I have already bought a ticket and received a text message reminding me that the railway schedule has been adjusted and tickets are no longer on sale. Can I still take this train?

I guess I can’t sit down, so I’ll refund my ticket.

Railway transportation is a land transportation method in which locomotives pull train vehicles on two parallel rails. The traditional method is steel wheel travel, but railway transportation in a broad sense also includes non-steel wheel travel methods such as maglev trains, cable cars, and ropeways, or rail transportation.

Railway can provide an extremely smooth and hard medium for train wheels to roll on with minimal friction, making people on it more comfortable, and it can also save energy. If properly configured, rail transportation can save 50% to 70% of energy compared to road transportation when carrying the same weight. Moreover, the rails can evenly distribute the weight of the train, greatly improving the load-carrying capacity of the train.

Railway sometimes refers to a certain railway "line" such as the Beijing-Guangzhou Railway, and sometimes refers to a collection of railway lines including old lines, new lines, or first and second lines. For example, whether a new railway line is built under the name of expansion or reconstruction, it still belongs to a certain railway system. .

The railway grades in the high-speed rail era are very complex, with classifications from different angles such as road network grade, speed grade, passenger and freight grade, etc. The high-speed railway level is higher than the national railway level I. Some of the national railway level I are express railways and some are ordinary railways.