(A) Whenever any person driving a vehicle approaches a highway and railroad grade crossing, and a clearly visible and positive signal gives warning of the immediate approach of a railway train or car, it shall be unlawful for the driver of the vehicle to fail to bring the vehicle to a complete stop before traversing such grade crossing.
(B) It shall be the duty of the drivers of the vehicles upon the highway to bring such vehicles to a full stop before reaching any grade, railroad, or crossing, and before crossing the same, to ascertain when such crossing can be made in safety, in the following cases, even when no signal is giving warning:
(1) In the case of vehicles of any kind carrying school children, passengers for hire, explosives, or inflammable liquids; and
(2) In the case of all motor vehicles at every crossing designated by “Stop” signs.
(Prior Code, § 71.02) Penalty, see § 70.999