1. 1 Considering the requirements of automation, the purpose of using route codes and RNP types suitable for designated ATS flight segments, routes or areas is to enable drivers and ATS to: a) clearly identify any ATS route without using ground coordinates or other methods; B) If applicable, it can explain the specific vertical structure of ATS route in airspace; C) When running along ATS route or in a specific area, it can indicate the accuracy of required navigation performance; And d) be able to indicate the route mainly or exclusively used for certain types of aircraft. Note 1: Before RNP is introduced to the world, all reference materials about RNP in this appendix are also applicable to RNAV routes, if navigation performance accuracy requirements have been specified. Note 2: 2: The publication specifications of RNP type are contained in Appendix 4, Appendix 15 and Appendix 1 in Chapter 7. Note 3: As this appendix is used for navigation planning, the specified RNP type cannot be regarded as part of ATS route code. 1.2 In order to meet this purpose, the code name must: a) identify any ATS route in a simple and unique way; B) avoid duplication; C) Make both ground and air automation systems applicable; D) The shortest use time in operation; E) It has the possibility of full development, so that there is no need for fundamental changes in the future. 1.3 In addition to standard departure and approach routes, controlled, consulting and uncontrolled ATS routes shall be identified according to the following provisions.
2. Composition of code name
2. The route code of1ATS must contain the basic code, supplemented if necessary: a) a prefix according to the provisions of Article 2.3; B) Add another letter according to Article 2.4. 2. 1. 1 The number of words required to compose the code should not exceed six characters. 2. 1.2 If possible, the maximum number of words required to compose a code is five characters. 2.2 The basic code should contain a letter followed by the number 1-999. 2.2. 1 This letter should be selected from the following letters: a) A, B, G, R: part of the regional route network used as ATS routes, but not as regional navigation routes; B) L, M, N and P: regional navigation routes used as part of the regional route network of ATS routes; C) H, J, V, W: used as a part of the regional route network that does not belong to ATS routes, nor is it a regional navigation route; D) Q, T, Y and Z: used for regional navigation routes that do not belong to the regional route network of ATS routes. 2.3 If applicable, a supplementary letter should be added as a prefix before the basic code according to the following instructions: a) K: indicates the low-altitude route mainly designated for helicopters; B) U: indicates that the air route (or part of the air route) is located in high-altitude airspace; C) S: refers to the air route designed for supersonic aircraft during acceleration, deceleration and supersonic flight. 2.4 According to the regulations of relevant ATS authorities or regional navigation agreements, a supplementary letter can be added after the relevant ATS route code according to the following regulations to indicate the service type provided by the route or its required steering performance: a) Y: RNP 1 route at an altitude of 200(FL200) or above, and the letter Y indicates all turns on the route between 30 degrees and 90 degrees. It must be carried out within the tolerance range of RNP fine error allowed by straight leg tangent, and its radius is limited within 22.5 nautical miles (for example, A123Y [1]); B) Z: RNP 1 airline, altitude layer 190(FL 190) and below. The letter Z indicates that all turns between 30 degrees and 90 degrees on the route must be carried out within the RNP precision tolerance allowed by the tangent between straight lines, and its defined radius is 15 nautical miles (for example, G246Z [65436] C) F: on the route (or part of the route), the letter F indicates that only consulting services are provided; D) G: On the air route (or part of the air route), the letter G indicates that only flight information services are provided. Note 1: due to the limitation of display equipment on the plane, the supplementary letters "f", "g", "y" or "z" may not be displayed to the pilot. Note 2: According to the provisions of Annex 4 and Annex 15, indicate the implementation route or part of the route as the control route, consultation route or flight information route in the chart and navigation data compilation. Note 3: Countries can use the conditions discussed in the RNP Manual (Doc 96 13) to specify the controlled steering performance listed in 2.4 (a) and (b).
3. Naming of basic codes
3. The basic code of1ATS route must be specified according to the following principles: 3. 1. 1 trunk route, regardless of its terminal area, country or region, only one basic code should be specified for its full length. Note: This is especially important when using ATS automatic data processing and computerized airborne pilot equipment. 3. 1.2 If two or more trunk routes have * * * the same flight segments, the code of each route should be specified separately, unless this designation brings difficulties to the provision of air traffic services, in which case, only one code should be specified through * * * agreement. 3. 1.3 The base code assigned to one route may not be assigned to any other route. 3. 1.4 The codes required by each contracting state must be notified to the regional office of the International Civil Aviation Organization for coordination. 4. The use of code in communication
4. 1 In printed communication, at any time, the code name should be represented by no less than two characters and no more than six characters. 4.2 During the call, the basic letters of the code must be pronounced according to the phonetic symbols of the International Civil Aviation Organization. 4.3 When using the prefix K, U or S specified in Article 2.3, the following pronunciations should be made during the call: K-Kopteru-upper- Supersonic "Kopter" should be pronounced as "helicopter", and "Upper" and "Supersonic" should be pronounced in English. 4.4 When using the letters "F", "G", "Y" or "Z" specified in 2.4 above, the crew should not be required to use these letters in the call.