00A The Grade Crossing Advance Warning (W10-1) sign is required by Section 53-a of the New York State Railroad Law.

00B The TRAIN WHEN FLASHING (NYW5-31) sign (see Sign Drawing SD-W18) may be used to supplement the Grade Crossing Advance Warning (W10-1) sign in advance of railroad crossing locations that are not clear to motorists due to poor sight distance or other conditions.

07A The TRAIN WHEN FLASHING sign shall only be used in advance of a railroad crossing location that is operated under either a “Stop and Proceed” or “Stop and Flag” procedure. Where used, the sign shall be supplemented with two warning beacons aligned vertically no closer than twelve inches above and below the sign. Each beacon shall consist of a circular indication of twelve-inch nominal diameter. The beacons shall display alternately flashing indications in accordance with Chapter 4L.

07B Except as provided in Paragraphs 07C and 07D, where used, the TRAIN WHEN FLASHING (NYW5-31) sign and its accompanying beacons shall be placed below the Grade Crossing Advance Warning (W10-1) sign. The lowest point of this assembly shall meet the requirements of Section 2A.18.

07C If used in an overhead installation of the TRAIN WHEN FLASHING (NYW5-31) sign, the warning beacons may be aligned horizontally no closer than twelve inches to the left and right of the sign.

07D If used in an overhead installation of the Grade Crossing Advance Warning (W10-1) sign and the TRAIN WHEN FLASHING (NYW5-31) sign, the TRAIN WHEN FLASHING sign and beacons should be placed to the right of the Grade Crossing Advance Warning sign.