||With an eye on airport safety and future expansion, San FranciscoInternational Airport has been investing in state-of-the-art computertechnology to improve facilities maintenance, speed construction projects,and reduce operation costs. Since the San Francisco Chamber ofCommerce purchased the 100 acres off Old Bayshore Highway at the edgeof South San Francisco in 1927, the Airport has been continuouslyexpanding and increasing in complexity with each decade. With everyexpansion and increase in passenger load, more and more tools arerequired to maintain the Airport and keep it functioning. Therefore, whenthe Airport started preparing for another expansion, the elements werealready in place for the development of a geographical information system(GIS). The GIS will be the foundation for other systems, such asautomated facilities management or computer aided dispatch to eventuallycreate an overall computerized information model of the airport propertiesincluding a three-dimensional electronic model of the airfield andfacilities. The decision to computerize was designed to increase theefficiency and safety of the Airport in a broad range of functions.