316.152  Turning on curve or crest of grade prohibited.--No vehicle shall be turned so as to proceed in the opposite direction upon any curve, or upon the approach to, or near, the crest of a grade, where such vehicle cannot be seen by the driver of any other vehicle approaching from either direction within 500 feet. A violation of this section is a noncriminal traffic infraction, punishable as a moving violation as provided in chapter 318.