New York Laws
Article 29 - Special Stops Required
1171 - Certain Vehicles Must Stop at All Railroad Grade Crossings.

(b) No stop need be made at any such crossing where a police officer
or a traffic-control signal or sign directs traffic to proceed.
(c) Every motor vehicle used in commerce with a gross vehicle weight
rating of greater than ten thousand pounds not subject to the
requirements of subdivision (a) of this section: (i) shall upon
approaching a railroad grade crossing, be driven at a rate of speed
which will permit said motor vehicle to be stopped before reaching the
nearest rail of such crossing, and shall not be driven upon or over such
crossing until due caution has been taken to ascertain that the course
is clear; and (ii) shall stop at such crossing if the course is not
clear.
(d) In addition to the requirements of subdivisions (a) and (c) of
this section, the driver of a commercial vehicle must check
street-railway grade crossings within a business or residence district.
(e) Notwithstanding any other provision of law, every operator of a
commercial motor vehicle shall obey a traffic control device or the
directions of a police officer at a railroad grade crossing.
(f) Every person convicted of a violation of this section shall for a
first conviction thereof be punished by a fine of not more than one
hundred fifty dollars or by imprisonment for not more than fifteen days
or by both such fine and imprisonment; for a conviction of a second
violation, both of which were committed within a period of thirty
months, such person shall be punished by a fine of not more than five
hundred dollars or by imprisonment for not more than forty-five days or
by both such fine and imprisonment; upon a conviction of a third or
subsequent violation, all of which were committed within a period of
thirty months, such person shall be punished by a fine of not more than
seven hundred fifty dollars or by imprisonment for not more than ninety
days or by both such fine and imprisonment.