The problem of the correction of the disorganized train traffic schedule is analyzed (aiming to minimize general costs related to the expenditure of energy and time wasted by people and equipment). Disorganized a train traffic is named an event when you should insert one more train route in the already created train traffic schedule. This problem can be solved applying the algorithms for the search of the shortest chain The fuzzy algorithm for the determination of the shortest chain, the key operators and their specific features are also analyzed.

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