Why the train auxes would rather 9 hours stop when getting on for destination, next is behind schedu

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The train is taken to go out previously when travel, always can encounter the train to be able to decelerate speed to jockey even the circumstance of cost time, can shift to an earlier date to stand obviously occasionally, occasionally already behind schedule however even berth, although be taken now,tall iron also can have similar case now and then. Generally speaking, the train has fixed orbit and circuit plan, suffer weather, viatic the impact is very little, unless train appears breakdown, otherwise the speed travel according to the regulation, should not appear to jockey for long await or the circumstance of behind schedule, why can that have afore-mentioned circumstances to appear?

(the picture originates network)

On train diagram, can have fixed run time and hand in meeting, avoid allow a site. But, common train operation is impossible image height iron is punctual in that way, encounter any sudden situations on the way, for instance Xue Tian of slow, rain enrages car of passenger much fluctuation etc, metropolis appreciably stays time, even if only a few minutes, influence of possible also meeting moves to other train. If cannot drive this time inside short time,come back, be about to give way of train of other on schedul. Of course, if the train leaves quickly, arriving early also is unallowed likewise, unless be terminus, because platform and partial route are common, arrive early to also can affect other train to move, so the train must need to decelerate speed or berth.

(the picture originates network)

So, the main reason of general train berth is:

No matter the train is breakfast or behind schedule, because not be,the station is reached in formulary time, the station may appear the platform is occupied full or the case that the station did not make the preparation that receive a car good, so train is met the directive according to dispatcher, slow down speed perhaps jockeys, below the circumstance that awaits a station to satisfy a requirement, sail again station.

Train orbit amount is finite, if be the same as for a short while to sail the train that come, among them one needs berth to avoid let, if be to be the same as the train to travel, when the car before according to the car after service chart need is surmounted, the car also needs berth to avoid before let. Encounter these situations, average freight car gives way to the passenger car, accommodation train gives way to express, behind schedule car wants to give way to car following a drop.

(the picture originates network)

So, take common train, especially accommodation train perhaps increases number, encounter jockey avoid the circumstance that let or restrains time is very common, and run time arrives accurately the Gao Tie of minute of second, appear rarely however this kind of circumstance.

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