History of Services 100 - 109

Service 100

1^st Generation (1971)

Operator	Route	Year	Date	Service changes
Singapore Traction Company	Serangoon Gdn ↔ Prince Edward	1971	11 April	Introduced between Serangoon Gdn Ter and Prince Edward Ter under 1971 Bus Reorganisation.
			9 May	Integrated with Service 100A and re-numbered Service 100/100A.

2^nd Generation (since 1974)

Operator	Route	Year	Date	Service changes
(Current) Known as prior to 1 November 2001	Serangoon Garden ↔ Prince Edward	1974	3 February	Re-numbered from Service 100/100A as a service between Serangoon Gdn Ter and Prince Edward Ter under 1974 Bus Rationalisation.
			8 December	Amended to ply the extended Robinson Rd, skipping Market St.
		1975	2 March	Amended to ply Sims Ave towards Serangoon Gdn Ter with the conversion of Geylang Rd to one-way traffic.
			21 July	Amended to ply St. Andrew's Rd and Stamford Rd, skipping Coleman St and Hill St.
		1976	15 February	Serves new staggered bus stop between Bank of India and Hong Leong Holdings along Robinson Rd.
			14 March	Serves new staggered bus stop outside The Cenotaph along Connaught Dr, skipping the bus stop opposite Singapore Cricket Club.
			16 August	Amended to ply Aljunied Rd with the introduction of Service 60, skipping MacPherson Est in both directions.
		1977	31 October	Amended to skip Serangoon Gdn Est with the introduction of Service 217.
		1979	11 February	Amended to ply the extended Shenton Way, Palmer Rd and Anson Rd, skipping Parsi Rd.
	Serangoon Garden ↔ World Trade Ctr	1985	13 January	Extended to World Trade Ctr Ter.
		1988	3 January	Serves new staggered bus stop opposite Treasury Bldg along Shenton Way, skipping the bus stop opposite Marina Hse.
	Serangoon ↔ World Trade Ctr		13 March	Amended to Serangoon Int.
	Serangoon ↔ Ghim Moh	1989	5 November	Integrated with Service 20, extended to Ghim Moh Ter and amended to ply Beach Rd, skipping Nth Bridge Rd/Victoria St.
		1994	3 July	Amended to ply Crawford St towards Serangoon Int.
		1996	TBC	Serves additional bus stop outside Kallang Stn along Sims Ave.
		1999	TBC	Skips a pair of removed bus stops outside and opposite Wishart Rd along Telok Blangah Rd.
	100Serangoon ↔ Ghim Moh 100ASerangoon → Aljunied Rd	2000	TBC	100AIntroduced from Serangoon Int to Aljunied Rd (Aljunied Stn) during morning peak hours on weekdays.
		2002	TBC	Serves new pair of bus stops after Sommerville Rd and after Sunshine Lodge along Upp Serangoon Rd.
	100Serangoon ↔ Ghim Moh 100ASerangoon → Aljunied Rd 100BGhim Moh → Telok Blangah Rd	2003	8 September	100BIntroduced as a short-trip service from Ghim Moh Ter to Telok Blangah Rd (HarbourFront Stn) during morning peak hours on weekdays.
		2006	29 October	Serves new bus stop outside VivoCity along Telok Blangah Rd.
		2007	28 April	Serves additional bus stop outside Victoria Concert Hall along Fullerton Rd.
		2008	7 December	Skips removed bus stop opposite Temenggong D Mque along Telok Blangah Rd.
	100Serangoon ↔ Ghim Moh 100ASerangoon → Aljunied Rd		TBC	100BDiscontinued.
		2011	3 September	Amended to Serangoon Integrated Transport Hub.
			26 September	Designated wheelchair-accessible bus service (WAB).
		2016	1 May	Amended to ply Esplanade Dr with the partial closure of Fullerton Rd.
		2017	12 March	Amended to ply Upp Serangoon Rd and the diverted Upp Aljunied Rd.
		2021	26 December	Amended to ply Esplanade Dr towards Ghim Moh Ter with the closure of Connaught Dr.
		2023	10 September	Extended to terminate at Ghim Moh Rd (Blk 7) towards Ghim Moh Ter.

Service 100A

Operator	Route	Year	Date	Service changes
Singapore Traction Company	Serangoon Gdn ↺ Finlayson Green	1971	11 April	Introduced between Serangoon Gdn Ter and Finlayson Green (Loop) under 1971 Bus Reorganisation.
			9 May	Integrated with Service 100 and discontinued.

Service 100/100A

Operator	Route	Year	Date	Service changes
Singapore Traction Company	Serangoon Gdn ↔ Prince Edward	1971	9 May	Re-numbered from Service 100 as a service between Serangoon Gdn Ter and Prince Edward Ter.
Associated Bus Services			6 December	Operations transferred to Associated Bus Services.
		1973	1 July	Operations transferred to Singapore Bus Services.
		1974	3 February	Re-numbered Service 100 under 1974 Bus Rationalisation.

Service 101

1^st Generation (1971 - 1990)

Operator	Route	Year	Date	Service changes
Singapore Traction Company	Serangoon Garden ↔ New Bridge Rd	1971	11 April	Introduced between Serangoon Gdn Ter and New Bridge Rd Ter under 1971 Bus Reorganisation.
Associated Bus Services			6 December	Operations transferred to Associated Bus Services.
		1972	18 June	Amended to ply Bendemeer Rd towards New Bridge Rd Ter with the conversion of Serangoon Rd to one-way traffic.
		1973	1 July	Operations transferred to Singapore Bus Services.
		1974	1 October	Serves new merged bus stop outside Sri Srinivasa Perumal Tp along Serangoon Rd.
		1977	31 October	Amended to skip Chartwell Dr, Burghley Dr and Berwick Dr with the introduction of Service 217.
		1981	10 May	Skips bus stop before Braddell Flyover along Lor Chuan.
		1983	6 February	Amended to ply CTE towards Serangoon Gdn Ter with the closure of temporary slip road between Braddell Rd and Lor Chuan.
			20 June	Amended back to ply Lor Chuan towards Serangoon Gdn Ter with the opening of new link road between Braddell Rd and Lor Chuan under Braddell Flyover.
		1987	3 May	Amended to terminate at New Bridge Rd Ter.
			6 June	Amended to the relocated New Bridge Rd Ter.
			27 September	Amended to ply the extended Eu Tong Sen St towards Serangoon Gdn Ter to facilitate the first stage of road expansion along New Bridge Rd.
			1 November	Amended to ply Eu Tong Sen St towards Serangoon Gdn Ter to facilitate the second stage of road expansion along New Bridge Rd.
	Serangoon ↔ New Bridge Rd	1988	13 March	Amended to Serangoon Int.
			20 March	Amended to ply Upp Cross St and New Bridge Rd, skipping Neil Rd.
		1990	2 September	Integrated with Service 83 and discontinued.

2^nd Generation (since 2004)

Operator	Route	Year	Date	Service changes
(Current)	Serangoon ↺ Buangkok Cres	2004	15 February	Introduced between Serangoon Int and Buangkok Cres (Loop), replacing Service 328.
	Serangoon ↺ Buangkok Lk	2005	14 August	Amended to loop at Buangkok Lk, skipping Buangkok Cres.
		2009	19 April	Serves new pair of bus stops outside Blk 834 and outside Hougang Polyclinic along Hougang Ave 4.
		2011	3 September	Amended to Serangoon Integrated Transport Hub.
			3 December	Designated wheelchair-accessible bus service (WAB).
		2017	9 July	Serves new pair of bus stops outside and opposite Blk 991B along Buangkok Lk.
		2018	23 December	Serves new bus stop opposite Blk 984A along Buangkok Lk.
	Serangoon ↺ Buangkok Cres	2019	25 August	Amended to loop at Buangkok Cres after Buangkok Lk.
		2022	13 March	Serves new bus stop outside Blk 991A along Buangkok Cres.

Service 101A

Operator	Route	Year	Date	Service changes
Singapore Traction Company	Serangoon Garden ↔ New Bridge Rd	1971	11 April	Introduced between Serangoon Gdn Ter and New Bridge Rd Ter under 1971 Bus Reorganisation.
Associated Bus Services			6 December	Operations transferred to Associated Bus Services.
		1972	18 June	Amended to ply Bendemeer Rd towards New Bridge Rd Ter with the conversion of Serangoon Rd to one-way road.
		1973	1 July	Operations transferred to Singapore Bus Services.
		1974	3 February	Discontinued under 1974 Bus Rationalisation.

Service 102

1^st Generation (1971 - 1977)

Operator	Route	Year	Date	Service changes
Singapore Traction Company	Serangoon Garden ↔ Prince Edward	1971	11 April	Introduced between Serangoon Gdn Ter and Prince Edward Ter under 1971 Bus Reorganisation.
United Bus Company			6 December	Operations transferred to United Bus Company.
		1972	18 June	Amended to ply Bendemeer Rd towards Prince Edward Ter with the conversion of Serangoon Rd to one-way traffic.
		1973	1 July	Operations transferred to Singapore Bus Services.
		1974	3 February	Converted to semi-express service under 1974 Bus Rationalisation.
			8 December	Amended to ply the extended Robinson Rd, skipping Market St.
		1976	15 February	Serves new staggered bus stop between Bank of India and Hong Leong Holdings along Robinson Rd.
			14 March	Serves new staggered bus stop outside The Cenotaph along Connaught Dr, skipping the bus stop opposite Singapore Cricket Club.
		1977	31 October	Discontinued.

2^nd Generation (1981 - 1983)

Operator	Route	Year	Date	Service changes
	Jln Kayu ↔ New Bridge Rd	1981	2 March	Introduced between Jln Kayu Ter and New Bridge Rd Ter, operating on weekdays and Saturdays only.
		1983	14 November	Discontinued.

3^rd Generation (since 2015)

Operator	Route	Year	Date	Service changes
(Current)	Hougang Ctrl ↺ Jln Kayu	2015	20 September	Introduced between Hougang Ctrl Int and Jln Kayu (Loop) under the LTA's Bus Service Enhancement Programme (BSEP), operating between 0545 hrs and 2330 hrs daily. Wheelchair-accessible bus service (WAB) at launch.
	Hougang Ctrl ↺ Seletar Aerospace Ave	2018	14 October	Extended to loop at Seletar Airport PTB.
		2019	22 September	Serves new pair of bus stops opposite and after Seletar Camp along Seletar Aerospace Dr.
		2022	29 May	Amended to ply Fernvale Rd, Sengkang West Ave, Sengkang West Rd and Sengkang West Way, skipping a portion of Sengkang West Way.
				First bus brought forward to 0530 hrs daily.
	102Hougang Ctrl ↺ Seletar Aerospace Ave 102ASengkang East Way → Sengkang West Way	2023	27 March	102AIntroduced as a short-trip service from Sengkang East Way (Sengkang Stn) to Sengkang West Way (Opp Blk 461B) during evening peak hours on weekdays. Wheelchair-accessible bus service (WAB) at launch.
	102Hougang Ctrl ↺ Seletar Aerospace Ave 102ASengkang East Way → Sengkang West Way 102BSengkang West Way → Sengkang East Way		9 October	102BIntroduced as a short-trip service from Sengkang West Way (Blk 461B) to Sengkang East Way (Opp Sengkang Stn/Blk 260A) during morning peak hours on weekdays. Wheelchair-accessible bus service (WAB) at launch.

Service 102A

Operator	Route	Year	Date	Service changes
Singapore Traction Company	Serangoon Garden ↔ Prince Edward	1971	11 April	Introduced between Serangoon Gdn Ter and Prince Edward Ter under 1971 Bus Reorganisation.
United Bus Company			6 December	Operations transferred to United Bus Company.
		1972	18 June	Amended to ply Bendemeer Rd towards Prince Edward Ter with the conversion of Serangoon Rd to one-way traffic.
		1973	1 July	Operations transferred to Singapore Bus Services.
		1974	3 February	Re-numbered Service 105 under 1974 Bus Rationalisation.

Service 103

Operator	Route	Year	Date	Service changes
Associated Bus Services	Serangoon Garden ↔ Commonwealth Ave	1971	11 April	Introduced between Serangoon Gdn Ter and Commonwealth Ave Ter under 1971 Bus Reorganisation.
		1972	18 June	Amended to ply Bendemeer Rd towards Commonwealth Ave Ter with the conversion of Serangoon Rd to one-way traffic.
		1973	1 July	Operations transferred to Singapore Bus Services.
	Jln Kayu ↔ Commonwealth Ave	1974	3 February	Extended to Jln Kayu Ter under 1974 Bus Rationalisation.
			1 October	Serves new merged bus stop outside Sri Srinivasa Perumal Tp along Serangoon Rd.
		1975	2 February	Amended to ply new slip road from Tiong Bahru Rd to Outram Rd with the conversion of Seng Poh Rd to one-way traffic.
			2 November	Amended to temporary bus terminal along Holland Dr with the partial closure of Commonwealth Ave Ter to facilitate the extension of Commonwealth Ave.
		1977	29 August	Amended back to Commonwealth Ave Ter via Nth Buona Vista Rd.
		1980	13 July	Amended to ply Commonwealth Ave with the conversion of Queens Circus to a signalised junction, skipping Queensway and Holland Rd.
	Jln Kayu ↔ Buona Vista	1982	27 May	Amended to Buona Vista Ter.
		1987	6 April	Skips removed bus stop before College Rd along Outram Rd.
			27 September	Amended to ply the extended Eu Tong Sen St towards Jln Kayu Ter to facilitate the first stage of road expansion along New Bridge Rd.
			1 November	Amended to ply Eu Tong Sen St to facilitate the second stage of road expansion along New Bridge Rd.
			13 December	Serves new staggered bus stop opposite Peninsula Plaza along Nth Bridge Rd, skipping the bus stop outside St Andrew's Cath.
		1989	29 January	Serves relocated bus stop opposite Sri Mariamman Tp along Sth Bridge Rd, skipping a removed bus stop opposite Jamae Mque.
	Jln Kayu ↔ New Bridge Rd	1992	29 March	Shortened to New Bridge Rd Ter under TransitLink Network Integration Exercise Phase 6.
		1995	17 December	Operations transferred to Trans Island Bus Services.
		1998	TBC	Skips a pair of temporarily closed bus stops before and after Seletar West Farmway 1 along Jln Kayu.
		1999	10 July	Skips the bus stop outside Plaza By The Pk along Bras Basah Rd.
(Current) Known as prior to 1 November 2001			26 December	Operations transferred to Singapore Bus Services.
		2001	15 July	Amended to ply Yio Chu Kang Lk and Boundary Rd.
		2002	TBC	Serves new pair of bus stops after Sommerville Rd and after Sunshine Lodge along Upp Serangoon Rd.
			31 December	Serves reinstated pair of bus stops before and after Sengkang West Ave along Jln Kayu.
		2003	TBC	Serves new pair of bus stops outside Potong Pasir Stn along Upp Serangoon Rd.
	Serangoon ↺ Piccadilly		7 December	Shortened to start from Serangoon Int and loop at Piccadilly, and integrated with Service 378 under North East Line Rationalisation Phase 3.
		2007	1 July	Skips removed bus stop after East Camp Gate along Piccadilly.
	Serangoon ↺ West Camp Rd	2011	13 February	Integrated with Service 103M and extended to loop at West Camp Rd.
			3 September	Amended to the relocated Serangoon Integrated Transport Hub.
		2012	2 February	Serves new pair of bus stops before and after Rolls Royce Pte Ltd along Seletar Aerospace Dr.
		2013	13 October	Amended to ply Sengkang West Ave and Sengkang West Rd with the partial closure of Jln Kayu.
		2014	3 December	Designated wheelchair-accessible bus service (WAB).
	Serangoon ↔ Yishun	2015	14 June	Extended to Yishun Temp Int under the LTA's Bus Service Enhancement Programme (BSEP).
		2018	25 November	Serves 3 new bus stops before and opposite Blk 469B and opposite Yishun St 43 along Yishun Ave 1.
		2019	8 September	Amended to the relocated Yishun Integrated Transport Hub.
		2020	12 January	Serves new bus stop outside Blk 469B along Yishun Ave 1.
		2022	26 June	Serves new bus stop outside Blk 471A along Yishun Ave 1.
		2024	13 October	Serves new bus stop opposite Blk 470A along Yishun Ave 1.

Service 103A

Operator	Route	Year	Date	Service changes
Associated Bus Services	Serangoon Garden ↔ Commonwealth Ave	1971	11 April	Introduced between Serangoon Gdn Ter and Commonwealth Ave Ter under 1971 Bus Reorganisation.
		1972	18 June	Amended to ply Bendemeer Rd towards Commonwealth Ave Ter with the conversion of Serangoon Rd to one-way traffic.
		1973	1 July	Operations transferred to Singapore Bus Services.
		1974	3 February	Re-numbered Service 106 under 1974 Bus Rationalisation.

Service 103W/103M

Operator	Route	Year	Date	Service changes
	103WSerangoon ↺ West Camp Rd	2003	7 December	103WIntroduced between Serangoon Int and West Camp Rd (Loop) as Service 103W with the integration of Service 379 under North East Line Rationalisation Phase 3.
	103MSerangoon ↺ West Camp Rd	2008	28 January	103W 103MRe-numbered Service 103M.
		2011	13 February	103MIntegrated with Service 103 and discontinued with the partial closure of West Camp Rd and New West Camp Rd.

Service 104

Operator	Route	Year	Date	Service changes
United Bus Company	Serangoon Garden ↺ Upp Cross St	1971	23 April	Introduced between Serangoon Gdn Ter and Upp Cross St (Loop).
			5 July	Amended to ply Chartwell Dr, Burghley Dr, Berwick Dr and Serangoon Gdn Way towards Upp Cross St.
		1972	11 June	Amended to ply the extended Upp Cross St with the partial conversion of Havelock Rd to one-way traffic, skipping New Bridge Rd.
		1973	11 March	Amended to ply Hoot Kiam Rd towards Serangoon Gdn Ter with the conversion of Irwell Bank Rd to one-way traffic.
			1 July	Operations transferred to Singapore Bus Services.
		1977	31 October	Amended to skip Chartwell Dr, Burghley Dr and Berwick Dr with the introduction of Service 217.
		1983	6 February	Amended to ply CTE towards Serangoon Gdn Ter with the closure of temporary slip road between Braddell Rd and Lor Chuan.
			20 June	Amended back to ply Lor Chuan towards Serangoon Gdn Ter with the opening of new link road between Braddell Rd and Lor Chuan under Braddell Flyover.
		1986	28 September	Amended to ply Keng Lee Rd, Kg Java Rd and Bt Timah Rd, skipping Cavenagh Rd.
		1987	13 December	Serves new bus stop outside Newton Stn along Scotts Rd.
	Serangoon ↺ Upp Cross St	1988	13 March	Amended to Serangoon Int.
	Serangoon ↔ New Bridge Rd	1992	3 May	Extended to New Bridge Rd Ter and amended to ply Ang Mo Kio Ave 1 and Bishan Rd under TransitLink Network Integration Exercise Phase 7, skipping Lor Chuan.
		1993	5 December	Integrated with Service 134 to form Service 54 and discontinued under TransitLink Network Integration Exercise Phase 14.

Service 105

1^st Generation (1974 - 1977)

Operator	Route	Year	Date	Service changes
	Serangoon Garden ↔ Prince Edward	1974	3 February	Re-numbered from Service 102A as a service between Serangoon Gdn Ter and Prince Edward Ter.
			8 December	Amended to ply the extended Robinson Rd, skipping Market St.
		1976	15 February	Serves new staggered bus stop between Bank of India and Hong Leong Holdings along Robinson Rd.
			14 March	Serves new staggered bus stop outside The Cenotaph along Connaught Dr, skipping the bus stop opposite Singapore Cricket Club.
		1977	31 October	Discontinued.

2^nd Generation (since 1988)

Operator	Route	Year	Date	Service changes
(Current) Known as prior to 1 November 2001	Serangoon ↔ Clementi	1988	13 March	Introduced between Serangoon Int and Clementi Int, replacing Service 95.
		1991	1 April	First bus from Serangoon Int brought forward to 0545 hrs on weekdays and Saturdays.
	Serangoon ↔ Jurong East	1992	29 March	Extended to Jurong East Int under TransitLink Network Integration Exercise Phase 6.
			3 May	Integrated with Service 312 and amended to ply Serangoon Ave 2, Serangoon Ave 3 and Lor Chuan under TransitLink Network Integration Exercise Phase 7.
		1993	5 December	Amended to ply Queensway, Commonwealth Ave and Commonwealth Ave West under TransitLink Network Integration Exercise Phase 14, skipping Ulu Pandan Rd and Clementi Rd.
		1997	TBC	Serves new pair of bus stops outside Blk 286A and outside Blk 284 along Toh Guan Rd.
		1999	TBC	Skips temporarily closed bus stops outside and opposite Sch of Mechanical & Mfg along Commonwealth Ave West.
	105Serangoon ↔ Jurong East 105ASerangoon → Whitley Rd		TBC	105AIntroduced from Serangoon Int to Whitley Rd (Aft Tanglin CC) during morning peak hours on weekdays.
		2000	TBC	Last bus from Jurong East Int extended to 2400 hrs on Saturdays.
	105Serangoon ↔ Jurong East 105ASerangoon → Whitley Rd 105BJurong East → Commonwealth Ave West			105BIntroduced from Jurong East Int to Commonwealth Ave West (Clementi Stn) during morning peak hours on weekdays.
		2001	18 October	Serves reinstated bus stops outside Dover Stn along Commonwealth Ave West.
	105Serangoon ↔ Jurong East 105ASerangoon → Lor 2 Toa Payoh 105BJurong East → Commonwealth Ave West	2003	TBC	105AShortened to terminate at Lor 2 Toa Payoh (Toa Payoh Stn).
		2009	5 July	Amended to ply Boon Lay Way with the closure of Jurong East St 12 to facilitate the Jurong East Modification Project (JEMP).
		2011	3 September	Amended to Serangoon Integrated Transport Hub, skipping Boundary Rd with the route amendment of Service 109.
	105Serangoon ↔ Jurong East 105BJurong East → Commonwealth Ave West		TBC	105ADiscontinued.
			17 December	Amended to Jurong East Temp Int.
		2012	26 March	Designated wheelchair-accessible bus service (WAB).
		2020	6 December	Amended to relocated Jurong East Temp Int and serve new bus stop before Jurong East Stn along Jurong Gateway Rd.

Service 106

Operator	Route	Year	Date	Service changes
	Serangoon Garden ↔ Commonwealth Ave	1974	3 February	Re-numbered from Service 103A as a service between Serangoon Gdn Ter and Commonwealth Ave Ter.
			1 October	Serves new merged bus stop outside Sri Srinivasa Perumal Tp along Serangoon Rd.
		1977	17 May	Amended to ply Commonwealth Ave Extension and Nth Buona Vista Rd towards Commonwealth Ave Ter.
			29 August	Amended to ply Holland Ave, Holland Dr and Nth Buona Vista Rd towards Commonwealth Ave Ter.
			31 October	Amended to skip Chartwell Dr, Burghley Dr and Berwick Dr with the introduction of Service 217.
			7 November	Amended to ply Penang Rd, Somerset Rd, Grange Rd, Orchard Rd/Orchard Blvd, Tanglin Rd, Napier Rd, Holland Rd and Holland Ave, skipping Bras Basah Rd, Nth Bridge Rd/Hill St, Sth Bridge Rd, Upp Circular Rd, New Bridge Rd, River Valley Rd, Delta Rd, Alexandra Rd, Tanglin Rd, Margaret Dr, Queensway and Commonwealth Dr.
	Serangoon Garden ↔ Buona Vista	1982	27 May	Amended to Buona Vista Ter.
		1983	6 February	Amended to ply CTE towards Serangoon Gdn Ter with the closure of temporary slip road between Braddell Rd and Lor Chuan.
			20 June	Amended back to ply Lor Chuan towards Serangoon Gdn Ter with the opening of new link road between Braddell Rd and Lor Chuan under Braddell Flyover.
	Serangoon Garden ↔ Bukit Batok	1985	28 October	Extended to Bt Batok Ter.
		1986	31 August	Serves additional bus stop outside Blk 9 along Holland Ave.
		1987	27 September	Amended to Bt Batok Int.
	Serangoon ↔ Bukit Batok	1988	13 March	Amended to Serangoon Int.
		1992	19 July	Amended to ply Orchard Lk due to the closure of Grange Rd to facilitate road expansion works.
		1999	TBC	Skips temporarily closed bus stops outside and opposite Sch of Mechanical & Mfg along Commonwealth Ave West.
Known as prior to 10 May 2004		2000	24 December	Operations transferred to Trans Island Bus Services.
	106Serangoon ↔ Bukit Batok 106ABukit Batok → Commonwealth Ave West	2001	18 October	Serves reinstated bus stops outside Dover Stn along Commonwealth Ave West.
			TBC	106AIntroduced from Bt Batok Int to Commonwealth Ave West (Opp SP T1A) during morning peak hours on weekdays.
		2002	7 July	Skips the bus stop opposite Mandarin Singapore along Orchard Rd.
			TBC	Serves new pair of bus stops after Sommerville Rd and after Sunshine Lodge along Upp Serangoon Rd.
		2003	TBC	Serves new pair of bus stops outside Potong Pasir Stn along Upp Serangoon Rd.
	Serangoon ↔ Bukit Batok		TBC	106ADiscontinued.
	Marina Ctr ↔ Bukit Batok		27 July	Shortened to Marina Ctr Ter under North East Line Rationalisation Phase 2.
		2005	2 July	Amended to ply Grange Rd with the partial closure of Somerset Rd.
	Shenton Way ↔ Bukit Batok	2010	26 April	Extended to Shenton Way Ter.
	106Shenton Way ↔ Bukit Batok 106ACentral Blvd ↺ Bayfront Ave		22 September	106AIntroduced between Central Blvd (Bef Marina Way) and Bayfront Ave (Loop), operating during the 2010 Formula 1 Singapore Grand Prix.
	Shenton Way ↔ Bukit Batok		28 September	106ADiscontinued.
	106Shenton Way ↔ Bukit Batok 106ACentral Blvd ↺ Bayfront Ave	2011	21 September	106ARe-introduced between Central Blvd (Bef Marina Way) and Bayfront Ave (Loop), operating during the 2011 Formula 1 Singapore Grand Prix.
	Shenton Way ↔ Bukit Batok		27 September	106ADiscontinued.
	106Shenton Way ↔ Bukit Batok 106ABukit Batok → Commonwealth Ave West	2012	17 September	106AIntroduced from Bt Batok Int to Commonwealth Ave West (Clementi Stn) during morning peak hours on weekdays.
		2013	1 December	Serves new bus stop outside Downtown Stn along Central Blvd.
		2014	28 September	Amended to ply Robinson Rd and Marina Blvd towards Bt Batok Int, skipping Maxwell Rd and Central Blvd with the road changes in the Marina Sth area.
		2015	14 June	Designated wheelchair-accessible bus service (WAB).
(Current)		2016	29 May	Operations transferred to Tower Transit Singapore.
		2017	25 June	Amended to the relocated Shenton Way Ter.

Service 107

Operator	Route	Year	Date	Service changes
(Current) Known as prior to 1 November 2001	Serangoon Garden ↺ Shenton Way	1978	23 January	Introduced between Serangoon Gdn Ter and Shenton Way (Loop) as a semi-express service on weekdays and Saturdays, replacing Blue Arrow Service 304.
		1979	11 February	Amended to ply the extended Shenton Way, Keppel Rd and Anson Rd, skipping Parsi Rd.
		1981	10 May	Skips bus stop before Braddell Flyover along Braddell Rd.
			11 October	Serves new staggered bus stop outside Tunas Bldg along Anson Rd, skipping the bus stop outside Intl Plaza.
		1983	6 February	Amended to ply CTE towards Serangoon Gdn Ter with the closure of temporary slip road between Braddell Rd and Lor Chuan.
			20 June	Amended back to ply Lor Chuan towards Serangoon Gdn Ter with the opening of new link road between Braddell Rd and Lor Chuan under Braddell Flyover.
		1988	3 January	Serves new staggered bus stop opposite Treasury Bldg along Shenton Way, skipping the bus stop opposite Marina Hse.
	Serangoon ↺ Shenton Way		13 March	Amended to Serangoon Int, converted to full day trunk service and amended to ply Kallang Bahru and Marina Ctr.
		1989	11 June	Amended to skip Marina Ctr.
		1994	3 July	Amended to ply Kallang Rd, Victoria St and Jln Sultan towards Shenton Way, skipping Crawford St.
		1997	23 March	Converted to day service with the introduction of Service 107X.
	107Serangoon ↺ Shenton Way 107ASerangoon → Shenton Way	2000	TBC	107AIntroduced from Serangoon Int to Shenton Way (Opp Temasek Twr) during morning peak hours on weekdays.
		2001	TBC	Last bus revised to 1330 hrs on Saturdays.
		2002	TBC	Serves new pair of bus stops after Sommerville Rd and after Sunshine Lodge along Upp Serangoon Rd.
		2003	4 May	Amended to ply Geylang Bahru, Bendemeer Rd, Whampoa East and Serangoon Rd, skipping Jln Kolam Ayer.
			TBC	Serves new pair of bus stops outside Potong Pasir Stn along Upp Serangoon Rd.
	Hougang Ctrl ↔ Shenton Way		30 November	Extended to Hougang Ctrl Int and amended to Shenton Way Ter under North East Line Rationalisation Phase 3, replacing the deleted sectors of Service 97.
				107ADiscontinued with the amendment of Service 107 to Shenton Way Ter under North East Line Rationalisation Phase 3.
		2007	28 April	Serves additional bus stop outside Victoria Concert Hall along Fullerton Rd.
		2009	27 December	Serves the bus stop opposite Singapore Cricket Club along Connaught Dr with the abolition of the bus stop outside Esplanade Pk.
		2015	3 December	Designated wheelchair-accessible bus service (WAB).
		2016	1 May	Amended to ply Esplanade Dr with the partial closure of Fullerton Rd.
		2017	25 June	Amended to the relocated Shenton Way Ter.
		2021	7 February	Amended to ply Bidadari Pk Dr, skipping a portion of Upp Serangoon Rd.
			26 December	Amended to ply Esplanade Dr towards Shenton Way Ter with the closure of Connaught Dr.
		2022	28 August	Temporarily amended to ply Hougang Ctrl and Hougang Ave 4 with the partial closure of Hougang Ctrl to facilitate the construction of Hougang station on the Cross Island Line.

Service 107X/107M

Operator	Route	Year	Date	Service changes
(Current) Known as prior to 1 November 2001	107XSerangoon ↺ Raffles Blvd	1997	23 March	107XIntroduced between Serangoon Int and Raffles Blvd (Loop) as an alternate route of Service 107, operating during off peak periods on weekdays and Saturdays and throughout the day on Sundays and Public Holidays, numbered as Service 107X.
		2001	TBC	First bus brought forward to 1340 hrs on Saturdays.
		2002	TBC	Serves new pair of bus stops after Sommerville Rd and after Sunshine Lodge along Upp Serangoon Rd.
		2003	4 May	Amended to ply Geylang Bahru, Bendemeer Rd, Whampoa East and Serangoon Rd, skipping Jln Kolam Ayer.
			TBC	Serves new pair of bus stops outside Potong Pasir Stn along Upp Serangoon Rd.
	107XHougang Ctrl ↺ Raffles Blvd		30 November	Extended to Hougang Ctrl Int under North East Line Rationalisation Phase 3, replacing the deleted sectors of Service 97.
	107MHougang Ctrl ↺ Raffles Blvd	2008	28 January	107X 107MRe-numbered Service 107M.
		2015	3 December	Designated wheelchair-accessible bus service (WAB).
		2021	7 February	Amended to ply Bidadari Pk Dr, skipping a portion of Upp Serangoon Rd.
		2022	28 August	Temporarily amended to ply Hougang Ctrl and Hougang Ave 4 with the partial closure of Hougang Ctrl to facilitate the construction of Hougang station on the Cross Island Line.

Service 109

Operator	Route	Year	Date	Service changes
(Current)	Serangoon ↔ Changi Village	2006	28 May	Introduced between Serangoon Int and Changi Village Ter, operating between 0600 hrs and 2330 hrs from Serangoon Int and Changi Village Ter daily.
			TBC	First bus from Serangoon Int brought forward to 0545 hrs on weekdays.
		2011	3 September	Amended to Serangoon Integrated Transport Hub and amended to ply Boundary Rd with the route amendment of Service 105.
			26 September	Designated wheelchair-accessible bus service (WAB).
		2012	29 April	Serves new bus stop outside Blk 612 along Pasir Ris Dr 1.
	109Serangoon ↔ Changi Village 109ASerangoon → Hougang Ave 4	2014	26 May	109AIntroduced from Serangoon Int to Hougang Ave 4 (Blk 913) during evening peak hours on weekdays. Wheelchair-accessible bus service (WAB) at launch.
			5 October	Serves additional pair of bus stops before and after Punggol Rd along TPE.
		2016	13 November	Serves new pair of bus stops opposite Blk 293D and outside Blk 286B along Sengkang East Rd.
		2022	30 October	Temporarily amended to ply Pasir Ris St 11 and Pasir Ris St 12 with the partial closure of Pasir Ris Dr 1 to facilitate the construction of Pasir Ris East station on the Cross Island Line.
		2023	26 February	Temporarily amended to ply the bus-only corridor along Loyang Ave and Loyang Way with the partial closure of Loyang Ave to facilitate the construction of Loyang Viaduct and Loyang station on the Cross Island Line, skipping 3 pairs of bus stops along Loyang Ave.
			8 October	Temporarily amended to ply Pasir Ris Ctrl and Pasir Ris Dr 8 with the partial closure of Pasir Ris Dr 1 to facilitate the construction of Pasir Ris station on the Cross Island Line.

See also

• History of Bus Services