N.Y. Comp. Codes R. & Regs. tit. 17 § 2D.104
Standard:
01 The Snowmobile Route (NYM7-1) sign (see Sign Drawing SD-G14) shall be used on highways where snowmobiles are permitted to use the roadway, shoulder, or inside bank by official designation, in accordance with Section 25.05 of the Parks, Recreation and Historic Preservation Law.
Support:
02 New York State law provides four types of permitted highway use for snowmobiles:
Operation of snowmobiles on highways customarily unplowed and unused for vehicular travel during winter months.
Operation of snowmobiles on shoulders and inside banks of plowed highways.
Operation of snowmobiles on roadways of plowed highways where the shoulder, inside bank, and outside bank are determined unusable.
Operation of snowmobiles on sections of highways, not exceeding 1,500 feet in length, to allow access to areas or trails that are otherwise unreachable.
Guidance:
03 Snowmobile Route signs should be displayed on a seasonal basis (see Section 2A.03 ).
Option:
04 Although Snowmobile Route signs ordinarily need not be used where snowmobiles are permitted by statute on the outside bank, the signs may be desirable in some instances for guidance continuity.
Standard:
05 All auxiliary signs supplementing the Snowmobile Route sign shall have white legends and green backgrounds.
Guidance:
06 Snowmobile Route signs should be used in combinations and assemblies similar to other route signs, except that Junction assemblies should not be used, and Advance Route Turn assemblies are normally unnecessary.
07 Snowmobile Route signs should be supplemented by the BEGIN (M4-14) auxiliary sign (see Section 2D.23 ) at the beginning of a route and the END (M4-6) auxiliary sign (see Section 2D.22 ) at the end of a route.
Support:
08 Figures 2D-103 and 2D-104 show examples of signing for snowmobile routes.
Option:
09 A Snowmobile Route sign supplemented by a M6-4 Directional Arrow auxiliary sign may be used on a highway to identify a snowmobile trail crossing.
Guidance:
10 Snowmobile route sign assemblies should be longitudinally located to clearly mark the permitted travel path. They should be placed in advance of and beyond route turns (in directional and confirming assemblies), at intersections with other snowmobile routes, and at intermediate locations, as necessary. The distance between successive signs along a route should be no more than 3000 feet. On unplowed highways, Snowmobile Route sign assemblies should be laterally placed three feet to the right of the edge of roadway or shoulder.
11 Where snowmobile operation is permitted on the shoulder and inside bank of a plowed highway, Snowmobile Route sign assemblies should be placed approximately 3 feet to the right of the crest of the snow bank. Where snowmobile operation is permitted on the roadway of a plowed highway, Snowmobile Route sign assemblies should be placed approximately three feet to the right of the roadway edge.
12 Signs used where operation is restricted to the outside bank should be placed a suitable distance to the right of the snow bank crest near the highway right-of-way line. Snowmobile Route sign assemblies should be at least seven feet above the ground surface.
N.Y. Comp. Codes R. & Regs. Tit. 17 § 2D.104