2.18 Stops

In a solution, a vehicle’s route consists of a sequence of stops, each with a time-of-arrival and time-of-departure. The different stop types are:

1. START: Denotes the start of the route.
2. FINISH: Denotes the end of the route.
3. PICKUP: Denotes an order pickup.
4. DELIVERY: Denotes an order delivery.
5. BREAK: Denotes a break for the vehicle.

A route must begin with a START stop and end with a FINISH stop. These are the only positions in the route where START and FINISH stops can appear. Every PICKUP stop in the route must have a matching DELIVERY stop.