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NCJRS Abstract

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NCJ Number: 51877 Find in a Library
Title: MODELS FOR THE LOCATION AND DISPATCH OF EMERGENCY MEDICAL VEHICLES (FROM EMERGENCY MEDICAL SYSTEMS ANALYSIS PAPERS ON THE PLANNING AND EVALUATION OF SERVICES, 1977, BY THOMAS R WILLEMAIN AND RICHARD C LARSON)
Author(s): J D JARVIS
Corporate Author: Lexington Books
United States of America
Date Published: 1977
Page Count: 17
Sponsoring Agency: Lexington Books
New York, NY 10022
Format: Document
Language: English
Country: United States of America
Annotation: GENERAL DESCRIPTIONS ARE GIVEN OF TWO COMPONENTS OF THE HYPERCUBE QUEUING MODEL, AND A SAMPLE CITY IS USED TO ILLUSTRATE THE APPLICATION OF THESE COMPONENTS TO THE DESIGN OF AN AMBULANCE DISPATCH SYSTEM.
Abstract: THE HYPERCUBE MODEL WAS ORIGINALLY DEVELOPED TO AID POLICE PATROL DISPATCH. ITS TWO COMPONENTS ARE A DESCRIPTIVE MODEL, WHICH DETAILS THE OPERATING CHARACTERISTICS OF A SYSTEM WITH LIMITED RESOURCES, AND A LOCATION MODEL, WHICH DETERMINES VEHICLE PLACEMENT TO MINIMIZE AVERAGE RESPONSE TIME. THE APPLICATION OF THE DESCRIPTIVE MODEL TO A SAMPLE CITY SHOWS HOW THE MODEL CAN BE USED TO DETERMINE THE NUMBER OF CALLS GENERATED IN EACH AREA OF THE CITY, TRAVEL TIMES, LOCAL TRAFFIC CHARACTERISTICS AFFECTING TRAVEL TIME, AND AVERAGE SERVICE TIMES FOR EACH TYPE OF CALL (EMERGENCY MEASURES AT THE SCENE, TRAVEL TO HOSPITAL, TRANSFER TIME AT HOSPITAL). SAMPLE DATA ARE TABULATED. THE LOCATION MODEL IS THEN USED TO DETERMINE OPTIMUM PLACEMENT OF AMBULANCES. BOTH MODELS ARE THEN USED TO ASSESS THE VALUE OF A MOBILE CORONARY CARE UNIT. CLINICAL DATA IS USED TO CALCULATE THE RISK OF DEATH FROM VENTRICULAR FIBRILLATION BEFORE REACHING A HOSPITAL. IT IS FOUND THAT SUBSTITUTING A MOBILE CORONARY CARE UNIT FOR ONE OF THE SYSTEM AMBULANCES SIGNIFICANTLY INCREASES RESPONSE TIME FOR THE REMAINING AMBULANCES, BUT SIGNIFICANTLY DECREASES TIME AT RISK FOR THE HEART ATTACK VICTIM. THE PLANNING ISSUES TO BE CONSIDERED IN CHOOSING AN EMERGENCY SERVICE SYSTEM ARE DISCUSSED. IT IS NOTED THAT THE DATA PRESENTED WERE COMPUTER-GENERATED AT A COST OF ABOUT $20. THE MAJOR EXPENSE IN USING SUCH MODELS IS THE COST OF OBTAINING LOCAL INFORMATION. NOTES AND REFERENCES ARE APPENDED. (GLR)
Index Term(s): Allocution; Dispatching; Emergency procedures; Emergency vehicles; Fire departments; First aid; Mathematical modeling; Medical and dental services; Needs assessment; Police response time; Systems analysis
To cite this abstract, use the following link:
http://www.ncjrs.gov/App/publications/abstract.aspx?ID=51877

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