3.3 Multiple mode of operation

The multiple mode of operation refers to the provision of ATS to more than one aerodrome at a time, i.e. simultaneous service provision, from a single RTM. Operational applications include, but are not limited to: the provision of ATS to more than one aerodrome simultaneously from one RTM; mixed conventional and remote aerodrome ATS operations — the situation when a conventional tower is also providing ATS to another aerodrome remotely (additionally and simultaneously with the ATS provision to the local aerodrome), through the use of a visual surveillance system providing the visual view of the remote aerodrome. (In this particular situation, the conventional tower could at the same time be considered a remote tower.); and the simultaneous provision of ATS to a specific area or a specific function to more than one aerodrome, e.g. a clearance delivery position to more than one aerodrome. Note - Clearance delivery per se would not require a visual presentation/visual surveillance system and would therefore not be considered either a ‘remote tower’ or an ‘RTM’ as defined in Chapter 2 of this document.