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to the function of the chart.
10.6.2 Recommendation.- To improve situational
awareness in areas where significant relief exists, the chart
ANNEX 4 10-1 111 1/01
Annex 4 - Aeronarrtieal Charts Chapter 10
should be drawn to scale and all relief exceeding 300 m
( I 000 ft) above the aerodrome elevation should be shown by
smoothed contour lines, contour values and layer tints printed
in brown. Appropriate spot elevations, including the highest
elevation within each top contour line, should be shown
printed in block Sign~jicont obstacles should also be shown
Note 1.- The next higher suitable contour line appearing
on base topographic maps exceeding 300 m (1 000 ft) above
the aerodrome elevation may be selected to start layer tinting.
Note 2.- An appropriate brown coloul; on which half-tone
layer tinting is to be based, is specijied in Appendix 3 -
Colour Guide for contours and topographic features.
Note 3.- Appropriate spot elevations and sign@cant
obstacles are those provided by the procedures specialists.
10.7 Magnetic variation
Magnetic variation used in determining the magnetic bearings,
tracks and radials shall be shown to the nearest degree.
10.8 Bearings, tracks and radials
10.8.1 Bearings, tracks and radials shall be magnetic,
except as provided for in 10.8.2.
Note.- A note to this effect may be included on 'the chart.
10.8.2 Recommendation.- In areas of high latitude,
where it is determined by the appropriate authority that
reference to Magnetic North is impractical, another suitable
reference, i.e. True North or Grid North, should be used.
10.8.3 Where bearings, tracks and radials are given with
reference to True North or Grid North, this shall be clearly
indicated. When Grid North is used its reference grid meridian
shall be identified.
10.9 Aeronautical data
10.9.2 Prohibited, restricted and danger areas
Prohibited, restricted and danger areas which may affect the
execution of the procedures shall be shown with their
identification and vertical limits.
10.9.3 Minimum sector altitude
10.9.3.1 The established minimum sector altitude shall be
shown with a clear indication of the sector to which it applies.
10.9.3.2 Where the minimum sector altitude has not been
established, the chart shall be drawn to scale and area
minimum altitudes shall be shown within quadrilaterals
formed by the parallels and meridians. Area minimum
altitudes shall also be shown in those parts of the chart not
covered by the minimum sector altitude.
Note.- Depending on the selected chart scale,
quadrilaterals formed by the parallels and meridians normally
correspond to the half-degree of latitude and longitude.
10.9.4 Air traffic services system
10.9.4.1 The components of the relevant air traffic
services system shall be shown.
10.9.4.1.1 The components shall comprise the following:
1) a graphic portrayal of each standard arrival route -
instrument, including:
a) route designator;
b) significant points defining the route;
c) track or radial to the nearest degree along each
segment of the route;
d) distances to the nearest kilometre or nautical mile
between significant points;
e) minimum flight altitudes to the nearest higher 50 m or
100 ft along the route or route segments;
f) altitude to the nearest higher 50 m or 100 ftlflight level
restrictions, where established;
10.9.1 Aerodromes
10.9.1.1 The aerodrome of landing shall be shown by the
runway pattern.
10.9.1.2 All aerodromes which affect the designated
standard anival route - instrument shall be shown and
identified. Where appropriate the aerodrome runway patterns
shall be shown.
Note.- Where radar procedures are used to vector
aircraji to or from a signijicant point on a standard
arrival route, they may be shown.
2) the radio navigation aid(s) associated with the route(s)
including:
a) plain language name;
Chapter 10 Annex 4 - Aeronautical Charts
b) identification;
c) frequency;
d) geographical coordinates in degrees, minutes and
seconds:
e) for DME, the channel and the elevation of the
transmitting antenna of the DME to the nearest 30 m
(100 ft);
3) the name-codes of the significant points not marked by
the position of a radio navigation aid, their geographical
coordinates in degrees, minutes and seconds and the
bearing to the nearest tenth of a degree and distance to
the nearest two-tenths of a kilometre (tenth of a nautical
mile) from the reference radio navigation aid;
4) applicable holding patterns;
5) transition altitudelheight to the nearest higher 300 m or
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