Hi Riiga, thanks for your reply. I actualy don't see the difference between the two? maxweight is the easiest and most common way to describe restrictions for vehicle weight, allowing all others. Using conditional 'legal access rights' is not wrong but makes it much more difficult for all kinds of Apps for making routing choices, because the syntax is rarely consistent enough. If you  have a problem with it motor_vehicle:conditional would then fit better in my opinion . Kind regards, Joris