دانلود رایگان مقاله لاتین برنامه ریزی قطار از سایت الزویر


عنوان فارسی مقاله:

بهینه سازی همکاری برای برنامه ریزی قطار و برنامه ریزی قطار در راه آهن های با سرعت بالا


عنوان انگلیسی مقاله:

Collaborative optimization for train scheduling and train stop planning on high-speed railways


سال انتشار : 2016



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بخشی از مقاله انگلیسی:


2. Problem statements and assumptions 2.1. Problem statements Train stop planning, which is regarded as a key component in providing high-quality transport services, can greatly affect the quality of train schedules and service levels for passengers. In practice, the train stop plan is often pre-designed on the basis of predicted passengers demands and required operational efficiency levels. Mathematically, we can use a binary decision variable as an indicator to represent whether a train is allowed to stop at a station or not. When a set of feasible decision variables are obtained, the stop plan for each train can be specified easily. Next, an example is given to illustrate how the train stop plan affects the quality of the generated schedules. We consider a railway corridor with four stations and three links for simplicity. As shown in Fig. 2(a), three trains, whose origin and destination are nodes 1 and 4, respectively, are taken into account to generate the stop plan. In this figure, the solid dot “” and hollow dot “○” respectively, represent stop and non-stop operations at the current station. Clearly, the specific stop plans for individual trains are different, in which train A is scheduled as a through train with no stops at intermediate stations, while train C is scheduled to stop at each intermediate station. In comparison, train B is only arranged one stop at station 3. In practice, these three trains will jointly provide different services for the various travel demands of passengers (including long-distance and short-distance demands).



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کلمات کلیدی:

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