We have in the law a category “gehandicaptenvoertuigen” disabled_vehicle and subcategory motorized and non_motorized. The above mobility scooter is a part of this group, the hierarchy, also a electric wheelchair and a nonmotorized wheelchair.
This need a good hierarchy tagging.
That you can set a traffic_sign prohibition with one key/value, direct tagging, so that there is no opposite tagging necessary. Be avoided.