2010 Pennsylvania Code
Title 75 - VEHICLES
Chapter 37 - Miscellaneous Provisions
3713 - Railroad trains not to block crossings.

     § 3713.  Railroad trains not to block crossings.
        No person or government agency shall operate any train in
     such a manner as to prevent vehicular use of any roadway for a
     period of time in excess of five consecutive minutes except
     under any of the following circumstances:
            (1)  When necessary to comply with signals affecting the
        safety of the movement of trains.
            (2)  When necessary to avoid striking any object or
        person on the track.
            (3)  When the train is disabled.
            (4)  When the train is in motion except while engaged in
        switching operations.
            (5)  When there is no vehicular traffic waiting to use
        the crossings.
            (6)  When necessary to comply with a governmental safety
        regulation.