The least bumpy spot on a yellow, single-deck school bus is located in the middle, equidistant from the front and rear axles. This area tends to provide a smoother ride due to its proximity to the bus's center of gravity. Conversely, the bumpiest spot is found at the back of the bus, specifically behind the rear axle. Understanding these dynamics can enhance comfort during travel on school buses. Overall, choosing a seat in the middle can significantly reduce the impact of bumps while riding.