Download Dynamic Fleet Management for International Truck by Steffen Schorpp PDF

By Steffen Schorpp

Recent advancements in IC applied sciences have facilitated the sensible software of dynamic motor vehicle routing structures. whereas lots of the to be had dynamic ways care for city zone environments, the point of interest of this thesis is determined to huge quarter dynamic freight transportation protecting the complete ecu continent. because of its dynamic making plans part, the occasional transportation mode – self sustaining of predefined line networks – is taken into account. the writer develops and evaluates new dynamic making plans ways and accommodates all vital real-life regulations, comparable to rules on riding and dealing hours (EC 561). Numerical exams are conducted with a five-week real-life facts set from a world freight forwarder. the consequences point out that major advancements, in particular by way of empty kilometers and repair caliber, could be achieved.

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Additional info for Dynamic Fleet Management for International Truck Transportation: Focusing on Occasional Transportation Tasks

Example text

Travel time). Afterwards, the considered standard problem is specified: capacitated/uncapacitated (column four), actual problem (column five), time window characteristic hard/soft - if time windows are available at all (column six), and geographical extension (column seven). An “X” in column eight indicates that en route diversion is allowed, and column nine gives information about the employed dynamic test data sets. , 2009 X (60%) travel time travel time capacitated cap. VRPTW TW constr. hard local dynamic test data Solomon, 1987 cap.

For practical reasons, this option seems to be hardly applicable. In the second option (extensive simultaneity), execution and computation run simultaneously. The algorithm is allowed to change all decisions which are not due within a short anticipation horizon. A third approach specifies a larger part of the “plan in execution”, which is not allowed to be changed (prioritization of execution), avoiding stress of frequent re-scheduling, but also reducing the potential solution space. 6. Scope of Adjustment The scope describes how the algorithm is allowed to change decisions which become effective in the future.

The general objective is to minimize an equally weighted sum of travel time, lateness and overtime.

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