RE: RNS22 Apr 2024 20:40
@IsleworthSpy "I posted on here a while back that RM said that delivery size would reduce because of the increase in call rate. Thereby increasing the number of routes. Not so, it would seem."
There's more than one thing in play here. Yes, we can expect call rates to increase, but only on delivery days for each route. If each route gets delivered only every other day then the call rate will increase, but only by between 20% to 40% (I've quickly put some numbers together to clarify my thinking further down). Unless the number of deliveries increases significantly, because each delivery only goes out only 3 days a week instead of six, the suggestion of " a net reduction in daily delivery routes of 7,000-9,000." does not seem unreasonable. I am certain that the people building the proposal did far more detailed modelling than I've done.
Call rate variation - if on Monday and Tuesday you hit 40% of your addresses then, theoretically in a worst case scenario where every Tuesday address didn't get a letter Monday, you'd have an 80% call rate, increased by 40%. Many addresses receive mail regularly and many addresses receive very little, so I'd probably expect an increase of around 25%. On your busy days you start at a higher call rate (could be 60%-70%), which also makes it more likely that letters on day 2 will be addressed to houses that already have mail waiting.
If an average delivery has 600 addresses and takes around 5 hours at a 65% call rate, an increase to 80% is only an extra 90 addresses. These are addresses that the postie would have walked or driven past on any given day, so it's only a driveway and letterbox. If half of these extra calls required a door knock, you're adding maybe an hour maximum. It gets more complicated at lower/higher call rates where the impact would be more/less significant respectively. Either way, this would very loosely suggest that for every 5 deliveries you'd need to add one, but only half of the resulting total are delivered to on any given day.
There would be an increase in parcel deliveries because they'd still need to find a way to deliver any first class for the deliveries that are not going out on any given day, but those volumes are relatively small so not a huge impact.
Now I remember why I called myself Talk2Much :)