21, 125: ply Jln Besar, Kitchener Rd, S'goon Rd instead of
turning to Balestier Rd via Lavender St.
130, 139: ply S'goon Rd, Boon Keng Rd, Bendemeer Rd instead of
proceeding straight to Lavender St and turn to Jln Besar.
22 (or is it 24?), 53, 70: diverted to Serangoon Central via Upper
Serangoon Rd in both directions.
72: diverted to Hougang Central in both directions.
83: extended to Punggol Station from current route.