Pennsylvania Statutes Title 75 Pa.C.S.A. Vehicles § 3341. Obedience to signal indicating approach of train

(1) A clearly visible electric or mechanical signal device gives warning of the immediate approach of a railroad train.

(2) A crossing gate is lowered or a flagman gives or continues to give a signal of the approach or passage of a railroad train.

(3) A railroad train approaching within approximately 1,500 feet of the highway crossing emits a signal audible from that distance and the railroad train, by reason of its speed or nearness to the crossing, is a hazard.

(4) An approaching railroad train is plainly visible and is in hazardous proximity to the crossing.

(1) No person shall drive any vehicle through, around or under any crossing gate or barrier at a railroad crossing while the gate or barrier is closed.

(2) No person shall start to drive a vehicle through, around or under a gate or barrier at the entrance to a railroad crossing while the gate or barrier is being opened or closed.