Mario Ruthmair

Hi Marco, This request is handled in our ticketing system. You should have already received a notification. Best regards,Mario

Hi Jose, Your two ways of defining a single weighted objective function should be equivalent and the usage of the methods seems to be correct.However, I can spot two differences in your code snippe...

Hi Jose, This is a quite complicated problem but I try to answer at least some of your questions: Quadratic objective functions are allowed, also in multi-objective models, so your second objectiv...

Hi Runqiu, Since you do not know the time interval when the vehicle returns to the depot, you need to leave it open. This means that you model the start of the vehicle and all intermediate stops wi...

Hi John, Sorry, but there are still several open questions that need to be clarified first: Your description to model the arrival and departure time is not a valid mixed integer program. For examp...

Related to this post and this post.

Hi John, Please do not open any more threads that basically deal with the same issue. There are already 3 of them, and I just realized that you already had a long discussion with one of my colleagu...

Hi Dilip, In line 88 you iterate over "Depot", in line 91 it is "depot" (lowercase). Could that be the mistake? Best regards,Mario

Hi John, This is a quite complex setup which is not trivial to model. But there still seems to be something missing: You have an upper bound on the size of a platoon (5), but are the trucks forced ...

Hi John, Ok, now I think I understand the basic VPP, and with factor eta you can control the focus on platooning vs. individual shortest paths. Still, it is not fully clear to me how this basic VPP...