What rules make the curb non-regulation? What is a SS car park?
Hmm, your wife drives into a stationary object in private carpark. Don't like your chances.
OK, Rod; SS is shopping centre, it's a public place, and there are "regulations" for curb types and dimensions. Main Roads WA have them well set out in the spec., available on line. Additionally, Councils apply Main Roads' specs in their designs and recommendations. Local Govt Guidelines for sub-divisional Developments also includes detailed specs for Curbs, including in car parking facilities.
In my wife's particular case, it was simply one section of a curb, which was significantly higher than all of the above recommend and this was due to the fact that a storm-water grate had been installed and to ensure the water ran into it the surrounding bitumen paving had been lowered, thus presenting a higher curb profile that was not particularly noticeable until you got out of the car and inspected it.
The rest of that same curb was of the normal ('specified', or standard height). Now these car parks are usually frequented by women and this sort of technicality is not ordinarily in their mind set, especially when they are there shopping for the family.
SS car parks are built to accommodate cars, in the main, and my wife's is not an abnormally low slung vehicle. Storm Water treatments, on the other hand, by their very nature require a 'drainage' approach, which usually involves placing a wheel/tyeare barrier prior to the curb, or by placing the storm water grate further forward, enabling the bitumen to be graded back up, so that the required, dimension of the curb is maintained.
In light of the above, I believe that a hazard has been inadvertently created where it could, and should have, been avoided.