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danger areas
Recommendation.- Prohibited, restricted and danger
areas should be shown when considered to be of importance
to air navigation.
18.6.12 Wooded areas
Recommendation.- Wooded areas of large extent should 18.8.4 Air traffic services system
be shown.
18.8.4.1 Recommendation.- Significant elements of the
air trafic services system should be shown when considered to
18.6.13 Date of topographic information be of importance to air navigation.
The date of latest information shown on the topographic base 18.8.4.2 Recommendation.- Where appropriate, the
shall be indicated in the margin. air defence identification zone (ADIZ) should be shown and
properly identified.
18.6.14 Colours Note.- ADIZ procedures may be described in the chart
legend.
18.6.14.1 Recornmendation.- Subdued colours should
be used for the chart background to facilitate plotting.
18.8.5 Radio navigation aids
18.6.14.2 Recommendation.- Good colour contrast
should be ensured to emphasize features important to visual Note.- Radio aids to navigation may be shown by the
air navigation. appropriate symbol and named.
2511 1/04
No. 53
CHAPTER 21. RADAR MINIMUM ALTITUDE CHART - ICAO
21.1 Function 21.4.2 Recommendation.- Graduation marh should be
placed at consistent intervals along the neat lines, as
21.1.1 This supplementary chart shall provide inform- appropriate.
ation that will enable flight crews to monitor and cross-check
altitudes assigned while under radar control.
21.5 Identification
Note.- The objectives of the air traftic control service as
prescribed in Annex 11 do not include prevention of collision
with terrain. Therefore, pilots are at all times responsible to
ensure that any clearances issued by air traffic control units
are safe in this respect, except when an ZFRflight k vectored
by radar. See the Procedures for Air Navigation Services -
Air Traffic Management (PANS-ATM, Doc 4444), Chapter, 8,
8.6.5.2.
21.1.2 A note indicating that the chart may only be used
for cross-checking of altitudes assigned while under radar
control shall be prominently displayed on the face of the chart.
21.2 Availability
The chart shall be identified by the name of the aerodrome for
which the radar vectoring procedures are established or, when
procedures apply to more than one aerodrome, the name
associated with the airspace portrayed.
Note.- The name may be that of the city which the
aerodrome serves or, when the procedures apply to more than
one aerodrome, that of the air trafic services centre or the
largest city or town situated in the area covered by the chart.
21.6 Culture and topography
21.6.1 Generalized shorelines of all open water areas,
large lakes and rivers shall be shown except where they
conflict with data more applicable to the function of the chart.
Recommendation.- The Radar Minimum Altitude Chart
- ZCAO should be made available, in the manner prescribed 21.6.2 Appropriate spot elevations and obstacles shall be
in 1.3.2, where radar vectoring procedures are established and Sh~wn.
radar minimum altitudes cannot be shown adequately on the
Area Chart - ZCAO, Standard Departure Chart - Instrument Note.- Appropriate spot elevations and obstacles are those
(SZD) - ZCAO or Standard Arrival Chart - Instrument provided by the procedures specialist.
(STAR) - ICAO.
21.7 Magnetic variation
21.3 Coverage and scale The average magnetic variation of the area covered by the
chart shall be shown to the nearest degree.
21.3.1 The coverage of the chart shall be sufficient to
effectively show the information associated with radar
vectoring procedures. 21.8 Bearings, tracks and radials
21.3.2 The chart shall be drawn to scale. 21.8.1 Bearings, tracks and radials shall be magnetic,
except as provided for in 21.8.2.
21.3.3 Recommendation.- The chart should be drawn
to the same scale as the associated Area Chart - ZCAO. 2 1.8.2 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.
21.4 Projection
21.8.3 Where bearings, tracks or radials are given with
21.4.1 Recommendation.- A conformal projection on reference to True North or Grid North, this shall be clearly
which a straight lint? approximates a geodesic line should be indicated. When Grid North is used its reference grid meridian
used. shall be identified.
ANNEX 4 2511 1/04
No. 53
Annex 4 - Aeronautical Charts Chapter 21
21.9 Aeronautical data
2 1.9.1 Aerodromes
21.9.1.1 All aerodromes that affect the terminal routings
　
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