subway because of its rugged terrain, which is too expensive and unsafe, but it has built a light rail.

2. You can search for Chongqing local treasures in Baidu.

3. After searching, click the first one.

4. After entering, you can check the route and time of Chongqing subway, as well as public transportation.

5. You can pay attention to the official WeChat account and search for local treasures in Chongqing.