7754 Vol 2 Flyleaf - ICAO Public Maps

III-J1
Attachment I
GUIDANCE MATERIAL ON INTERSECTION TAKE-OFF AND
MULTIPLE LINE-UPS ON THE SAME RUNWAY
INTERSECTION TAKE-OFF
General
1. Intersection take-offs can increase aerodrome
capacity by reducing taxi time from the parking position to
take-off position. Intersection take-offs can also contribute
to wake vortex avoidance by allowing a lighter aircraft to
take off ahead of a heavy aircraft awaiting departure at the
threshold.
2. The relevant Regional Supplementary Procedures
(Doc 7030) gives flexibility to ATC to expedite the
departure of an aircraft before a succeeding
landing/departing aircraft. It allows ATC to organize its
departures in a more rational manner, for instance by
positioning twin-propellers or short-haul jets at successive
intersections, thereby permitting a rapid clearing of the
runway axis by the first aircraft and a high rate of climb for
the second.
3. Under specified conditions, intersection take-offs
can be requested by a pilot or offered by ATC in order to
expedite traffic. These conditions include the publication of
reduced runway declared distances, the provision of
marking and lighting aids together with appropriate signs,
and the use of appropriate phraseologies.
Compliance with risk assessment
4. As this procedure must include pilot concurrence,
it is incumbent upon the pilot-in-command to ensure that
the reduced declared distances from that intersection
conform with certified aircraft performances. Therefore, the
risk of an accident/incident is no greater than in the case of
a take-off using the full length of the runway. Furthermore,
no reduction in separation minima are proposed in this
procedure.
Specific consideration
5. In determining the suitability of an aerodrome
layout to accommodate intersection take-off, account shall
be taken of the characteristics (length, wing span) of the
aircraft expected to conduct intersection take-off and the
distance between an intersection holding position and the
centerline of the taxiway to the rear.
6. A runway and parallel taxiway layout based on
minimum separation standards may provide insufficient
space to hold a large aircraft at an intersection while
allowing other aircraft to taxi behind.
Notification to users
7. Thus, any limitation in terms of aircraft size versus
holding position should be brought to the attention of users,
and pilots should be reminded to strictly adhere to the
holding procedures/techniques to avoid eroding aircraft
separation on the ground.
8. In this context, ATS should also be given
guidance/training to ensure that when intersection take-offs
are in use, sufficient clearance is maintained between an
aircraft holding at an intersection and any other aircraft
cleared to taxi behind that aircraft.
Multiple line-ups on the same runway
9. Under specified conditions, line-up instructions
may be issued to more than one departing aircraft at
different points on the same runway, thereby further