I’m currently working through how to reduce vehicles used.
- Capacity isn’t constrained.
- Fixed cost per vehicle is HIGH
- FIXED_COST_PARAM is HIGH
- Maximum time per vehicle is 8 hours
There is enough time to only use 2 vehicles, but it is using 3. The 3rd simply does 1 delivery and heads back to depot.
There are previous discussions around getting the lowest amount of vehicles required, but I don’t think there is a guaranteed solution.
Is there a method to use waiting time cost?
eg. If a vehicle is used it has to sit out the remaining time it has, in this case for the full 8 hours?
This would mean if a vehicle is used for 1 delivery, then it has 7+ hours of wait time.
Anyone have any ideas on this?