Adverse camber

I saw a road sign the other day warning of an “Adverse Camber” and had to head for the dictionary.  It turns out that it means that the road tilts the same way as the road is turning.  Thus, if you are riding a motorcyle, you have to lean further than usual into the turn.  Normally, roads are designed to tilt the opposite way – i.e. on a right turn the road tilts from left to right – so that you can maintain your speed.  Apparently this is referred to as a “crossfall camber”.

I’m all for expanding my vocabulary, but I’m not sure a dangerous corner is the best place for  developing lexicon.