I am going to be in Iceland for a few days and wanted to get some up-to-date information on the roads. I've seen the http://www.road.is/ site, however this doesn't give any details regarding when or why each section of road is "impassable". I also don't know how this differs from "No passage" according to the map key.
Secondly, I would like to know where to buy an OS map equivalent showing roads and walking paths. Most of the ones I have found are 1:200,000 or 1:100,000. Can anyone offer some good options, ideally with English information.