New York Codes, Rules and Regulations
Title 17 - DEPARTMENT OF TRANSPORTATION
Chapter V - New York State Supplement To The National Manual On Uniform Traffic Control Devices For Streets And Highways-2009 Edition
Part 8 - Traffic Control For Railroad And Light Rail Transit Grade Crossings
Chapter 8C - Flashing-light Signals, Gates, And Traffic Control Signals
Section 8C.06 - Four-Quadrant Gate Systems

DELETE Paragraph 04.

INSERT the following paragraph:

Standard:

03A In the normal sequence of operation, unless constant warning time detection or other advanced systems requires otherwise, the flashing-light signals and the lights on the gate arm (in its normal upright position) shall be activated immediately upon detection of approaching rail traffic. The gate arm shall start its downward motion not less than 3 seconds after the flashing-light signals are activated, and shall reach its horizontal position at least 10 seconds before the arrival of the rail traffic. Exit gate arm activation and downward motion shall be based on detection or timing requirements established by an engineering study of the individual site. The gate shall remain in the down position until the rail traffic has cleared the grade crossing.