Today(6 February, 2015) 169sv at 19:13-19:22hr, I spotted
SMB1440S going around AMK Int for 3 rounds. At first round(19:13),
it left it's parking lot but it doesn't goes to the breth to pick
up passenger but to go back to park after SMB3540Z park. Then the
second round(19:15), the same thing happening again but after a
bendy park, it unable to park. Then third round(19:18), the same
thing again by that time the 169 queue is too long and I don't know
what is the BC doing. Then at (19:21), it manage to park back after
DD(SMB3540Z) was deployed.
Normal... Around 1654hr, aft TIB1107C depart, there were
SMB233E, SMB3007Y, TIB1142A & TIB1229J crowd together at the
lots, then TIB1229J just keep going around to prevent causing
jam...
Starting 1630hr, 169 slots will start to get be close like 190,
2 - 3 mins frequency, which was why 233E which i took aft 1107C,
overtook 1107C at AMK/Bishan Park busstop before turning to Upp
Thomson Rd... End up overtook another 3 buses, 3536L, 5027B &
1225U at Senoko... From 5th bus became 1st bus in the queue, so 5
buses just bunched like that to WRI... 
By the way, there were 2 856 bendies with the 4 169 buses near
Senoko that my 233E just overtook all of them like nothing happened
eventhough all 7 buses were full... 