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A Base Study on the Construction of Optimal Operating Systems using the Optimal Traffic Intensity in the Container Terminal  

Lee, Sang-Yong (부산대학교 도시공학과)
Jung, Hun-Young (부산대학교 도시공학과)
Publication Information
Journal of Korean Society of Transportation / v.23, no.3, 2005 , pp. 85-94 More about this Journal
Abstract
The scale and operating conditions of logistical systems very sensitively varies according to the variation of traffic intensity that is affected by the arrival characteristics of trucks and the attributes of loading/unloading services in logistics facilities. More exactly, logistics costs are incurred according to variations of traffic intensity. which are intimately linked with in a given time period. Also. although traffic intensity changes minutely, the range of cost variation is wide. Nevertheless, with regard to operating logistics systems, the existing studies make no attempt to analyze these factors. Therefore, it was the purpose of this study to determine the optimal traffic intensity to minimize excessive logistics costs resulting from the generation of unnecessary costs such as waiting costs and overcosts in operating a facility. For the purposes of this analysis. a determination model of optimal traffic intensity was constructed according to queuing theory. The inflow/outflow conditions of trucks and the terminal operational conditions were collected from an off-dock container terminal in Busan. On the basis of this data. the optimal traffic intensity that could off-set excessive waiting and operating costs was determined quantitatively. Also. using the optimal traffic intensity to be determined. we consider the improvements of operating system in the logistics facilities.
Keywords
서비스율;도착율;최적운영시스템;대기비용;운영비용;도착시각제어;
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