4.1.2 Characteristics of the aerodrome layout

The aerodrome layout is a factor for consideration when implementing remote aerodrome ATS (as is the case when building/upgrading a conventional tower). The aerodrome layout will drive the requirements for the visual presentation and the binocular functionality and will affect the set-up of the camera installations, e.g. whether a single-camera tower (possibly complemented with visual ‘hot spot/gap filler’ cameras) or a distributed camera installation should be implemented (See Section 5.2 for further elaboration related to this topic). Also, larger multiple runway aerodromes may negate the need for more than one conventional tower as the aerodrome expands (by introducing cameras and their (visual) presentation into the conventional tower). For each implementation, the safety assessment should consider the characteristics of the aerodrome layout when establishing the necessary functionalities of the system. The validation exercises conducted in the framework of the SESAR JU programme ([26], [29], [30], [36], [37], [38]) have so far mainly been conducted for aerodromes comprising non-complex layouts (mainly one runway, one to three runway entrances per runway, one to four aprons), but also for aerodromes comprising more complex aerodrome layouts (e.g. two runways and complex taxiway layout).