I could think that 811,812,903,911,912 & 913 can use DDs
because of the runtime,distance and the routes they plied.
IMO, I will not put the DDs on 811 or 812. The Woodlands Feeder
and Intratowns should be the ones which deserved the DDs.
811's crowd only from Ave 7/9 to North Pt MRT & I have nv
seen 812's crowd before coz the bus that comes always takes the
crowd at Khatib MRT or even at Chong Pang City.
Therefore, it will be a waste of resources to put such HC buses
on the Yishun Intratown service.
As such, maybe with the DDs on the Woodlands intratown, they can
withdraw the PPPS from Svc 903 and 912.
