What is the top speed limit for motor buses on U.S. or State Highways at night?

The top speed limit for motor buses on U.S. or State Highways at night is indeed 65 mph. This regulation is established to ensure that larger vehicles, which can be more challenging to control, do not exceed a safe speed that could contribute to accidents, especially during the more hazardous conditions present at night, including reduced visibility.

While other speed limits might apply to different vehicle classes or under various conditions, the specific limit of 65 mph for motor buses at night has been set to balance safety and the operational needs of public transport. Buses, which are typically larger and carry more passengers than standard vehicles, must adhere to stricter speed regulations to ensure the safety of their passengers as well as other road users. This limit helps to minimize risks associated with nighttime driving, such as fatigue and decreased reaction times.