Andy Hon Wai Chun, City University of Hong Kong; Steve Ho Chuen Chan, Francis Ming Fai Tsang, and Dennis Wai Ming Yeung, Advanced Object Technologies Limited
SAS is an AI application developed for the Hong Kong International Airport (HKIA) at Chek Lap Kok. SAS uses constraint-programming techniques to assign parking stands to aircraft and schedules tow movements based on a set of business and operational constraints. The system provides planning, real-time operation, and problem solving capabilities. SAS generates a stand allocation plan that finely balances the objectives of the airlines/handling agents, the convenience of passengers, and the operational constraints of the airport. The system ensures a high standard of quality in customer service, airport safety, and utilization of stand resources. This paper also describes our experience in developing an AI system using standard off-the- shelf software components. SAS is an example of how development methodologies used to construct modern AI applications have become fully inline with mainstream practices.