The method involves determining a section, particularly intersection points, of a partial area boundary of a partial area with another partial area boundary of another partial area. Another section of the partial area boundary is limited from the former section, particularly from the intersection points, where determining whether the respective subrange delimitation sections lies outside or within another partial area or not. Independent claims are also included for the following: (1) a device for determining corridor boundary; and (2) a computer program with a computer program code for the execution of a corridor boundary determining method.
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