Hi Is there any existing code or constraint for "Nosubtour(S) " for Sub Tour Elimination for a Vehicle Routing Problem in Eclipse. I am working with Eclipse 6.183 version. My objective is to find the set of optimal routes by minimizing the delay or no delay of a VRP model having one depot and 82 nodes/customers/demand points. my constraints are: 1. Demand constraints of each node 2. Truck size constraint/5 types of trucks and infinite no of trucks. 3. nodes having less less than 350km radius from depot should be covered within [1,2]. day..that is 1 day of delay can be considered. data available: 1. distance matrix( dij) : node to node. 2. distance matrix(d0j): depot to node. 3. demand of each node. 4. 5 types of trucks with different capacity but the number of trucks is infinte. 5. nodes having distances less than 350KM should be covered within one day with 1 day delay. objetive:- Find the set of optimal routes so that no of delay is minimized and tota distance travelled is minimum.Also every route will start from depot and end at depot. -- NISHANT RAJ 3rd YEAR UNDERGRADUATE STUDENT DEPARTMENT OF INDUSTRIAL ENGG.& MANAGEMENT IIT KHARAGPUR Phone (+91)-7501320429Received on Thu Jun 16 2011 - 07:35:27 CEST
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