Yes, its not rare to experience high forces when the bus
swtiches lane quickly...
And one or more times, on service 190, numerous of buses like
878S (now WLDEP), 1118X (when it went to 'ji siao' s190), some of
the perm buses Habit especially and those which seems not to have
'bang-you' (lock at 60km/h) and even 1224Y, when the bus captain
switches lanes quickly, at Lornie Road exit area as well, the slope
and the added velocity will create a very big sway at the rear,
causing the passengers, mostly at the last row, feel a very strong
sideways jerking force.
Even on normal roads this will occur.
I would say that its the natural design of the bus that creates
such huge forces, as the rear carriage is like a tail, a
crocrodile's tail is very power and so does the bus' 'tail' in such
a sense, sway very hard when the front changes direction.
It is technically so that the rear axle will follow the same
route as the middle axle, so by 'keeping up', the axle is subjected
high forces and so does the force goes up to the cabin, and on a
whole, as the fulcrum is on the middle axle, the rear will become
the 'load'. When u subject high forces to the applied area, the
fulcrum is the turing point, where its the most stable (the middle
axle) and the load is where the turn is similar, if not the same,
as ur applied point. So does the bendy bus work in such a way.
When the bus jack-knives, just like in Harbourfront and many
other places, the feeling that u would have at the rear is how u
would feel in the front, but when at the middle axle, u only feel a
small bump, if none...
