Arkansas Code Title 27. Transportation § 27-51-702. Approaching railroad grade crossing

(A) A clearly visible electric or mechanical signal device gives warning of the immediate approach of a railroad train or other on-track equipment;

(B) A crossing gate is lowered or a human flagger gives or continues to give a signal of the approach or passage of a railroad train or other on-track equipment;

(C) A railroad train or other on-track equipment approaching within approximately one thousand five hundred feet (1,500′) of the highway crossing emits a signal audible from such distance and the railroad train or other on-track equipment, by reason of the speed or nearness to the crossing of the railroad train or other on-track equipment, is an immediate hazard; and

(D) An approaching railroad train or other on-track equipment is plainly visible and is in hazardous proximity to the crossing.