GM1 ADR-DSN.M.730 Stop bars

(a)A stop bar is intended to be controlled either manually or automatically by air traffic services.

(b)Runway incursions may take place in all visibility or weather conditions. The provision of stop bars at runway-holding positions and their use at night and in visibility conditions greater than 550 m runway visual range can form part of effective runway incursion prevention measures.

(c)A pair of elevated lights should be added to each end of the stop bar where the in-pavement stop bar lights might be obscured from a pilot’s view, for example by snow or rain, or where a pilot may be required to stop the aircraft in a position so close to the lights that they are blocked from view by the structure of the aircraft.

(d)Where necessary, to enhance conspicuity of an existing stop bar, extra lights are installed uniformly.

(e)Where the additional lights specified in (c) above are provided, these lights should be located not less than 3 m from the taxiway edge.

(f)Where the additional lights specified in (c) above are provided, these lights should have the same characteristics as the lights in the stop bar but should be visible to approaching aircraft up to the stop bar position.

(g)High-intensity stop bars should only be used in case of an absolute necessity and following a specific study.

(h)Care is required in the design of the electrical system to ensure that all of the lights of a stop bar will not fail at the same time. Guidance on this issue is given in ICAO Doc 9157, Aerodrome Design Manual, Part 5, Electrical Systems.

[Issue: ADR-DSN/3]