Core Insights - The peak return passenger flow for the Spring Festival holiday is expected on February 23, with an estimated 18.5 million passengers to be sent by the national railway [3] - The railway has maintained a steady flow of over 15 million passengers for three consecutive days, with 18.3 million passengers sent on February 22 [3] - A total of 339 million train tickets have been sold during the Spring Festival travel period as of 8 AM on February 23 [3] Group 1 - The railway departments across the country are implementing various measures to handle the peak return passenger flow, including increasing transport capacity and ensuring passenger safety [4] - Specific actions include dynamic increases in security checks and ticket verification channels at major stations to reduce waiting times for passengers [4] - AI assistants are being introduced at stations, such as "Hang Xiaodong" in Hangzhou East, to provide travel solutions for passengers [4] Group 2 - The national railway plans to add 2,297 passenger trains to accommodate the high demand on February 23 [3] - Major departure cities include Guangzhou, Beijing, and Chengdu, while popular arrival cities include Beijing, Shanghai, and Guangzhou [3] - Concentrated passenger flow is noted on specific routes, such as Nanning to Guangzhou and Beijing to Shanghai [3]