The Vehicles data should consist of three columns:
A unique identifier of the vehicle.
The total load of the vehicle cannot be over its specified capacity.
The Orders and Depot data should consist of seven columns:
A unique identifier of the order.
Number of unit the customer has ordered.
Earliest time the customer is willing to receive the order. The delivery to the cosutmer will start on or after this time even if it is reached earlier. The time should be in minutes from a reference time which is the open time of the depot. So, the open time of the depot should be 0 and all the time should be given with respect to it. It is user's responsibility to convert the time.
Latest time teh customer is willing to receive the order. The delivery must start on or before this time.
Estimated time to serve the order. It may be proportional to order_unit but the user should put this in. The vehicle must stay this time in that particular order.