From my observations, platform treatment at the smaller unstaffed stations has improved considerably in the last ten or so years. Surprising to see Melksham hadn't been treated.
As an example Radley station had been cleared of snow by 08:30 on Friday.
There was a
GWR▸ livered vehicle in the car park that was similiar to the vehicle often parked at Oxford so I assume the workers had come from there.