Sv 53: Downroute from PIE, start 1st trip
at Loyang Ave 0655+hrs towards Bishan.
Sv 53's downroute is abit interesting, because unlike Sv 9, 31
etc, the BC driving this bus has absolutely no place to stop after
he comes down from PIE before starting his downroute trip. So if he
arrives at Loyang Ave 5mins earlier than his downroute, that's it,
his entire trip is early by 5mins or more. If he's late, then the
reverse happens. That's why I say his trip is at 0655hrs+, because
the timing for that downroute can fluctuate +/- 10mins depending on
how fast he exits from PIE. HAHA. This downroute is actually damn
difficult to catch, but easy to spot, cause it's the bus towards
Bishan with only students & no Airport workers. 
tot the first downroute start at 530am at this bus stop?