You'll see a couple of statistics for today's trains in the public facing area. While I was at the [Melksham] station just after 11 a.m., I took a look at car parking.
Station placesDisabled spot occupied by a taxi collecting someone off the train
Taxi spot unoccupied
One space occupied by someone meeting off a train; one drop off who did not use a space.
Other spaces occupied by a variety of different types of car
Two open works vans and a skip parked up near the gate (not in spaces). Contractors in bright orange spraying (weedkiller?) along the old narrow section of the platform.
Extra temporary spacesFive occupied (4, I noted by Audis and one by a Ford)
One available, which I used for the 5 minutes or so I was there.
I suspect that the 4 Audis is statistically significant - seeing as there's a VW / Audi place just beside the station