This is fabulous. Basically there's a second blue sign required to explain the first blue sign. Surely part of the criteria for an effective parking is for it to be able to be effectively communicated in practice....Why use 20 words when five will do....
Also it's a super example of how positive and simple language wins hands down compared to complex and negative language. The top negative sign uses works like "Limited", "Prohibited", "No", "Limits", and successfully manages to avoid using the word "Parking". The lower positive sign is the positive invitation to park. Sure there are technicalities here around duration and return for pre 8:30 parking, but a relatively small proportion of the parking day.
The local hospital has changed it's car parking arrangements to reduce the "anxiety" associated with time charge parking. Given thee signs were is a car park used by visiting tourists, that out to be a factor here too.
