CS ADR-DSN.M.700 Rapid exit taxiway indicator lights (RETILs)

(a)Applicability:

(1)The inclusion of specifications for RETILs is not intended to imply that RETILs have to be provided at an aerodrome.

(2)Where installed, the purpose of RETILs is to provide pilots with distance-to-go information to the nearest rapid exit taxiway on the runway, to enhance situational awareness in low visibility conditions and enable pilots to apply braking action for more efficient roll-out and runway exit speeds.

(b)Location:

(1)RETILs should be located on the runway on the same side of the runway centre line as the associated rapid exit taxiway. The lights should be located 2 m apart and the light nearest to the runway centre line should be displaced 2 m from the runway centre line.

(2)Where more than one rapid exit taxiway exists on a runway, the set of RETILs for each exit should not overlap when displayed.

(c)Characteristics:

(1)RETILs are fixed lights and comprise a set of yellow unidirectional lights installed in the runway adjacent to the centre line. The lights are positioned in a 3-2-1 sequence at 100 m intervals prior to the point of tangency of the rapid exit taxiway centre line.

(2)RETILs should be supplied with power on a separate circuit to other runway lighting so that they may be used when other lighting is switched off.

(3)RETILs’ characteristics should be in accordance with the specifications in CS ADR-DSN.U.940, Figure U-10 or U-11, as appropriate.

(4)RETILs’ chromaticity should be in accordance with the specifications in CS ADR-DSN.U.930 and Figure U-1A or U-1B, as appropriate.

[Issue: ADR-DSN/4]