A motor vehicle for mass transit, built in various capacities and sizes, designed for carrying from 10 to 90 passengers or more on school, local, intercity, or interstate routes. In general, a bus has a long body with passengers sitting on benches or seats, while in local transit service additional passengers may be standing in the aisle. A school bus is used primarily to transport secondary school or younger students from home to school and back. Also called a coach or motor coach, the commercial bus for local transit and longer travel usually operates on a regular schedule and travels a fixed route, and each passenger pays a fare.