History of Services 400 - 450

Service 400

Year	Date	Service changes
1989	30 July	Introduced between Shenton Way Ter and Marina Mall (loop).
2005	14 November	Re-classified as a Parks service.
2007	TBC	Amended to skip the western loop of Marina Mall, Marina Way and Marina Grove.
2008	19 October	Amended to loop at Marina Mall, skipping Marina Way and Marina Grove.
2009	15 March	Reverted back to trunk service.
2009	19 July	Extended to loop at Marina Gardens Dr.
2010	26 April	Amended to the relocated Shenton Way Ter.
2012	24 June	Amended to ply the extended Marina Gardens Dr with the permanent closure of Marina Mall.
2013	29 December	Amended to ply Marina Blvd/Central Blvd, Marina St, Central Blvd and Shenton Way with the opening of the Marina Coastal Expressway (MCE).
2014	28 September	Amended to ply Cecil St and Marina Blvd with the road changes in Marina South area, skipping express sectors along Maxwell Rd.

Year	Date	Service changes
1976	24 October	Introduced between Chai Chee Ter and East Coast Park Service Rd (loop), operating on Sundays and Public Holidays only.
1980	27 July	Amended to ply Bedok South Rd, skipping Bedok South Ave 1.
1985	8 September	Amended to Bedok Int with the closure of Chai Chee Ter.
1989	3 September	Extended to loop at Fort Rd and ply East Coast Park Service Rd in both directions.
1997	21 September	Extended to Lor 1 Geylang Ter and amended to ply Siglap Rd and Marine Parade Rd, skipping Bedok South Rd and Bedok South Ave 1.
2003	7 June	Extended to loop at Tomlinson Rd on a trial basis and enhanced to operate on Saturdays.
2004	24 April	Amended to ply Mountbatten Rd, Kallang Rd, Victoria St, Jln Sultan and Beach Rd with the temporary closure of Nicoll Highway.
2004	4 December	Shortened to loop at Fort Rd.
2005	19 November	Re-classified as a Parks service.
2006	19 March	Amended to ply Cassia Link, Cassia Cres, Guillemard Rd and Guillemard Camp Rd with the partial closure of Old Airport Rd and Dunman Rd to facilitate the construction of Dakota MRT station on the Circle MRT Line.
2009	3 January	Amended to ply the reinstated Old Airport Rd and Dunman Rd, skipping Cassia Link, Guillemard Rd and Guillemard Camp Rd.
2009	15 March	Reverted back to trunk service.
2011	19 November	Amended to Bedok Temp Int.
2014	30 November	Amended to Bedok Integrated Transport Hub.

Service Gen	Date	Service changes
1st Gen (1975 - 1982)	11 May 1975	Introduced between Stamford Rd (Capitol Theatre) and Bukit Timah Race Course (loop), operating on racing days that fall on Sundays only.
1st Gen (1975 - 1982)	28 February 1982	Withdrawn.
2nd Gen (1994 - 1995)	3 September 1994	Re-introduced between Bedok and Changi Coast Walk (loop) on a 3-month trial, operating on weekends and public holidays only.
2nd Gen (1994 - 1995)	1995	Withdrawn with the introduction of Service 35.
3rd Gen (2006 - present)	1 April 2006	Re-introduced between Marina South Pier and Shenton Way/Anson Rd (loop).
	28 November 2011	Re-routed to start from Shenton Way and loop at Marina South Pier with the shifting of the bus stop outside Marina South Pier.
	13 May 2012	Extended to serve the International Cruise Ter along Marina Coastal Dr, making 2 loops inside Marina South Pier. Dual Red/White plates were introduced, indicating 'Cruise Ter' (Red) & 'Shenton Way' (White).
	29 December 2013	Amended to ply Central Blvd, Marina Way & Marina Blvd towards Marina Coastal Dr and Central Blvd, Marina St, Marina Station Rd, Central Blvd and Shenton Way towards Shenton Way Ter with the opening of MCE.
	28 September 2014	Amended to ply Cecil St and Marina Blvd with the road changes in Marina South area, skipping Maxwell Rd.

Year	Date	Service changes
1977	3 April	Introduced between Pasir Ris Rd and Tampines Rd (loop), operating on Sundays and Public Holidays only.
1989	22 October	Amended to loop at Pasir Ris Dr 1 and revised to operate daily under Bus-MRT Rationalisation.
1989	10 December	Amended to loop at Pasir Ris Town Centre Rd.
1990	18 May	Amended to start from Pasir Ris Int and loop at Pasir Ris Rd under Bus-MRT Rationalization.
2005	14 November	Re-classified as a Parks service.
2009	15 March	Reverted back to trunk service.

Year	Date	Service changes
1978	4 June	Introduced between Jurong Int and Science Centre Rd (loop), operating on Saturdays, Sundays and Public Holidays only.
1980	15 June	Withdrawn.

Service Gen	Date	Service changes
1st Gen (1978 - 1979)	4 June 1978	Introduced between Jurong and Jurong Bird Park (loop), operating on Saturdays, Sundays & Public Holidays only.
1st Gen (1978 - 1979)	23 December 1979	Withdrawn.
2nd Gen (1993 - present)	18 July 1993	Re-introduced between Boon Lay and Choa Chu Kang Rd End (loop), operating on 2 weekends before, the actual day of and 2 weekends after Qing Ming, Good Friday, the weekend before Ramadan fasting month, Hari Raya Puasa, Hari Raya Haji, the weekend before and actual day of Deepavali and All Souls' Day.
	5 April 1997	Amended to ply Lim Chu Kang Rd.
	18 June 2006	Amended to Boon Lay Temp Int.
	27 December 2009	Amended to Boon Lay Integrated Transport Hub and ply Jurong West Ctrl 1.

Date	Service changes
7 June 2015	Introduced between Boon Lay and Choa Chu Kang Rd End (loop), operating during SEA Games 2015.
13 June 2015	Withdrawn.

Date	Service changes
4 June 1978	Introduced between Jurong and Chinese/Japanese Gardens (loop), operating on Saturdays, Sundays & Public Holidays only.
22 October 1989	Merged with Service 199 and withdrawn under Bus-MRT Rationalization.

Date	Service changes
3 June 1978	Introduced between Jurong and Pasir Laba Camp (SAFTI) (loop), operating between 1230 and 1430 hours on Saturdays & between 2000 and 2300 hours on Sundays & Public Holidays.
1 July 1990	Withdrawn.