The interrelations between construction processes and logistics as well as the large variability of logistics
in outfitting processes and of outfitting processes itself make logistic planning a highly complex
optimization problem. It is not surprising that a large number of possible solutions exists for several logistic
functions, e.g. delivery, storage, transport of material. Optimizing only partial aspects might be counterproductive,
if the improvement for one special problem or situation has unfavourable influences on
other tasks. For example, the arrangement of an additional unloading area might reduce waiting time for
delivery vehicles on a construction site, but may require an additional crane, and thus cause additional
costs. Or if material storage shall be very close to the workspace, multible rearrangement activities might
be required. Such conflicts of interest are not unusual in logistics. They result in problems of multidimensional
optimization. (Voigtmann et al, 2008).
To analyze such complex systems, that are driven by the working processes, by logistics activities on
construction sites and by their interferences and influences, simulation is a suitable tool (Verein
Deutscher Ingenieure, 1993).
The interrelations between construction processes and logistics as well as the large variability of logisticsin outfitting processes and of outfitting processes itself make logistic planning a highly complexoptimization problem. It is not surprising that a large number of possible solutions exists for several logisticfunctions, e.g. delivery, storage, transport of material. Optimizing only partial aspects might be counterproductive,if the improvement for one special problem or situation has unfavourable influences onother tasks. For example, the arrangement of an additional unloading area might reduce waiting time fordelivery vehicles on a construction site, but may require an additional crane, and thus cause additionalcosts. Or if material storage shall be very close to the workspace, multible rearrangement activities mightbe required. Such conflicts of interest are not unusual in logistics. They result in problems of multidimensionaloptimization. (Voigtmann et al, 2008).To analyze such complex systems, that are driven by the working processes, by logistics activities onconstruction sites and by their interferences and influences, simulation is a suitable tool (VereinDeutscher Ingenieure, 1993).
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