There seems to be many similarities between cities in China. Thus I would recommend trying to visit the following when visiting a Chinese city:
Tower: Find the sightseeing tower, which many cities have, or find the tallest building in town and try to get a “bird’s eye view” of the city.
Walking Street: Many cities also have a street that is closed to cars and consist of shops, food vendors and PEOPLE! Depending on the time of day, it is a great place to see people.
Residential Area: Find the district with the highest density of people and/or highest population. Find where everyone lives.
Universities: The universities can be an open door for outreach. See how close they are together and consider them.
What are some other similarities of Chinese cities that might be good to visit on a survey trip?