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. (Related change)
2009	15 March	Reverted back to trunk service.
	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.

Service 401

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 New Upp Changi Rd, 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	20 April	Amended to ply Mountbatten Rd, Kallang Rd, Victoria St, Jln Sultan and Beach Rd with the temporary closure of Nicoll Highway.
	4 December	Shortened to loop at Fort Rd.
2005	14 November	Re-classified as a Parks service. (Related change)
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 402

Service Gen	Year	Date	Service changes
1st Gen (1975 - 1982)	1975	11 May	Introduced between Stamford Rd (Capitol Theatre) and Bukit Timah Race Course (loop), operating on racing days that fall on Sundays only.
	1982	28 February	Withdrawn.
2nd Gen (1994 - 1995)	1994	3 September	Re-introduced between Bedok Int and Changi Coast Walk (loop) on a 3-month trial, operating on Saturdays, Sundays and Public Holidays only.
	1995	TBC	Withdrawn.
3rd Gen (2006 - present)	2006	1 April	Re-introduced between Marina South Pier Ter and Anson Rd (loop).
	2011	28 November	Amended to start from Shenton Way Ter and loop at Marina Coastal Dr.
	2012	13 May	Extended to serve the International Cruise Ter along Marina Coastal Dr, making 2 loops inside Marina South Pier.
	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.

Service 403

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 enhanced to operate on weekdays and Saturdays under Bus-MRT Rationalisation.
	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. (Related change)
2009	15 March	Reverted back to trunk service.
2016	18 September	Handed over to Go-Ahead. (Related change)

Service 404

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 405

Service Gen	Year	Date	Service changes
1st Gen (1978 - 1979)	1978	4 June	Introduced between Jurong Int and Jln Ahmad Ibrahim (Jurong Bird Park) (loop), operating on Saturdays, Sundays and Public Holidays only.
	1979	23 December	Withdrawn.
2nd Gen (1993 - present)	1993	18 July	Re-introduced between Boon Lay Int 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.
	1997	5 April	Enhanced to ply Lim Chu Kang Rd.
	2006	18 June	Amended to Boon Lay Temp Int.
	2009	27 December	Amended to Boon Lay Integrated Transport Hub and amended to ply Jurong West Central 1, skipping Jurong West Central 3.

Service 406

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

Service 450

Year	Date	Service changes
1978	3 June	Introduced between Jurong Int and Pasir Laba Rd (loop), operating during Saturday afternoons and during the night on Sundays and Public Holidays.
1990	1 July	Withdrawn with the opening of Boon Lay Int.