When we determine parking is going to be allowed on the landscape there are actions that will be taken to help protect the campus property. One method is to actually place turf mats on top of the irrigation valve boxes so that the weight of the vehicles does not break the irrigation mainline. Other steps that I use entail roping off areas to prevent vehicles from parking under the drip lines of our trees and shutting down irrigation applications. This is done to firm up the landscape to protect the grades and prevent "rutting" from heavy vehicles.
Parking on landscape is pretty difficult no matter what steps you take but what you see above is a result of the use of the protection matts. Unfortunately the mats are black and with the high temperatures we had paired with relatively little cloud cover, the mats became extremely hot. There is a pretty good chance this turf will actually come back since we only had these locations covered for about eight hours and then water was applied.