Group 1 - The core point of the news is the adjustment of the national railway operation schedule, which includes the introduction of the G4 high-speed train from Kunshan South Station to Beijing South Station, significantly reducing travel time [1] - The G4 train is a benchmark service with a total of 16 carriages and a maximum speed of 350 km/h, making it the fastest on the Beijing-Shanghai line [1] - The introduction of the G4 train is supported by the Kunshan municipal government and aims to enhance direct connectivity to major hubs, addressing the previous reliance on passing trains [1] Group 2 - The summer transportation period has begun, with Kunshan South Station expected to handle approximately 1.7332 million departing passengers and 1.76 million arriving passengers during this period [2] - The passenger flow is anticipated to be driven by regular commuting, family visits, and business travel, with a notable increase in student and child travel [2] - Kunshan's transportation department has implemented proactive measures for passenger service, including emergency response mechanisms and volunteer support for travelers [2]