The driver of a vehicle intending to turn to the left within an intersection or into an alley, private road or driveway shall yield the right-of-way to any vehicle approaching from the opposite direction which is so close as to constitute an immediate hazard, but the driver, having so yielded, may proceed as soon as a safe interval occurs.
(625 ILCS 5/11-902) (2000 Code, § 71.061) Penalty, see § 71.999