The City Administrator, in consultation with professional engineers,
is hereby authorized to determine those intersections at which drivers
of vehicles shall not make a right, left or U-turn and shall place
proper signs at such intersections. The making of such turns may be
prohibited between certain hours of any day and permitted at other
hours, in which event the same shall be plainly indicated on the signs
or they may be removed when such turns are permitted.
Whenever authorized signs are erected indicating that no right
or left or U-turn is permitted, no driver of a vehicle shall disobey
the directions of any such sign.
The driver of any vehicle shall not turn such vehicle so as
to proceed in the opposite direction upon any street in a business
district and shall not upon any other street so turn a vehicle unless
such movement can be made in safety and without interfering with other
traffic.