Currently, operational procedures on runways, taxiways and aprons depend on pilots, air traffic controllers (ATCOs), and vehicle drivers, who rely on visual aids (lighting, signage, and markings) to estimate their respective relative positions and avoid the risk of collision. To cope with the continuous growth in air traffic, it is essential to improve the efficiency and safety of ground operations at airports. A-SMGCS (Advanced Surface Movement Guidance and Control System) is a concept developed by ICAO (International Civil Aviation Organisation) which encompasses the introduction of new technologies and new operational procedures to improve the efficiency of ground operations at airports. The European Commission Transport Directorate has been actively encouraging A-SMGCS developments through a number of projects, and new procedures using A-SMGCS technologies are being developed.