Can passengers stand in the aisle while a bus is in motion?

Intercity buses and motorcoaches generally prohibit standing passengers while in motion because passenger compartments are designed for seated travel and the speeds involved make sudden stops dangerous for standing riders. Transit buses in cities and short-route services often permit standing — they are designed for it, with grab bars and stanchions, and operate at lower speeds. School buses generally prohibit standing. Drivers should know the rule for their specific service and enforce it. A standing passenger in a sudden stop or crash is at much higher injury risk than a seated belted passenger.