Geography is the constraint everything else is built around
A callback list is not a route
Home visits, aged residential care and rural clinic collections arrive one request at a time, generally by phone, generally within the same couple of hours. Handled as they arrive they become a list of callbacks, and the sequencing that would have saved an hour and a half of driving never happens, because nobody ever looked at the day's requests together.
Plan the run, then tell the patient when
Grouping requests into assignable runs and sending the patient an arrival window converts the same volume into a planned route. It also produces a record of what was actually collected where, which is the only honest input to the question of whether a fortnightly run to a small settlement still makes sense at its current frequency.

