The AA learner car on Cromwell Road, just of Gloucester Road isn't parking in front of the no-parking-24-hours area because it needs to.
That's the entrance to a block of student houses, which means people who need to learn to drive. In Bristol. Where knowing which keep clear signs you really need to pay attention to is important. These signs are marked "keep clear" in white, but not double yellow lined, so not a concern of Bristol Parking Services unless/until someone needs to leave the facility, in which case it's an obstruction for which you get towed. Knowing the difference between the two is useful, though the tests aren't yet up to date with such subtleties.