MIL-STD-1477 Symbols for Army System Displays MetricThis standard prescribes the physical characteristics of ground and air track symbols, unit/installation symbols, control measures symbols, equipment symbols, and associated alphanumeric information for U.S. Army Combined Arms system displays which are generated by electronic, optic, or infrared technology and presents information in real time or near-real time.

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MIL-STD-1477C(MI)

5.1.1.2.4.1  Ground environment.  Symbols for the ground environment shall conform to the following tables for the applications indicated:

Table IX:        Control points Table XIV:     Control lines Table XV:      Control areas Table XVI:     Control routes

Table XVII:    Control movements

Table XVIII:  Crossings

Table XIX:     Demolitions, point and linear obstacles

5.1.1.2.4.2  Air environment.  Symbols for the air environment shall conform to the following tables for the applications indicated:

Table XX:      Control points Table XXI:     Control lines Table XXII:    Control areas Table XXIII:  Control routes

5.1.1.2.4.3  Special.  Symbols for other special applications shall conform to the following tables for the applications indicated:

Table XXIV:  Mines and mine fields.

Table XV:      Nuclear, biological, and Chemical (NBC)

5.1.1.2.5  Ground equipment.  If required, symbols for individual ground equipment items, including aircraft, shall be displayed/presented only when such equipment is stationary; i.e., in a non-track status.  When items of ground equipment start to move and are detected by a sensor, they shall be displayed as land-track symbols in accordance with Table I.  A capability should be provided to allow an operator to hook (select) any land track as well as other tracks and display track- amplifying information (including type of equipment) in an auxiliary display readout area or window.  Symbols for stationary ground equipment shall conform to Table XXVI through Table XXX.

5.1.1.3  Aircraft symbology.  See applicable provisions of MIL-STD-1787.

5.1.2  Line structure.  Not more than six different line structures shall be used to display battlefield geometry.  Those selected shall allow for maximum contrast and discrimination.  The line structures shall conform to Figure 1.  Line structure utilization shall also conform to the track unit, installation, equipment, and control measure symbols in Tables I through XXX.

5.1.3  Blinking.

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