Volvo are just trying to get someone else to provide the infrastructure for self driving. I live in Norway, the poles at the side of the road are not just for

Volvo are just trying to get someone else to provide the infrastructure for self driving. I live in Norway, the poles at the side of the road are not just for the snowploughs, they are very helpful for human beings too. Magnetic nails embedded in the road are not at all useful to humans and are just more stuff to maintain, especially in an environment where simply maintaining centre and edge markings is a difficult and time consuming job.