Service 21 was introduced in 1993, plying between Pasir Ris int
and Lor 1 Geylang ter. In 1994, merged with service 4 (Tampines -
St. Michael's)
Service 23 originally plied between Tampines int and Tomlinson Rd
(loop), shortened to Rochor Canal Rd after MRT went to
Orchard.
Service 27 originally plied between Tampines int and Changi Airport
PTB, once extended to Pasir Ris int but later shortened back to
Tampines with the extension of service 53. In July 1999, extended
to Sengkang int. In Dec 2002, extended again to Hougang Ctrl
int.
Service 28 orginally plied between Tampines int and New Bridge Rd
ter, withdrawn in 1992. Re-introduced in 1994, plying between
Tampines int and Bedok int. In 2000, merged with service 152 and
extended to Toa Payoh int.
Service 29 originally plied between Tampines int and CACC. In 1993,
trips were truncated to loop at Changi Village terminal after 1930
hrs. In 1994, amended to loop at Changi Village terminal with the
re-introduction of service 19.
Service 30 was amended to terminate at Boon Lay int in July 1990,
with the closure of Jurong int. In June 1992, amended to ply ECP
and Fort Rd.
Service 31 originally plied between Tampines int and Stadium Blvd.
Merged with service 149 in 1993.
