An important property of the line hierarchy is the consistency of the various data. Line route, time profile and vehicle journey section must match at any point of time. A run time between two stop points, which are not touched by the used line route, are never allowed to be specified in the time profile. Visum assures that this consistency is always maintained. If you make changes to the objects of the line route, the objects based on these may be adjusted, to reestablish a consistent state applicable to the new situation.
