Mobility of goods and people is a basic need of the European society in the age of sustainable growth and globalisation of the world economy. The Vision 2020 describes Air Transport and Aeronautics as 'Key Assets for the Future of Europe'. It calls for an air transport system able to cope with a threefold air traffic demand with fivefold safety, halved cost, a 99 % punctuality and limited environmental impact in 2020. In a two-phase approach, EMMA will consolidate the surveillance and conflict alert functions, and EMMA2 will focus on advanced onboard guidance support to pilots and planning support to controllers. Due to the growth in air transport, airport capacity is expected to become the major bottleneck in the near future. The EMMA project, together with the subsequent EMMA2, aims to provide the most significant R&D contribution to the Vision 2020 goals in the field of 'Advanced surface movement guidance and control system' (A-SMGCS). This will be done in a four-year timeframe (from 2004 to 2008), by maturing and validating the A-SMGCS concept as an integrated air-ground system, seamlessly embedded in the overall ATM system. In a two phase approach, EMMA will first consolidate the surveillance and conflict alert functions, and the successor project, EMMA2, will focus on advanced onboard guidance support to pilots and planning support to controllers. The main objective of EMMA is to enable the harmonised A-SMGCS implementation at European airports. For this reason, it is important to bring together users, service providers, research organisations and manufacturers. The Integrated Project EMMA has lead to comprehensive results that supported the regulation and standardisation bodies, as well as the industry, in the early and efficient implementation of A-SMGCS. Significant progress in maturation of technical equipment and on operational issues such as proper transponder operating procedure was made. EMMA has made a further step to promote the use of A-SMGCS in all weather conditions by proposing adapted procedures. Within the EMMA project, A-SMGCS testbed systems were installed, verified and validated at three different airports, in several real time simulations and by on-board installations in simulation. In addition, long-term testing was carried out on the operational A-SMGCS at Paris, CDG airport. The EMMA consortium specified a comprehensive A-SMGCS concept incorporating surveillance, control, routing and guidance services as well as new onboard-related A-SMGCS services. EMMA delivered recommendations for A-SMGCS 'implementation packages' that are tailored to the user's needs. A-SMGCS Levels 1 & 2 were implemented and tested at Prague - Ruzyne, Toulouse - Blagnac and Milano - Malpensa. Even if measured results did not always reach the ICAO equirements, the three A-SMGCS implementations demonstrated operational benefits. The three A-SMGCS implementations have been used as baseline for the follow-up project, EMMA2, during which more advanced A-SMGCS features shall be added and validated. The specified concept supports the stepwise implementation of a complete A-SMGCS. This concept for the higher levels of A-SMGCS has to be given careful consideration due to the changing of operational procedures, shifting responsibilities from human to equipment, necessary harmonisation between airports, appropriate qualification/certification of both ground control and onboard equipment, and latency of technical deployment on aircraft fleet. EMMA and EMMA2 are important milestones towards a Europe-wide introduction of A-SMGCS in order to increase the safety, the throughput and the efficiency of airports in compliance with Eurocontrol and in view of a worldwide ICAO standardisation. Both projects shall support the SESAR initiative by close cooperation during the definition phase.