What is the maximum speed permitted for hy-rail vehicles with a gross vehicle weight of 15,000 lbs or under?

The maximum speed permitted for hy-rail vehicles with a gross vehicle weight of 15,000 lbs or under is 45 mph. This speed regulation is in place to ensure safety while operating on or near rail tracks, as hy-rail vehicles can transition between roadway and railway environments.

A speed limit of 45 mph strikes a balance that allows for efficient operation while minimizing risks associated with the potential hazards of rail traffic. Distinct from heavier vehicles, this allowance recognizes the versatility and structural design of lighter hy-rail vehicles that are suited for navigating both roadways and railroad tracks.

Other speed limits, such as 25 mph, 35 mph, and 55 mph, either limit operational efficiency or exceed safety considerations for the vehicle weight category specified. Therefore, 45 mph is the appropriate maximum speed for these lighter hy-rail vehicles.