31 years ago today, on October 20, 1994 (September 16, 1994 lunar calendar), the Guangzhou-Shenzhen quasi-high-speed railway was successfully tested. On October 20, 1994, the 147-kilometer Guangzhou-Shenzhen quasi-high-speed railway successfully completed the first phase of the one-month driving test. The maximum speed of the train reached 174 kilometers per hour, exceeding the design speed by 14 kilometers per hour. After the railway opens at the end of the year, the driving time will be shortened from more than two hours to one hour.