The European speedcam categories most important

Well,
as this is an international forum I expose my problem about the speedcam. I live in Italy and I customized categories of speedcam with those that there are in Italy, but I would like to add some European categories that are not in Italy, or that are not similar to an Italian category. I looked on POI PLAZA and saw that there are too many categories, some can attributable to the icons of Italian categories, but for others I have to make icons, as for "Distance Camera".
I would like a list with the most important POI categories to be included in my "Speedcam" to alert, (categories that may lead to fines), that I can find in the various European countries.

Another problem is that, I tried to download "tunnel speedcam" of Austria and France but as there the number of type is 3, (red light camera?).
I can always change the type number, from 3 to 1, but who determines the number of the type to be assigned to each category?
The NNG, POI PLAZA, or each can have his way?
It is clear that I having only 32 categories and I have to give some of them the numbers of type non-original.......

thanks.