Resurfacing or a storage compound for other works reducing the number of spaces? Last time I was there Tiverton Parkway had several large car parks and it's hard to imagine them all full, though Google maps shows one as "Permanently Closed" which may explain things.
Weren't there planning problems at Tiverton Parkway - extra car parks laid when the sea wall was closed, and well used, but they were only temporary and had to be closed once the sea wall was open again. Or was I dreaming when I heard that one?