Overview of London Ambulance System (Las) Disaster, 1992

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The London Ambulance Service (LAS) is world’s largest free ambulance service covering an area of more than 600 square miles with a population of 7 million people. On any given day, LAS transported more than 5,000 patients and handled more than 2,000 telephone calls. LAS employed over 2,700 people, including an operational staff of roughly 2,000 people. (Cited http://bobpinchbeck.com/College/Work/Papers/DispatchingFailure.htm)

In the mid-1980s, the LAS emergency despatch system was run completely manually. The details of a call, such as the location and type of incident, were noted on paper and sent to a central collection point where duplicate incidents will be eliminated. Call details were then given to an allocator who selected which vehicle and crew to send. The details were next passed to a dispatcher who contacted the ambulance driver by radio or phone. Problems arise when paper details are lost, they were not able to track incident and there are difficulties in tracing how the original call had been dealt with. In order to improve the quality of the service, they introduced a Computer Aided Dispatch (CAD) system in 1992. It was developed by two companies, Apricot Computers, a UK based hardware manufacturer, and System Options, a small UK software developer.

CAD is a method of dispatching services assisted by computer. The idea of the CAD system is that people from the dispatch centre are able to view and understand the status of all the units being dispatched and provides tools and mechanisms for monitoring the dispatcher so calls can be handled more efficiently. The system consists of several modules that provide services at multiple levels in a dispatch centre and in the field of public safety. These services include the following; •Call input, dispatching, status maintenance

Handling incident details and locations
Field unit status and tracking
Call resolution and disposition
It also include interfaces that permits the software to...
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