Draft ICAO Circular on NLA.pdf - Airports Council International

f) wake turbulence;
g) selection of gates;
<strong>ICAO</strong> Version 4.1 — 15 March 2004
-6-
h) aerodrome maintenance services (e.g. snow removal to ensure adequate emergency
vehicle to aircraft clearance);
i) dimensions of aerodrome or aircraft maintenance facilities; and
j) equipment for disabled aeroplane removal.
2.2.6 Wing tip vertical clearance
2.2.6.1 The wing tip vertical clearance may influence:
a) taxiway separation distances with height limited object;
b) aprons and holding bays clearances with height limited object;
c) aerodrome maintenance services (e.g. snow removal); and
d) airfield signage clearances.
2.2.7 Cockpit view
2.2.7.1 The relevant geometric parameters to assess the cockpit view are cockpit height, cockpit
cut-off angle and corresponding obscured segment.
2.2.7.2 The cockpit view may influence:
a) runway visual references;.
b) runway sight distance;
c) taxiing operations on straight and curved sections;
d) markings and signs on runways, taxiways, aprons and holding bays; and
e) lights: In low visibility conditions, the number and spacing of visible lights when taxiing
may depend on the cockpit view.
2.2.8 Pilot-eye position to nose landing gear
and main landing gear distances
2.2.8.1 The design of taxiway curves is based on the cockpit-over-centre line concept. Pilots eye
position to nose landing gear and main landing gear distances may influence:
a) taxiway fillets;