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1、问题简介车辆路径问题（VRP）是一组的最低成本路由设计，起始和终止在一个中心仓库，一个车队，为一-组与已知的皮卡和交付需求和时间窗约束的客户。ZPoenVEjg1FileMewZoomToohHdpnbTruck=0,%numberoftrucksnborder=0,capacityTruck=(),%truckcapacity%numberofordersTRUCKORDER=[l,nbTruck],=[l,nbOrder],foralliinTRUCK(sourceTruck_{i}=-i,sinkTruck_{i}=-(i+nbTruck)),%
2、originoftrucki%destinationoftruckidepot=-1,%onedepotSOURCE={foralliinTRUCKsourceTruck_{i}}z%originsSINK={foralliinTRUCKsinkTruck_{i}},%destinationsSOURCEORDER=ORDERcupSOURCE,ORDERSINK=ORDERcupSINK,SOURCEORDERSINK=ORDERcupSOURCEcupSINK,foralliinSOURCEORDERSINK(idOrder
3、_{i}::0,%explicitdeclarationxOrder_{i}yOrder_{i}demandOrder_{i}wlOrder_{i}w20rder_{i}::0,%abscissa::0,%ordinate::0,%demand::0,%lowerboundoftimewindow::0,%upperboundoftimewindowserviceTimeOrder_{i}::0,%servicetimeidxPickupOrder_{i}::0,%indextopick-uporderidxDelivrOrder_{i}::0,%inde
4、xtodeliveryorderTimeWinOrder_{i}=[wlOrder_{i},w2Order_{i}],%timewindowloadOrder_{i}in[0,capacityTruck],%truckloadatorderitruckOrder_{i}inTRUCK,%truckforanorderTimeOrder_{i}=[tlOrder_{i}zt20rder_{i}],%worktimefromitonextTimeOrder_{i}subsetTimeWinOrder_{depot},),idOrderJi}xOrder_
5、{i}yOrder_{i}demandOrder_{i}=(L=(),=(L=0,foralliin{depot}cupORDER(%inputfordepot&orderswlOrder_{i}=(),w20rder_{i}=(),TimeWindowOrder_{i}=[wlOrder_{i},w2Order_{i}]/serviceTimeOrder_{i}=(),idxPickupOrder_{i}=(),idxDelivrOrder_{i}=(),),idOrderJi}xOrder_{i}yOrder_{i}demandOrder_{
6、i}=idOrder_{depot},=xOrder_{depot},=yOrder_{depot},=demandOrder_{depot}‘foralliinSOURCEcupSINK(%sameorigins&destinationsTimeWinOrder_{i}serviceTimeOrder_{i}idxPickupOrder_{i}=0,idxDelivrOrder_{i}=0,=TimeWinOrder_{depot},=serviceTimeOrder_{depot},PICKUPORDER={foralliinORDER(d
7、emandOrder_{i}>0?i:0)}setminus0,foralli,jinSOURCEORDERSINK(%distancematrixdOrderOrder_{i,j}=lfloorsqrt{{xOrder_{i}-xOrder_{j}}A{2}+{yOrder_{i}-yOrder_{j}}A{2}}+0.5rfloor,%timematrixtOrderOrder_{i,j}=dOrderOrder_{ij}+serviceTimeOrder_{i}/),foralliinTRUCK(OrderTruck_{i}sub
8、setORDER,%setofordersoftruckiSour
