Sec. 3. On a highway divided into two (2) or more roadways by:
(1) leaving an intervening space that is unimproved and not intended for vehicular travel;
(2) a physical barrier; or
(3) a dividing section constructed to impede vehicular traffic; and
if the school bus is on the opposite side of the traffic barrier, the person who drives an approaching vehicle need not stop and may proceed with due caution for the safety of children boarding or leaving the school bus.