I can confirm that you can see some of these marks on road signs in the netherlands.
There is one just before a hospital for example.
Just adding it for the record.
Originally posted by chuggers22
reply to post by Carrierwave1
I know it may be hard to believe, but yes replacing stolen and worn out signs was one of my jobs. Someone has to dig the ditches...right? BTW, we hadn't started using the Diamond reflective signs yet we were still using type II. Maybe that makes a difference.