Seen Handal Indah running inter-state city rts? Seen "Causeway
Link Express" (In Malay) along the NS Highway.
Also, to enter Larkin Terminal, need a red colour pass?
Anyway, now there are some discipline at the jammed Causeway. Now
TP control the number of buses at the WDL Chkpt arrival alighting
bay. Another batch goes in after all at the alighting bay has
cleared. But still SMRT bus drivers still alight passengers at the
right lane 
Because of this, CW2 cannot u turn at WDL Chkpt 