If you had read properly, the 55 people scenairo was a
if (I suppose you don't need me to explain this
word), and was done to show how inefficient double deckers are when
there is a full load, the purpose is to show the flow, for a full
bendy would have more choices to take when it comes to
alighting.
In any bus, passengers would move in if there is a huge
space left by those who have alighted, and if they don't, prompting
from the drivers will encourage them to do so. On a bendy, the
alighting passengers take lesser time to alight, and therefore
whoever's supposed to move further in to the empty
spaces are able to move in at an earlier time
(lets say its time a) as compared to a
double deck, and consequently, whoever's boarding can board earlier
(lets say its time b) than if it was a
DD.
On a double deck, because the alighting passengers who are the
last to alight (usually) come from the upper deck, and that they
take longer to alight, people who want to move in or upstrairs can
only do so later (lets say its time c), which
means people who want to board can only board later (lets say its
time d)
Here a<c and b<d.
And all this is before considering the fact that people may not
move upstrairs because they are alighting in a few stops.
If there weren't a lot of people alighting from the upper deck
of those buses at CCK, there wouldn't be a jam and I wouldn't
mention it. But there is, so I think it is still better for you to
go there and see for yourself. Yes DDs may have the front doors
available for alighting at interchanges, but it doesn't really
speed things up by a lot, because it is still one line from the
upper deck to the lower deck, and having to walk from the stairs to
the front door takes a slightly longer time. And thanks for
pointing out, bendies also have an extra set of doors for alighting
at the interchanges.
you are basing on the fact IF there is full alighting of the 55
people on the upper deck with significant boarding activities as
well...how many bus stops have such situation whereby all 55 paxes
will alight at the same stop?
the example given by you at NP/Sim bus stops are out of the
scenarios right now...
further based on the actual number of paxes alighting, the dwell
time at bus stop wont be 100% more for DDs.. that is a fact...
and back to your "a<c and b<d.",
this is technically
correct, but i have also pointed that the no of DD that can stop at
a bus stop compare to a bendy...so u need to take into
consideration that as well (and for bus stops with no significant
boarding/alighting activities), so if 3 DD pull into a bus
stop and pick up /alight 5 paxes and each bus stop for 20 sec, so
15 paxes were clear from the bus stop in 20 sec.. but if 3
bendies go into the bus stop and pick up/alight 5 paxes and each
bus stop for 20 sec, the last bendy will only leave the bus stop 40
sec later (thus holding up traffic on main road for 20 sec).... pls
do consider this fact as well...
as for the CCK situation, you are saying that all the DD are
full when arriving at CCK interchange? how can it be? tot those
bendies keep saying that the DD wont have much ppl going up stair
when travelling short distance? now you are painting a picture that
all DDs are fully loaded at the upper deck when reaching CCK, thus
causing all the delay.
