Are you expecting direct services to Orchard and Shenton Way
from every estate like in the 70's, with massive duplication along
the roads to these popular areas?
How do you expect passengers to make transfers if the buses have
to end up calling at interchanges anyway? Have another massive
roadside terminal like MacPherson Estate's defunct bus terminal? It
might make more sense to have the buses ending at the transfer hub
eventually. Not every boarding and alighting segments are matched,
nor is the demand of 2 sides of an interchange of a long route
always similar. Resources will not be optimised without the
hub-and-spoke system.
the model i envision is something like hk's. there're still major
interchanges where majority of bus routes in the region terminate.
however, some routes can be better channelled to
neighbourhoods.
take the example of pasir ris. routes 5 and 6 can be extended to
a new sub-terminal at elias, taking up the area of a MSCP (i
hesitate to term them roadside terminals). this way it provides a
direct link that supplements interchanges. at night the buses will
still be parked at the interchange, of course.