Two-layer vehicle routing optimization method with fuzzy random time window
A vehicle routing, random time technology, applied in instrumentation, data processing applications, forecasting, etc., can solve problems such as vehicle routing optimization with fuzzy random time windows
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[0071] The establishment of the model and its solution are described in detail below.
[0072]Uncertainty factors: Due to the uncertainty of transportation time and service time, transportation cost is often treated as an uncertain variable. Uncertainty in transportation costs consists of two components, uncertainty costs due to uncertain demand and uncertainty penalties due to projected failure to meet demand. In general, it is difficult to accurately determine the transportation cost of a certain distance, because there are too many uncertain factors, such as weather conditions, traffic accidents, vehicle breakdowns, traffic control, and the skills and experience of drivers. In the past, many scholars considered this as a random variable, but now more and more researchers begin to use fuzzy theory to deal with these situations. In large-scale construction projects, accurate statistical data is scarce, so statistical data and driver experience are more suitable for processin...
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