A-SMGCS Level 3 (Conflict Detection) involves the detection of all conflicts on the movement area as well as improved guidance and planning for use by controllers.Appropriate alerts are generated for the controllers in case of conflicts between all vehicles on runways and the incursion of aircraft onto designated restricted areas. A-SMGCS Level 2 (Surveillance + Safety Nets) adds safety nets which protect runways and designated areas and the associated procedures.The controllers are given traffic position and identity information which is an important step forward from the traditional Surface Movement Radar (SMR) image. The procedures concern identification and the issuance of ATC instructions and clearances. A-SMGCS Level 1 (improved Surveillance) makes use of improved surveillance and procedures, covering the manoeuvring area for ground vehicles and the movement area for aircraft.In 2004, ICAO defines 4 levels of A-SMGCS implementation based on a complexity and traffic density approach: (Source: EUROCONTROL) Basic FunctionsĪs described in the ICAO Manual (see further reading), A-SMGCS consisits of four basic functions: A visual example of A-SMGCS display at Riga airport.

What is control surface