METHODOLOGIES FOR THE EVALUATION AND IMPROVEMENT OF EMERGENCY MEDICAL SERVICE SYSTEMS. VOLUME III. COMPUTERIZED AMBULANCE LOCATION LOGIC USERS MANUAL: PL/I AND FORTRAN VERSIONS

An efficient and general method of seeking an optimal deployment of emergency medical vehicles, in terms of minimizing the response time, is presented. The method combines a queuing model, an optimum seeking nonlinear algorithm, and simulation. This queuing model describes a system in which the arrival rate is distributed in a Poisson manner, the service time may have any distribution and no waiting occurs because the available providers of services are infinite in number. The search routine is that developed by Hooke and Jeeves. The queuing model is used to estimate a conditional mean response time for the given locations of hospitals and any initial set of locations of the emergency medical vehicles. The probabilities of one, two, etc., emergency medical vehicles being busy, and hence increasing the mean response time, are estimated by simulation. The search routine directs changes in the locations of the emergency medical vehicles with the object of progressively decreasing the mean response time. Portions of this document are not fully legible.

• Supplemental Notes:
  • See also Volume 2, PB-245 550.
• Corporate Authors:

  University of California, Los Angeles

  Division of Operations Research
  Los Angeles, CA  United States  90024

  National Highway Traffic Safety Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Fitzsimmons, J A
• Publication Date: 1975-8

Media Info

• Features: Figures; References; Tables;
• Pagination: 120 p.

Subject/Index Terms

• TRT Terms: Algorithms; Ambulances; Computer programming languages; Computer programs; Disasters and emergency operations; Emergency response time; Emergency vehicles; Evaluation; Hazards and emergency operations; Information processing; Location; Mathematical models; Medical services; Optimization; Planning; Queuing theory; Reaction time; Simulation
• Identifier Terms: FORTRAN (Computer program language)
• Uncontrolled Terms: Models
• Old TRIS Terms: Evaluating; Pl/1 programming language; Queueing theory; Response
• Subject Areas: Highways; Planning and Forecasting; Safety and Human Factors;

Filing Info

• Accession Number: 00093299
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Final Rpt., DOT--HS-801-705
• Contract Numbers: FH-11-6849
• Files: NTIS, TRIS, USDOT
• Created Date: Dec 3 1976 12:00AM