Air Traffic Advisory Services are primarily designed to provide information that helps pilots maintain safe separation and avoid potential collisions, particularly in advisory airspace or along advisory routes (Class F airspace) where full Air Traffic Control (ATC) might not be available. Unlike ATC, which issues mandatory "clearances," the advisory service provides "suggestions" and essential flight information. This includes data on the relative position, altitude, and heading of other known aircraft in the vicinity that could pose a hazard. Pilots are also provided with significant weather updates, changes in the serviceability of navigation aids, and information on the condition of aerodromes. Because the information regarding surrounding traffic may be incomplete, the responsibility for collision avoidance remains with the pilot-in-command. This service is often a temporary measure used in regions where traffic density does not yet justify full-scale control but requires more than basic flight information to ensure an acceptable level of safety for Instrument Flight Rules (IFR) operations.