Some airport car parks use technology which enables an automatic check-in. But what exactly does that mean? At our Glasgow Airport car parks, we have invested heavily in cutting edge automatic number plate recognition (ANPR) technology which allows you to check in via your number plate. This service allows for complete convenience and ensures the quickest and easiest check-ins. If you chosen car park has an ANPR/automatic check-in system, in place, simply approach the barrier and the automatic number plate recognition system will read your number plate and allow you into the car park.