On 19/09/10 17:49, Neil Williams wrote:

I'm not sure how it works, but there is. On some designs the
handbrake being released causes the door to close, while on others it
seems that if the doors don't close properly, the handbrake won't
release.

Hmmm, I'm not convinced that the former design doesn't *increase* the
risk of a passenger being dragged along by the bus... (It may mitigate
other risks, of course, such as people falling out of the bus.)

-roy