1. To load luggage: A bus usually carries more than 40 people, and there is a lot of luggage, so a larger luggage space is needed. Therefore, the lower level is mainly used to store luggage, and the upper level is used to carry passengers.
2. To provide comfort: The space inside the car should be spacious enough to make passengers feel comfortable.
3. To meet the requirements of the body structure: When designing, the height of the body of a general bus company is relatively high. For example, the body structure of a 12-meter bus is generally designed in three levels, requiring a 13-cubic-meter luggage box, and the standing height inside the car needs to be more than 190. In addition, the height of the body is also limited by the width of the vehicle, which does not exceed 2.55 meters. Therefore, today's buses are generally designed to be relatively high. The height of the body is generally around 3.5 meters, and with air conditioning, the height of the car is close to 4 meters. The body structure is high, and the risk factor is relatively high, which is prone to accidents such as rollovers. However, this design has been recognized in operations, and no new designs have appeared.
The higher the bus design, the greater the risk factor. This is because the bottom of the vehicle is a luggage compartment. In order not to affect the arrangement of the seats, the frame structure is relatively high. If the design is too low, it will affect the passengers' standing and walking. Therefore, the design height of the bus is generally above 3.5 meters.
The design height of the bus is also related to the body structure. If the body structure is low, more space is needed to place the luggage, which will affect the comfort and safety of the passengers. Therefore, the design height of the bus is relatively high, generally two layers, the lower layer is used to store luggage, and the upper layer is used to carry passengers.
In short, the design height of the bus is based on comfort and safety considerations. Although the body structure is high and prone to accidents such as rollover, this design has been recognized in operation. If you still have questions about this, it is recommended to consult the car manufacturer.
