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runway minus 2', i.e. angle A minus 2'.
2.13 Coordination between aeronautical information
services and aerodrome authorities
2.13.1 To ensure that aeronautical information services
units obtain information to enable them to provide up-to-date
pre-flight information and to meet the need for in-flight
information, arrangements shall be made between aeronautical
information services and aerodrome authorities responsible for
aerodrome services to report to the responsible aeronautical
information services unit, with a minimum of delay:
a) information on aerodrome conditions (ref. 2.9,2.10,2.11
and 2.12);
b) the operational status of associated facilities, services and
navigation aids within their area of responsibility;
c) any other information considered to be of operational
significance.
2.13.2 Before introducing changes to the air navigation
2.12 Visual approach slope system, due account shall be taken by the services responsible
indicator systems for such changes of the time needed by the aeronautical
information service for the preparation, production and issue
The following information concerning a visual approach slope of relevant material for promulgation. To ensure timely
indicator system installation shall be made available: provision of the information to the aeronautical information
service, close coordination between those services concerned
a) associated runway designation number; is therefore required.
Chapter 2 Annex 14 -Aerodromes
2.13.3 Of a particular importance are changes to
aeronautical information that affect charts andlor computerbased
navigation systems which qualify to be notified by the
aeronautical information regulation and control (AIRAC)
system, as specified in Annex 15, Chapter 6 and Appendix 4.
The predetermined, internationally agreed AIRAC effective
dates in addition to 14 days postage time shall be observed by
the responsible aerodrome services when submitting the raw
informationldata to aeronautical information services.
2.13.4 The aerodrome services responsible for the
provision of raw aeronautical informationldata to the
aeronautical information services shall do that while taking
into account accuracy and integrity requirements for
aeronautical data as specified in Appendix 5 to this Annex.
Note 1.- Specifications for the issue of a NOTAM and
SNOWTAM are contained in Annex 15, Chapter 5 and
Appendices 6 and 2, respectively.
Note 2.- AIRAC information is distributed by the AIS at
least 42 days in advance of the AIRAC effective dates with the
objective of reaching recipients at least 28 days in advance of
the effective date.
Note 3.- The schedule of the predetennined internationally
agreed AIRAC common effective dates at intervals of 28 days,
including 6 November 1997 and guidance for the AIRAC use
are contained in the Aeronautical Information Services Manual
(Doc 8126, Chapter 2).
CHAPTER 3. PHYSICAL CHARACTERISTICS
3.1 Runways
Number and orientation
of runways
Introductory Note.- Many factors affect the determination
of the orientation, siting and number of runways.
One important factor is the usability factor, as determined
by the wind distribution, which is specified hereunder. Another
important factor is the alignment of the runway to facilitate the
provision of approaches conforming to the approach su$ace
specifications of Chapter 4. In Attachment A, Section I , information
is given concerning these and other factors.
When a new instrument runway is being located, particular
attention nee& to be given to areas over which aeroplanes
will be required to fly when following instrument approach
and missed approach procedures, so as to ensure that
obstacles in these areas or other factors will not restrict the
operation of the aeroplanes for which the runway is intended.
3.1.1 Recommendation.- The number and orientation
of runways at an aerodrome should be such that the usability
factor of the aerodrome is not less than 95 per cent for the
aeroplanes that the aerodrome is intended to serve.
3.1.2 Choice of maximum permissible
cross-wind components
Recommendation.- In the application of 3.1.1 it should
be assumed that landing or take-off of aeroplanes is, in normal
circumstances, precluded when the cross-wind component
exceeds:
- 37 W h(2 0 k~)i n the case of aeroplanes whose reference
jield length is 1 500 m or over, except that when
poor runway braking action owing to an insufficient
longitudinal coefficient of friction is experienced with
somefiequency, a cross-wind component not exceeding
24 M h (1 3 kt) should be assumed;
　
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