trains running through three or more railway bureaus, 2001–3998 for the trains running through two railway bureaus, and 4001–5998 for the trains that run in only one railway bureau. General Train The general train (, which can be shortened to , ) has as many stops as possible, and is often the preferred choice for rural workers to visit their home villages because of low ticket price. This is the slowest type of train and has the lowest priority in the Fixed Train Timetable (). The top speed is 100 km/h. These trains are often the only available transportation in rural area lacking highway infrastructures, but is gradually being phased out in favour of faster trains. Route identifiers for general trains are always 4 digits—a numeric prefix from 6-7 followed by a 3-digit route number. 6001–6198 are used for the trains that run in more than one railway bureau, while 7001–7598 will be used for the trains that run in only one railway bureau. Commuter Train The commuter train is usually runs for railway staff to commute or consult their doctor, but also takes their children to school and brings them back in some areas. Generally tickets for such a kind of train are not available for passengers. Route identifiers for commuter trains are 4 digits with a range of 7601–8998. Temporary Train The "L" trains are temporary — they are not listed in the official train schedule, but are added when necessary. Many of these trains only operate at peak passenger travel season such as during the spring festival travel season. In addition, many new train services are originally added as L-series before train schedules are readjusted and later become regular services. L1–L6998 are used for the temporary trains that run in more than one railway bureau, while L7001–L9998 will be used for the trains that run in only one railway bureau. Recently the type was merged into other types for more kinds of temporary services (e.g. Temporary Limited Express). Y ("Linshilüyou", 临时旅游; Temporary Tourist Train) This series is used for trains that specifically run for tourism. Only very few trains begin with Y. Besides, travel agencies can apply to the Railways Department for organizing additional passenger trains for the tours. S ("Shijiao", 市郊; Suburban Commuter Rail) This is a newer class developed to utilize idle tracks (mostly industrial or former industrial) to provide commuter travel to larger city