History of Serangoon Feeder Services

Service 217 (1977 - 1996)

Operator	Year	Date	Service changes
	1977	31 October	Introduced between Serangoon Gdn Ter and Berwick Dr (Loop).
	1988	13 March	Amended to Serangoon Int.
		8 August	First bus brought forward to 0530 hrs on weekdays and Saturdays.
	1996	9 March	Amended to ply Upp Serangoon Rd and Boundary Rd and re-numbered Service 317.

Service 312 (1985 - 1992)

Operator	Year	Date	Service changes
	1985	22 December	Introduced between Serangoon Ave 3 Ter and Upp Serangoon Rd (Loop).
	1988	13 March	Amended to start from Serangoon Int and loop at Serangoon Ave 3.
		24 April	Serves new bus stop outside Golden Hts along Serangoon Ave 3.
	1992	3 May	Integrated with Service 105 and withdrawn under TransitLink Network Integration Exercise Phase 7.

Service 315

Operator	Year	Date	Service changes
	1984	2 December	Introduced between Serangoon Gdn Ter and Serangoon Ave 5 (Loop).
	1985	22 April	Amended to ply the extended Serangoon Ave 5, skipping Ang Mo Kio Ave 3 and Yio Chu Kang Rd towards Serangoon Gdn Ter.
	1988	13 March	Amended to Serangoon Int.
		8 August	First bus brought forward to 0530 hrs daily.
	1989	28 May	Integrated with Service 318 and amended to ply Boundary Rd, Lor Chuan and Serangoon Gdn Way, skipping Yio Chu Kang Lk.
	1994	TBC	Serves additional pair of bus stops outside Blk 261 and outside Blk 206 along Serangoon Ctrl.
	1995	11 June	Extended to loop at Serangoon Nth Ave 4.
		TBC	Last bus extended to 2400 hrs daily.
	1997	TBC	Serves new bus stop outside Blk 112 along Serangoon Nth Ave 1.
Template:SBS Transit (Current)	2003	20 June	Last bus extended to 0030 hrs on weekdays and Saturdays, and 0020 hrs on Sundays and Public Holidays.
	2004	3 October	Skips the bus stop outside Blk 206 along Serangoon Ctrl.
	2009	28 May	Last bus extended to 0050 hrs daily.
	2011	30 January	Extended to loop at Serangoon Nth Ave 5.
		3 September	Amended to Serangoon Integrated Transport Hub.
		26 September	Designated wheelchair-accessible bus service (WAB).

Service 317

Operator	Year	Date	Service changes
	1996	9 March	Re-numbered from Service 217 as a service between Serangoon Int and Berwick Dr (Loop).
Template:SBS Transit (Current)	2003	20 June	Serves new bus stop outside Serangoon Stn along Serangoon Ctrl towards Serangoon Int.
		TBC	Serves new bus stop outside Serangoon Stn along Serangoon Ctrl.
	2011	3 September	Amended to Serangoon Integrated Transport Hub.
		26 September	Designated wheelchair-accessible bus service (WAB).
	2015	4 May	Last bus extended to 0050 hrs daily.

Service 318 (1988 - 1989)

Operator	Year	Date	Service changes
	1988	13 March	Introduced between Serangoon Int and Serangoon Gdn Way (Loop).
	1989	28 May	Integrated with Service 315 and withdrawn.