Oh, that's cool. I guess the reason we don't rely on road marks so much is that they're covered by snow & ice half the year. That plus frost heaving & constan

Oh, that's cool. I guess the reason we don't rely on road marks so much is that they're covered by snow & ice half the year. That plus frost heaving & constant snow plowing & studded tyres are very effective at erasing the road markings.