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ROUTE: (Also refer to the following paragraphs below - ROUTE DESIGNATORS, SIGNIFICANT POINTS, CHANGE OF SPEED OR LEVEL, CHANGE OF FLIGHT RULES AND CRUISE CLIMB).
a. FLIGHTS ALONG AIRWAYS/ROUTES
(1) Identification of SID if used.
(2)
If the airport of departure is located on the airway/route, enter the designation of the first airway/route. If the airport is not on the airway/route, enter the code "DCT", the point where the airway/route is joined and the airway/route designator.
(3)
Enter each point at which a Change of Speed or Level, a Change of Route and/or a Change of Flight is planned to be initiated (refer to the appropriate entry below). Each of these points must be followed by the designator of the next airway/route segment (even if the same as the previous one) or by the code "DCT" if the flight to the next point will be off airways/route unless both points are defined by geographical coordinates.
(4) Identification of STAR if used.
NOTE: When a transition is planned between a lower and upper Air Traffic Control route, and the routes are oriented in the same direction, the point of transition need not be inserted.
NOTE: An approved altitude reservation (ALTRV) cannot replace the route of flight in this item. The entire route of flight must be entered and the ALTRV should be included in Item 18, Other Information.
b. FLIGHT OFF AIRWAYS/ROUTES
(1)
Enter points normally not more than 30 minutes flying time or 370 km (200nm) apart, including each point at which a Change of Speed or Level, a Change of Track, or a Change of Flight Rules is planned to be initiated.
When required by the appropriate ATC authorities, define the track of flights operating predominantly in an east-west direction between N70° and S70° by reference to significant points formed by the intersections of half or whole degrees of latitude with meridians spaced at intervals of 10 degrees of longitude. For flights operating in areas outside those latitudes the tracks shall be defined by significant points formed by the intersection of parallels of latitude with meridians normally spaced at 20 degrees longitude. The distance between significant points shall, as far as possible, not exceed one hour's flight time. Additional significant points shall be established as deemed necessary. For flights operating predominantly in a north-south direction, define tracks by reference to significant points formed by the intersection of whole degrees of longitude with specified parallels of latitude which are spaced at 5 degrees.
(2)
Enter "DCT" between successive points unless both points are defined by geographical coordinates or by bearing and distance.
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AIRWAY/ROUTE DESIGNATORS - Use the coded designator (2 to 7 characters) assigned to the airway/route, e.g., B1, R14, UB10.
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SIGNIFICANT POINTS/POINTS ALONG AIRWAY/ROUTE - Identify points in the Route Section in the following order of priority:
a. The coded designator (2 to 5 characters) assigned to the point, e.g., VH, GEO, WHITE.
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