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Human Factors principles which facilitate its optimum use.
Note.- Guidance material on the application of Human
Factors principles can be found in the Human Factors Training
Manual (Doc 9683).
2.1.2 Each type of chart shall provide information
appropriate to the phase of flight, to ensure the sale and
expeditious operation of the aircraft.
2.1.3 The presentation of information shall be accurate,
free from distortion and clutter, unambiguous, and be readable
under all normal operating conditions.
2.1.4 Colours or tints and type size used shall be such that
the chart can be easily read and interpreted by the pilot in
varying conditions of natural and artificial light.
2.1.5 The information shall be in a form whichenables
the pilot to acquire it in a reasonable time consistent with
workload and operating conditions.
2.1.6 The presentation of information provided on each
type of chart shall permit smooth transition from cliart tv chart
as appropriate to the phase of flight.
2.1.7 Recommendation.- The charts should be True
North orientated.
2.1.8 Recommendation.- The basic sheet size of the
charts should be 210 x I48 mm (8.27 x 5.82 in) (A5).
2.2 Titles
The title of a chart or chart series prepared in accordance with
the specifications contained in this Annex and intended to
satisfy the function of the chart, shall be that of the relevant
chapter heading as modified by application of any Standard
contained therein, except that such title shall not include
"ICAO" unless the chart conforms with all Standards specified
in this Chapter 2 and any specified for the particular chart.
2.3 Miscellaneous information
2.3.1 The marginal note layout shall be as given in Appendix
1, except as otherwise specified for a particular chart.
2.3.2 The following information shall be shown on the
face of each chart unless otherwise stated in the specification
of the chart concerned:
1) designation or title of the chart series;
Note.- The title may be abbreviated.
2) name and reference of the sheet;
3) on each margin an indication of the adjoining sheet
(when applicable).
2.3.3 A legend to the symbols and abbreviations used
shall be provided. The legend shall be on the face or reverse
of each chart except that, where it is impracticable for rcasons
of space, a legend may be published separately.
2.3.4 The name and adequate address of the producing
agency shall be shown in the margin of the chart except that,
where the chart is published as part of an aeronautical
document, this information may be placed in the front of that
document.
2.4 Symbols
Symbols used shall conform to those shown in Appendix 2 -
ICAO Chart Symbols, except that where it is desired to show
ANNEX 4 2-1 1/11/01
Annex 4 - A ernnautical Charts
on an aeronautical chart special features or items of
importance to civil aviation for which no ICAO symbol is at
present provided, any appropriate symbol may be chosen for
this purpose, provided that it does not cause confusion with
any existing ICAO chart symbol or impair the legibility of the
chart.
Note.- The size and prominence of symbols and the
thickness and spacing of lines may be varied a.ccording to the
scale and functions of the chart, with due regard to the
irrlportarlce of the irrforfrmtiorr they corrvey.
2.5 Units of measurement
2.5.1 Distances shall be derived as geodesic distances.
2.5.2 Distances shall be expressed in either kilometres or
nautical miles or both, provided the units are clearly
differentiated.
2.5.3 Altitudes, elevations and heights shall be expressed
in either metres or feet or both, provided the units are clearly
differentiated.
2.5.4 Linear dimensions on aerodromes and short
distances shall be expressed in metres.
2.5.5 The order of resolution of distances, dimensions,
elevations and heights shall be that as specified for a particular
chart.
2.5.6 The units of measurement used to express distances,
altitudes, elevations and heights shall be conspicuously stated
on the face of each chart.
2.5.7 Conversion scales (kilometres/nautical miles,
metreslfeet) shall be provided on each chart on which
distances, elevations or altitudes are shown. The conversion
scales shall be placed on the face of each chart.
2.6 Scale and projection
2.6.1 For charts of large areas, the name and basic
parameters and scale of the projection shall be indicated.
2.6.2 For charts of small areas, a linear scale only shall be
indicated.
2.7 Date of validity
of aeronautical information
2.8 Spelling of geographical names
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ICAO 附件4 Aeronautical Charts an04_10ed(14)
