Choice of Speed in Driving Through Curves as a Function of Advisory Speed and Curve Signs

Abstract

Fifty drivers drove through 162 curves on Ohio rural highways. They drove faster and produced more lateral acceleration when (a) a curve sign was present and (b)an advisory speed sign was present than under the opposite conditions. Drivers exceeded advisory speeds of 15 to 35 miles per hour, but did not exceed advisories of 45 and 50.