Abstract: The embodiments relate to a method for monitoring a traffic route for a means of transport of a predetermined kind, particularly for an aircraft on a lane at an airport. The method involves noise signals that occur in a section of the traffic route (2) being recorded with a sound pickup (6, . . . , 13) and evaluated such that a piece of localization information is ascertained which indicates whether a means of transport (1) of the predetermined kind is in the section of the traffic route (2). If the piece of localization information reveals that a means of transport (1) of the predetermined kind is in the section, the admissibility of the means of transport (1) to be in the section is checked on the basis of one or more prescribed criteria, whereupon an appropriate checking result is output. The method according to the embodiments is distinguished in that the evaluation of noise signals can be used to achieve reliable localization of means of transport independently of weather conditions.