Purpose and Scope

This page and its child pages contain the coding guidelines for the minimum and conditional data items of the Route and Route Segment subjects as defined in PANS-AIM.

PANS-AIM Appendix 1 (Aeronautical Data Catalogue) distinguishes between "ATS route" which is defined as:

A specified route designed for channelling the flow of traffic as necessary for the provision of air traffic services

and "Other route" which is defined as:

A specified route designed for channelling the flow of traffic as necessary without provision of air traffic services

For the AIXM coding guidelines no difference is made between ATS route and Other route.

In an AIP, Routes are published in the following sections:

  • ENR 3.1 Lower ATS routes

  • ENR 3.2 Upper ATS routes

  • ENR 3.3 Area navigation routes
  • ENR 3.4 Helicopter routes
  • ENR 3.5 Other routes

The term Route is used to mean variously, airway, advisory routes, controlled or uncontrolled routes, etc. excluding arrival and departure routes.

AIXM Model Overview

A change proposal (AIXM-519) for the next AIXM 5.2 version has been approved by the AIXM Change Control Board, in which an association is added to the Route class to allow for classification using AircraftCharacteristic attributes.

The coding guidelines provided here are aligned with forward/backward conversion rules contained in the AIXM-519 Change Proposal.

Coding Examples

The figure below gives a simple example of a route with designator "UP96", containing several route segments defined by en-route segments points, which may be a designated point or a navaid.

The unit "Amswell ACC" is providing air traffic service on the route segment starting at the enroute segment point "HDO  and ending at the enroute segment point HDO10" on frequency "120.300 MHZ". The route is available "forward" with series of levels "Odd" and "backward" with series of levels "Even".


More coding examples can be found in the AIP Data Set - Specimen (DONLON).

No.DescriptionXPath Expression
RTE-EX-01Lower ATS Route//aixm:RouteTimeSlice[@gml:id ='RTE_A6']
RTE-EX-02Upper ATS Route//aixm:RouteTimeSlice[@gml:id ='RTE_UA4']
RTE-EX-01RNAV Route//aixm:RouteTimeSlice[@gml:id ='RTE_UL123']
RTE-EX-01Helicopter Route//aixm:RouteTimeSlice[@gml:id ='RTE_HK123']
RSG-EX-01Route segment of Lower ATS route (incl.  MEA)

//aixm:RouteSegmentTimeSlice[@gml:id='RSG_A6_BOR_ROB'] |

RSG-EX-02Route segment of Upper ATS route//aixm:RouteSegmentTimeSlice[@gml:id='RSG_UA4_BARIM_WOB']
RSG-EX-03Route segment of RNAV route//aixm:RouteSegmentTimeSlice[@gml:id='RSG_UL123_ABOLA_ILURU']
RSG-EX-04Route segment of Lower ATS route (incl. MOCA)//aixm:RouteSegmentTimeSlice[@gml:id='RSG_A6_ROB_ROK']

Child Pages