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Vehicle Routing with Time Windows Integrating Cplex Constraint Programming With Python Tools. Martin Shell JumpStart Decision Sciences martin@martinshell.com. Overview . Single Depot Multi Vehicle Routing Problem with Time Windows Fleet of Identical Trucks
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Vehicle Routing with Time WindowsIntegrating Cplex Constraint Programming With Python Tools Martin Shell JumpStart Decision Sciences martin@martinshell.com
Overview • Single Depot Multi Vehicle Routing Problem with Time Windows • Fleet of Identical Trucks • Respect Time Windows for Deliveries, Weight and Volume Constraints • Multi-Objective Programming • First Solve to Minimize Number of Trucks Used • Second – Fix Number of Trucks to Minimum and Optimize on Total Travel Time Demo Shows Comparison of Routes and Costs Resulting from Turning Time Windows for Delivery On or Off
Sample Data Orders Locations Open and Close Times are in minutes after midnight Truck Capacity 3400 cu ft, 34000 lb.
Solution Map Display 6 Trucks Used Total Travel Time 77:11
Results Without Time Windows 4 Trucks Used Travel Time 51:02