ED Decision 2017/021/R
(a) Applicability: A runway lead-in lighting system should be provided to avoid hazardous terrain.
(b) Location and positioning
(1) A runway lead-in lighting system should consist of groups of lights positioned:
(i) so as to define the desired approach path. Runway lead-in lighting systems may be curved, straight, or a combination thereof; and
(ii) so that one group should be sighted from the preceding group.
(2) The interval between adjacent groups should not exceed approximately 1 600 m.
(3) A runway lead-in lighting system should extend from a determined point up to a point where the approach lighting system if provided, or the runway lighting system is in view.
(4) Each group of lights of a runway lead-in lighting system should consist of at least three flashing lights in a linear or cluster configuration. The system should be augmented by steady burning lights where such lights would assist in identifying the system.
(c) Characteristics: The flashing lights and the steady burning lights should be white.
[Issue: ADR-DSN/4]
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