A bus is a large vehicle designed to carry multiple passengers along designated routes. It typically has a spacious interior with rows of seats and is commonly used for public transportation in cities. Buses can vary in size and design, including city buses, school buses, and long-distance coaches. Buses operate on fixed schedules and routes, making them an efficient way to travel. They are often powered by diesel or electricity and can accommodate a significant number of people, reducing traffic congestion and environmental impact compared to individual cars. Many cities have integrated bus systems with stops and transfers to connect with other forms of transportation, such as trains and subways.