IH&T run one of the better stories I've seen about satnavs directing HGVs down little village roads.

I recently added maxweight and maxheight to the things I note down when I see them. It might be nice to get these renderered. If we just added them to the default rendering, it'd be too cluttered. Maybe the solution is something like free-map.org.uk's approach to photographs, by overlaying little triangle roadsigns near each restriction, and two boxes wherein you can type the weight and height of your vehicle such that it shows only relevant restrictions.

(i wonder if there is a expected national maximum vehicle height - ie the limit of how tall bridges have to be before they're not signed as a lowbridge?)