The turnouts with rail type are divided into: 8 kg/m, 12 kg/m, 15 kg/m, 18 kg/m, 22 kg/m, 24 kg/m, 30 kg/m, 38 kg/m, 43 kg/m, 50 kg/m, 60 kg/m. the turnouts with rail type are divided into: No. 2, No. 3, No. 4, No. 5, No. 6, No. 7, No. 8, No. 9, No. 12, etc. It can be divided into single switch, symmetrical switch, triple switch, compound switch, cross-crossing switch, cross-crossing combination switch and so on.A turnout is a vital piece of line-connecting equipment that allows locomotives and vehicles to switch from one track to another seamlessly. These turnouts are predominantly laid in significant numbers at stations and marshalling yards, amplifying the efficiency and capacity of the rail system. With the strategic placement of turnouts, even a single track can fully utilize its potential. By incorporating a turnout with a fork longer than the train itself, it becomes possible to smoothly switch trains, enhancing the overall functionality and flexibility of the railway network.