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    Please use this identifier to cite or link to this item: http://nccur.lib.nccu.edu.tw/handle/140.119/85568


    Title: 邊境安全檢查之等候模型與計算
    Other Titles: Computing the Waiting Time in a Security Check System
    Authors: 陸行
    Contributors: 應用數學學系
    Keywords: 類生死過程之馬可夫鏈;等候理論;安全檢查;Coxian分佈
    QBD Markov Chain;Queueing;Security Check;Coxian Distribution
    Date: 2012
    Issue Date: 2016-04-19 11:41:53 (UTC+8)
    Abstract: 在機場或國際邊界的安全檢查經常會導致個人,行李,包裹或車輛長時間排隊 等候。一般情況下,因為人(或車輛)不會於固定的時間間隔依序到達,因此要保 證安全等待時間似乎並不那麼容易,更不要說因為安全需要增加必要的檢查造成服 務的過程中更多的不確定性。 這項計畫的目的是構建一個排隊模型,以協助海關人員了解如何設計和管理同 時俱備安全與最高等候時間的排隊環境,例如正常的等待時間不超過 30分鐘。為 了考慮在實踐中的真實情況,如在各種安全階段的檢查,我們用類Coxian分佈服務 時間的排隊模型。雖然類Coxian分佈計算非常複雜,但其估計值比傳統的模型好。 經由這種模型,它既能保持安全級別,又可以舒緩在機場,或國際邊界之安全檢查 點上時間緊張的壓力。這項計畫預期在第一年完成基本模型和它的計算公式;第二 年則根據實務的需要做相對應的參數調整,以期達到實用價值。
    Security access control and security screening ("search") applications in airports or international borders will routinely cause a waiting line by people, baggage, packages or vehicles. Generally, finding out the average security wait time is not as easy as it appears. This is because people (or vehicles) do not arrive at the queue on a precise schedule, not to mention the need for security check which makes the service process more involved. The objective of this proposal is to construct a queueing model to assist the Transportation Security Office understand how to design and manage the security wait environment with customers' satisfaction, e.g. the normal wait time is no more than 30 minutes. To accommodate the seurity conditions in practice, such as check in various security stages, we use a queueing model with service time of semi-Coxian distributions. The semi-Coxian distribution in fact complicates the computation but reflects relatively better estimation than a traditional model. Thus, it is useful both to maintain the security level and to release the tense in the security check points in airports, or international borders. The basic computable model will be built in the first year and further investigation for implementation issues and verification will be conducted in the second year.
    Relation: 計畫編號 NSC 101-2221-E004-002-MY2
    Data Type: report
    Appears in Collections:[應用數學系] 國科會研究計畫

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