Passenger seats are the designated areas in vehicles, such as cars, buses, and airplanes, where individuals sit during travel. These seats are designed for comfort and safety, often equipped with features like seat belts, adjustable headrests, and cushioning. The arrangement and number of seats can vary significantly depending on the type of vehicle and its intended use. In commercial aviation, passenger seats are typically arranged in rows within the cabin of an aircraft. Airlines often offer different classes of seating, such as economy, business, and first class, each providing varying levels of comfort and amenities. The design and layout of these seats are crucial for maximizing space and ensuring passenger safety during flights.