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首页> 美国卫生研究院文献>AMIA Annual Symposium Proceedings >Optimal location for a helicopter in a rural trauma system: prediction using discrete-event computer simulation.
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Optimal location for a helicopter in a rural trauma system: prediction using discrete-event computer simulation.

机译：农村创伤系统中直升机的最佳位置：使用离散事件计算机模拟的预测。

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摘要

A discrete-event computer simulation was developed using the C programming language to determine the optimal base location for a trauma system helicopter in Maine, a rural area with unevenly distributed population. Ambulance run reports from a one-year period provided input data on the times and places where major injuries occurred. Data from a statewide trauma registry were used to estimate the percentage of cases which would require trauma center care and the locations of functional trauma centers. Climatic data for this region were used to estimate the likelihood that a helicopter could not fly due to bad weather. The incidence of trauma events was modeled as a nonstationary Poisson process, and location of the events by an empirical distribution. For each simulated event, if the injuries were sufficiently severe, if weather permitted flying, if the occurrence were not within 20 miles of a center or outside the range of the helicopter, and if the helicopter were not already in service, then it was used for transportation. 35 simulated years were run for each of 4 proposed locations for the helicopter base. One of the geographically intermediate locations was shown to produce the most frequent utilization of the helicopter. Discrete-event simulation is a potentially useful tool in planning for emergency medical services systems. Further refinements and validation of predictions may lead to wider utilization.
机译：使用C编程语言开发了离散事件计算机仿真，以确定在缅因州（人口分布不均的农村地区）的创伤系统直升机的最佳基地位置。一年的救护车运行报告提供​​了有关重大伤害发生的时间和地点的输入数据。来自全州创伤登记处的数据被用于估计需要创伤中心护理的病例百分比和功能性创伤中心的位置。使用该地区的气候数据来估计直升机由于恶劣天气而无法飞行的可能性。创伤事件的发生率被建模为非平稳的泊松过程，并通过经验分布来确定事件的位置。对于每个模拟事件，如果伤害足够严重，如果天气允许飞行，并且该事件不在距中心20英里范围内或直升机范围之外，并且如果直升机尚未服役，则使用运输。为直升机基地的四个拟议地点分别进行了35年的模拟年。地理位置最中间的位置之一显示出直升机使用最频繁。离散事件模拟对于规划紧急医疗服务系统可能是有用的工具。预测的进一步完善和验证可能会导致更广泛的利用。

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