16.7.13  Date of topographic information is not shown. 
16.8.2  Date of isogonic information is shown in the chart legend. 
16.9.2.1  Only airports published in the National Flight Data Digest are charted. They may be omitted if in congested areas or if airports with better facilities are nearby. 
16.9.2.2  Other than hard surface runways are shown by symbol. 
16.9.3.1  Obstacles greater than 200 feet are shown. Obstacles 200 feet or less may be shown. 
16.9.4  Alert Areas, Military Operating Areas and Warning Areas are also shown. 
16.9.5.1  Class D airspace and Class E (surface) airspace are not shown. 
16.9.6  NAVAIDs without voice capability are shown with their frequency underlined. 
16.9.7.1  Only aeronautical ground lights that operate continuously are shown. 
16.9.9.2  Only marine lights that operate year round, with a range of at least 10 NM, and are omnidirectional are shown. 
Chapter 17  Aeronautical Chart – ICAO 1:500 000 
17.3.1  Linear scales are shown in the following order: nautical miles, statute miles, kilometers. 
17.4.3  Charts are folded in eleven vertical panels and one horizontal fold. 
17.4.4  Relationship of chart to WAC series is not shown. 
17.5.4.1  The 10 minute interval mark is .10 inches on both sides of the graticule line. 
17.6.1.1  Relationship of chart to WAC series is not shown. 
17.7.2.2  Tunnels, if possible, are shown wherever they exist.  Prominent tunnels are shown pictorially. 
17.7.3.1  Roads are shown for radar and visual value and for distinct configurations that provide visual checkpoint value. 
17.7.3.2  Roads are not shown within outlined populated areas. Dual lane highways are shown within large scale insets. 
17.7.9.2  Coordinates are shown to the nearest minute. 
17.7.9.3  Halo effect is only shown for elevation value. 
17.7.10.1  Notes will read ‘Relief data incomplete’ or ‘Limits of reliable relief information.’ 
17.7.10.2  Unreliable spot elevations are shown with an ‘x’ preceding the value. 
17.7.12.1  Wooded areas are not shown. 
17.7.13  Date of topographic information is not shown. 
17.8.2  Date of isogonic information is shown in the chart legend. 
17.9.2.1  Only airports published in the National Flight Data Digest are charted. They may be omitted if in congested areas or if airports with better facilities are nearby. 
17.9.2.2  Other than hard surface runways are shown by symbol. 
17.9.2.3  Only abandoned airports with at least a 3000 feet hard surface runway and with landmark value are shown. 
17.9.3.1  Obstacles greater than 200 feet are shown. Obstacles 200 feet or less may be shown. 
17.9.4  Alert Areas, Military Operations Areas, and Warning Areas are also shown. 
17.9.6  NAVAIDs without voice capability are shown with their frequency underlined. 
17.9.7.1  Only aeronautical ground lights that operate continuously are shown. 
17.9.7.2  Only marine lights that operate year round, with a range of at least 10 NM, and are omnidirectional are shown. 

Appendix 2  ICAO Chart Symbols 
No. 21  Tidal flats are shown in brown stipple over the blue open water tint. 
No. 45  Rocks awash are shown by a six.armed symbol as adopted by the International Hydrographic Bureau. 
No. 54, 61  Spaces between sides of bridge and road or railroad symbols are filled solid. 
No. 70  Oil or gas fields are shown with an oil well derrick symbol. 
No. 77  Ruins are shown by a solid square, properly annotated. 
No. 94  The runway surface indicator (letter H) and the lighting indicator (letter L) are not normally used on high altitude Radio Navigation Charts. Only those airports with a minimum of 5,000 feet hard.surfaced runways are shown. The letter H is not used on low altitude Radio Navigation Charts. All airports depicted have hard.surfaced runways, excepting that where the letter ‘‘S’’ follows the runway length, the runway surface is soft. On Visual Navigation Charts of the 1:500 000 scale, a miniature runway layout depiction indicates airports with hard.surfaced runways at least 1,500 feet long. 
No. 110  Aerodrome traffic zones are termed ‘‘SURFACE AREAS’’ in U.S. usage. These are all of standard dimensions. Limits are not shown, but airports at which SURFACE AREAS have been established are indicated by a color.coded airport symbol. 
　
中國航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：美國航行情報(bào)匯編 AERONAUTICAL INFORMATION PUBLICATION AIP 1(42)