On 19 Mar, 09:37, "Boltar" wrote:
Outside of a Harry Potter film , have triple deckers ever been used in
the UK (or anywhere else for that matter)? Is there any technical
reason other than height why they couldn't be used - centre of gravity
or passenger evacuation for example?

B2003

D/D tend to be used in cities therefore overhead clearance is a factor
which usually limit the height. where capacity is needed and there is
no constraint of height vehicles tend to become longer. See the
articulated busses used in Iraq and in the EU Dutch inter city coaches
are getting longer.