Figure 17
The illustration shows a diagram of a bus cross-section with a seated human model in the driver’s seat. On the left is a full side view of the bus, showing the driver seated upright at the steering wheel. Two red rectangles create a nested zoom. The first, larger red box highlights the driver’s compartment. The second box zooms further into the driver’s seat area, centering on the chest and steering wheel. In the zoomed view, two body-to-steering measurements are shown as lines encircling the chest/steering area, labeled “a” and “b”. The text annotation at the bottom right: a equals 113.88 millimeters, and b equals 54.57 millimeters. The driver model is in brown and blue, the head shape is neutral, the body posture is upright with arms at sides, and the face is intentionally blurred. The bus interior is shown in gray with structural framing visible, a seat, and a steering wheel.Visualisation of the dummy positioning in the CAD model of the coach, with the seat in the intermediate position. Source(s): Authors’ own creation