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 core viewpoint of the article highlights a significant increase in the number of people flowing into Shanghai, attributed to the "时代少年团" concert, with a 9.0% rise compared to the same period in July, marking a peak since the summer travel season began [1] - Data from the flight management platform indicates that during the days leading up to the concert (August 18, 19, and 20), the number of people entering Shanghai increased by 12% compared to the previous week [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]