SBS 8030 L SG http://www.sbstransit.com.sg/download/Svc_Extension_Svc_284M_29062009.pdf284M route is a bit funny, it will mean that residents there will take longer time to reach Clementi Int/MRT station, though benefit those going to NTUC. It's like so near yet so far. Cheers.those who lazy to walk or elderly people will take the bus. But SBST is quite clever of doing this move to introduce Sv 284M.
SBS8033D SG They inverted the routes alr. 284 should ply MRT while 284M should not. This is to cater those ppl working to serve them to the MRT to take MRT to work, since bus is so boring to some people, esp premium svcs