Why can’t I use a Slow Moving Vehicle Triangle to mark the end of my driveway?
The Slow Moving Vehicle Emblem (triangle) is only supposed to be used on moving vehicles and is required on any agricultural or construction equipment designed to travel 25 mph or less. Lighting is required on such vehicles at night or any other times when visibility is not clear. If fact, it is illegal to use a Slow Moving Vehicle Emblem on a clearance marker or on stationary objects (V & T Law, section 375 (36) (c)).
Only using the Slow Moving Vehicle Emblem on vehicles actually is part of the same concept used for the MUTCD; signs and markings should be uniform and provide a clear consistent message. When drivers see an orange triangle, they expect a slow moving vehicle. For a driveway, they would expect a yellow delineator. Note that any delineators in the right-of-way must be placed by or with the approval of the agency maintaining the highway.
NYS Governor's Traffic Safety Committee's (GTSC)