AUTOMATIC VEHICLE LOCATION SYSTEMS: A TOOL FOR COMPUTER AIDED DESPATCH SYSTEMS OF THE FUTURE. IN: CONFERENCE RECORD OF PAPERS PRESENTED AT THE FIRST VEHICLE NAVIGATION AND INFORMATION SYSTEMS CONFERENCE, TORONTO, ONTARIO, CANADA - SEPTEMBER 11-13, 1989

摘要: The Metropolitan Toronto Department of Ambulance Services is presently installing a Vehicle Location pilot system. This the culmination number years observation and examination user procedures needs, technology assessment definition attributes to be tested in project. At same time, committed itself computerization metrication previous imperial geocode - based map order compatible with U.T.M. co-ordinates adopted by Ontario Ministry Health Municipality Toronto. paper presents evolution system design from perspective examines conditions that led need for vehicle location. It compares operational expectation attainable technical performance such systems. components (location equipment, data transfer display equipment main processing unit) as they pertain are reviewed. various gathering methods described original attempts find local environment Also discussed additional applications may result implementation system, : status reporting, two-way transmission, "closest ambulance" indicator ability use determine "shortest route" information. prospect integrating Computer Aided Dispatch (C.A.D.) A.V.L.S. Centre discussed, maintain, dynamic manner, an updated mapping base. error sources inherent systems will analyzed ways minimize them, where possible, proposed. Some these errors generated electromagnetic interference some them time delay existing infrastructure limitations and/or over-specification A very good what expected do imperative before any made specify its characteristics. In conclusion, integrated approach D.A.S. has put together prepare next decade.