assigned to the same vehicles needs geographic insight at a very high level. The planning job tends to be even more complicated when vehicle capacities and work time are limiting factors and individual time windows for deliveries will make it increasingly harder to optimize last mile delivery without using dedicated route planning software.
Districts are not good for Last Mile Route Planning
Dividing a large area in to districts based on postal codes, may work for many organizations, but will not optimize daily operations. Accepting the fact that the best overall plan for a fleet of vehicles doing last mile deliveries is very much related to minimizing the drive time that vehicles spend driving from one delivery to the next it is easy to comprehend that 2 deliveries close to each other, but in 2 separate districts most likely would occur in less drive time if assigned to the same route.
Thousands of drive time calculations
When the route planning software Logistics Planner is