These Guidelines specify the minimum requirements and provide comprehensive guidance for the definition, implementation, optimisation and operation of Approach Path Montitor (APM).
Part I - describes the APM concept of operations and specific requirements on APM
Part II - contains overall guidance for the complete lifecycle of APM
Part III - specifies a generic example of an APM implementation and provides detailed guidance for optimisation and testing of APM
Together with similar Guidelines for Short Term Conflict Alert (STCA), Minimum Safe Altitude Warning (MSAW) and Area Proximity Warning (APW), these documents provide Level 3 documentation for evolutionary improvement of ground-based safety nets.