Siler K F
Health Serv Res. 1979 Summer;14(2):160-76.
A methodology and analysis are presented for evaluating response time characteristics of emergency ambulance systems. The methodology is based on a Monte Carlo simulation technique and a heuristic optimal-seeking technique for locating emergency ambulances under several criteria based on response time distribution. Optimization criteria include minimum mean system response time, minimum system fractile response time and minimum level-loaded response time. The evaluation methodology is applied to the metropolitan area of Los Angeles County. Ambulance response characteristics and loads are discussed in detail. From these results alternative dispatch polices can be evaluated. Complementing the analysis is a presentation of a sensitivity analysis and an analysis of existing ambulance sites. Unique to the methodology is the adaption of the heuristic optimal-seeking technique to include any of the three criteria and the effectiveness of the methodology for analyzing small or large ambulance systems.
本文提出了一种用于评估紧急救护系统响应时间特性的方法和分析。该方法基于蒙特卡罗模拟技术和启发式最优搜索技术，用于根据响应时间分布在多个标准下定位紧急救护车。优化标准包括最小平均系统响应时间、最小系统分位数响应时间和最小水平负载响应时间。该评估方法应用于洛杉矶县的大都市区。详细讨论了救护车的响应特性和负载情况。根据这些结果，可以评估替代调度策略。作为分析的补充，还给出了敏感性分析和现有救护站点分析。该方法的独特之处在于将启发式最优搜索技术应用于包含上述三个标准中的任何一个，以及该方法在分析小型或大型救护系统方面的有效性。
