I'm not professor though, as i find the world of engineering
& business more appealing than academia.
Steps on OH 1418 of course much higher OR more steps compared to O
405.
Because O 405 is a low-floor citybus while OH series of bus-chassi
are the usual high height type more suited for 3rd world markets
with poorer road conditions so they allow more ground clearance
hence higher floor height.
Also OH is more for use with coach rather than citybus bodies,
where the higher floor enables the space underneath to be used as
luggage compartment.
