is the demand for such services there?
Well it really depends on the fares i guess.
502 can be pretty full especially on weekends even though it
cost more than a train ride because it saves some time between
jurong east to orchard.
If such limited-stops service can indeed save time compared to a
normal trunk route, and yet costs no more than a train ride, then
there should be demand. Who dosent want a faster bus ride that
dosent cost as much as a "express" service?