3 SDs can serve 270 passengers in 3 different bus services. 2
bendies can only serve 260 passengers with 2 services. Both
examples in a bus stop, obviously the latter is less efficient.
If we were to compare with them operating on the same
service.
Indeed, 3 SDs can serve 10 more passengers than 2 bendies.
But please remember that bus captains are getting more and more
difficult to hire, as less people are willing to take up such jobs
and it will be hard to get foreign talents.
Then deploy double deckers? Again, please remember that there
are anti-dd services which require bendies.
Then if you want to tell me replace all bendies with single
rigids, for example 190,
That is really impractical (How can you expect 50+ buses
operating on ONE PARTICULAR SERVICE?)
IMO, when using double deckers is impossible and you really need
to use bendies, that is probably the only way out.
