点到为止丨让退票更省心，让车厢更安静

Group 1 - The core point of the article is the introduction of a time-limited free refund service for mistakenly purchased train tickets by the railway 12306, effective from January 19, allowing passengers to self-process refunds within 30 minutes of payment and at least 4 hours before departure without incurring a fee [1] - This new refund policy aims to enhance the passenger experience by providing a quick "change of mind" option for those who accidentally purchase tickets for the wrong date or train [1] - The initiative reflects the railway's commitment to improving service for the public and reducing unnecessary economic losses for travelers [1] Group 2 - Starting from February 1, the "silent carriage" service will be expanded, with over 8,000 trains nationwide offering this service [4] - The "silent carriage" will feature standardized silence signs and service prompt cards, along with disposable earplugs, promoting a quieter travel environment for passengers who need to rest, read, or work [4] - The expansion of the "silent carriage" service responds to the demands of more travelers and emphasizes the importance of maintaining civility within train carriages [4]