Why are passengers travelling in double decker bus allowed to stand on the lower deck but not on the upper deck
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Best Answer: I would say that it's not quite any of those reason. My answer relates more to a physics/scientific solution rather than a bus enthusiast one.
The bus will pivot/rock about its suspension. The further above the pivot point, the greater the moment arm. Therefore the slightest jolt or wobble will have a small moment arm on the lower deck, but a higher moment arm and therefore overturning moment on the top deck. If you are standing up your centre of gravity more easily can be moved outside your base ie your feet so you are more likely to fall over. So combine these two things will make it significantly easier for a top-deck standing up person to fall over and injure themselves.
The bus company prevents passengers standing up on the top deck to reduce risk of passenger injury and risk of them getting sued as a result.
The bus will pivot/rock about its suspension. The further above the pivot point, the greater the moment arm. Therefore the slightest jolt or wobble will have a small moment arm on the lower deck, but a higher moment arm and therefore overturning moment on the top deck. If you are standing up your centre of gravity more easily can be moved outside your base ie your feet so you are more likely to fall over. So combine these two things will make it significantly easier for a top-deck standing up person to fall over and injure themselves.
The bus company prevents passengers standing up on the top deck to reduce risk of passenger injury and risk of them getting sued as a result.
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