Safety track record of Aviation demonstrates that it is the safest means of travel and also as an industry whose people are focused on continuous improvement. The prime safety goal of the air traffic management (ATM) of en route commercial flights is to reduce the risk of mid-air collisions.<\/p>\n\n\n\n
According to ICAO Annex 11, the objectives of air traffic control (ATC) are to:<\/p>\n\n\n\n
ATC uses radar to monitor aircraft locations and radios to communicate with pilots. ATC issues clearances to ensure that aircraft are separated safely. <\/p>\n\n\n\n
When the designated minima is not maintained, the incident or hazard is reported by a code word to designate aircraft proximity in an air traffic incident report called as “AIR PROX”. An AIR PROX is a situation in which, in the opinion of a pilot or air traffic services personnel, the distance between aircraft as well as their relative positions and speed have been such that the safety of the aircraft involved may have been compromised. (ICAO Doc 4444: PANS-ATM).<\/p>\n\n\n\n ICAO defines a series of classifications for AIR PROX events which have been reported and subsequently investigated by an appropriate body. It is required that this classification should be assigned on the basis only of actual risk, not potential risk. This means that only the residual risk after any avoiding action is considered. The available classification categories are:<\/p>\n\n\n\n
Source: ICAO Doc 4444 PANS-ATM<\/em><\/p>\n\n\n\nWhat is “AIR PROX”<\/h2>\n\n\n\n