Amultidepot VRP is solved in the context of total urban traffic equilibrium.Under the total traffic equilibrium, themultidepot VRP\nis changed to GDAP (the problem of Grouping Customers + Estimating OD Traffic + Assigning traffic) and bilevel programming\nis used to model the problem, where the upper model determines the customers that each truck visits and adds the trucks� trips\nto the initial OD (Origin/Destination) trips, and the lower model assigns the OD trips to road network. Feedback between upper\nmodel and lower model is iterated through OD trips; thus total traffic equilibrium can be simulated.
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