交通运输研究
交通運輸研究
교통운수연구
Transportation Standardization
2015年
2期
42-46,52
,共6页
高速公路网%应急需求%救援期限%覆盖%选址模型
高速公路網%應急需求%救援期限%覆蓋%選阯模型
고속공로망%응급수구%구원기한%복개%선지모형
expressway network%emergency demand%rescue limit%coverage%location model
应急资源布局问题是高速公路应急管理的关键。通过建立数学模型,提出一种优化高速公路网中应急设施点布局方法。首先,通过分析高速公路网中应急需求的布局特点,依据事故发生概率、事故影响范围和路段平均车流量确定在某个交通事故情形下需求点的应急需求。然后,基于需求分析建立应急设施点选址模型。通过救援时间限制确定设施点的覆盖条件,选择救援时间短、物资供给能力强的待选点建立设施点。最后,采用基于拉格朗日松弛的启发式算法对模型进行求解。通过计算实例验证,该布局方法针对高速公路网的应急需求,保障了应急事件救援时间,为高速应急设施点布局提供了新思路,可适用性强。
應急資源佈跼問題是高速公路應急管理的關鍵。通過建立數學模型,提齣一種優化高速公路網中應急設施點佈跼方法。首先,通過分析高速公路網中應急需求的佈跼特點,依據事故髮生概率、事故影響範圍和路段平均車流量確定在某箇交通事故情形下需求點的應急需求。然後,基于需求分析建立應急設施點選阯模型。通過救援時間限製確定設施點的覆蓋條件,選擇救援時間短、物資供給能力彊的待選點建立設施點。最後,採用基于拉格朗日鬆弛的啟髮式算法對模型進行求解。通過計算實例驗證,該佈跼方法針對高速公路網的應急需求,保障瞭應急事件救援時間,為高速應急設施點佈跼提供瞭新思路,可適用性彊。
응급자원포국문제시고속공로응급관리적관건。통과건립수학모형,제출일충우화고속공로망중응급설시점포국방법。수선,통과분석고속공로망중응급수구적포국특점,의거사고발생개솔、사고영향범위화로단평균차류량학정재모개교통사고정형하수구점적응급수구。연후,기우수구분석건립응급설시점선지모형。통과구원시간한제학정설시점적복개조건,선택구원시간단、물자공급능력강적대선점건립설시점。최후,채용기우랍격랑일송이적계발식산법대모형진행구해。통과계산실례험증,해포국방법침대고속공로망적응급수구,보장료응급사건구원시간,위고속응급설시점포국제공료신사로,가괄용성강。
The emergency facility location is a key problem in the field of expressway emergency man?agement. A method of optimizing the emergency facility location on the expressway network by the math?ematical modeling was proposed. Firstly, the layout characteristics of emergency facility demand on the expressway network was analyzed, and the emergency demand under the specific traffic accident was de?termined in terms of the accident probability, the accident influence scope and the average traffic flow volumes. Secondly, the emergency facility location model was established based on the demand analysis. In the emergency facility location model, the facility points′coverage condition was determined by the rescue time limitation, and the facility points were chosen to build emergency facility within the condi?tion of rapid rescue time and sufficient rescue supplies. Finally, the method of the heuristic algorithm based on the Lagrangian Relaxation to solve this model was introduced. The emergency facility location model aimed at emergency demand on the expressway network was verified to be effective and enforce?able by a computational experiment, which guaranteed for the rescue time and offered a new idea for the emergency facility location.