On Mon, 19 Sep 2016 10:43:42 +0100, Neil Williams
wrote:

On 2016-09-19 09:00:28 +0000, Offramp said:

In another thread that I am unable to find a poster mentioned the
button, once used by the second warm-bodied staff-human on the bus to
open the rear doors.

On a normal bus one is definitely not meant to use the button
positioned over the doors in the middle of the bus to egrete oneself
from the bus in traffic, or anywhere.

But is one allowed to use the rear door button on a roastmaster? Is it
"allowed", and if so, where is it?

If running with a conductor, the door is left open.

Indeed, that's the whole point of the platform attendant.