Editing Traffic warning sign (section)

=== Steep hills ===
[[File:Vienna Convention road sign Aa-2a-V1-1.svg|10% down grade sign (white triangle)|thumb|120px|left]]

Truck drivers will need to pay attention to "Steep grade" warnings (or "Down grade, use lower gear"), sometimes posted with the percent grade (e.g., 12%<!-- leave this percent sign - that's what the signs show, not "12 percent" -->). Steep hills may also feature "Runaway truck escape" or "Emergency stop" areas with corresponding signs. The [[United Kingdom|UK]] has a sign warning of "Adverse [[superelevated turn|camber]]" on a curve.