恰逢时代少年团演唱会，上海市流入人数创暑运高峰

Group 1 - The number of people entering Shanghai increased by 12% during the three days of August 18, 19, and 20 compared to the previous week [1] - The influx of people to Shanghai in the past week rose by 9.0% compared to the same period in July, marking a peak since the summer travel season began [1] - The "时代少年团" concert is a significant event contributing to the increased number of visitors, with performances scheduled for August 20, 21, 23, and 24 [1] Group 2 - Among the modes of transportation used to enter Shanghai, cars account for 61.1%, airplanes for 14.3%, and trains for 24.6% [2]