I suspect that it is to do with Health & Safety and long-term liability.
A recessed Bus Stop is being installed outside the local newsagent.
The existing footpath is wide, so no problems regarding location.
The outer two-thirds has been dug and filled four times in the past two months, phone, water, gas and electricity.
The surface is now lifted once more for the actual bus stop, re-routed kerbing and final paving to be done.
The intermediate fills have been finished to a higher standard than many "permanent repairs".
There are two more similar bus stops constructed in the 1/2 mile length, going through the same rigmarole, starting four months back. One is at an existing Bus Stop, the other is a new location.
Although the main physical work including road surfacing, has been completed at those two for about four weeks, they have not got surface markings as being "BUS STOPs", so are already cluttered with parked cars etc.