History of Services 50 - 59

Service 50

1^st Generation (1971 - 1991)

Operator	Route	Year	Date	Service changes
Associated Bus Services	Kaki Bukit ↔ Prince Edward	1971	11 April	Introduced between Kaki Bt Ter and Prince Edward Ter under 1971 Bus Reorganisation.
	Kaki Bukit ↔ Lengkok Bahru		9 May	Extended to Lengkok Bahru Ter.
		1973	1 July	Operations transferred to Singapore Bus Services.
		1974	3 February	Amended to ply Sims Ave and Paya Lebar Rd under 1974 Bus Rationalisation, skipping Geylang Rd and Changi Rd.
			8 December	Amended to skip Market St.
		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 March	Amended to ply Geylang Rd towards Lengkok Bahru Ter with the conversion of Sims Ave to one-way traffic.
		1976	15 February	Serves new staggered bus stop between Bank of India and Hong Leong Holdings along Robinson Rd.
		1978	15 January	Amended to ply Jln Sultan, skipping Sumbawa Rd.
		1979	11 February	Amended to ply the extended Shenton Way towards Lengkok Bahru Ter, skipping Parsi Rd and Anson Rd.
	Kaki Bukit ↔ Bukit Merah		23 December	Amended to Bt Merah Ctrl Ter.
		1980	20 January	Amended to ply Spottiswoode Pk Rd with the partial conversion of Cantonment Rd to one-way traffic.
			28 September	Amended to Bt Merah Int.
		1981	11 October	Serves new staggered bus stop outside Tunas Bldg along Anson Rd, skipping the bus stop outside Intl Plaza.
	Jln Eunos ↔ Bukit Merah	1984	17 June	Amended to Jln Eunos Ter.
	Eunos ↔ Bukit Merah	1987	22 March	Amended to Eunos Ter.
			6 April	Skips removed bus stop before College Rd along Outram Rd.
		1989	10 December	Amended to Eunos Int.
		1991	6 January	Discontinued under TransitLink Network Integration Exercise Phase 1.

2^nd Generation (since 2012)

Operator	Route	Year	Date	Service changes
(Current)	Bishan ↔ Punggol	2012	16 December	Introduced between Bishan Int and Punggol Int under the LTA's Bus Service Enhancement Programme (BSEP), operating between 0545 hrs and 2345 hrs on weekdays & Saturdays / between 0600 hrs and 2345 hrs on Sundays & Public Holidays from Bishan Int, and between 0530 hrs and 2345 hrs on weekdays & Saturdays / between 0545 hrs and 2345 hrs on Sundays & Public Holidays from Punggol Int.
		2013	31 March	Designated wheelchair-accessible bus service (WAB).
			13 October	Amended to ply Sengkang West Ave and Sengkang West Rd with the partial closure of Jln Kayu.
		2015	11 January	Serves additional bus stop outside Blk 988B along Yio Chu Kang Rd.
		2016	25 September	Serves new pair of bus stops outside Waterwoods and after Punggol Field along Punggol East.
	50Bishan ↔ Punggol 50APunggol East → Ang Mo Kio Ave 8	2024	30 September	50AIntroduced from Punggol East (Aft Punggol Field) to Ang Mo Kio Ave 8 (Bef Ang Mo Kio Stn Exit B) during morning peak hours on weekdays excluding public holidays. Wheelchair-accessible bus service (WAB) at launch.

Service 50A

Operator	Route	Year	Date	Service changes
Associated Bus Services	Kaki Bt ↺ Stamford Rd	1971	11 April	Introduced between Kaki Bt Ter and Stamford Rd (Loop) under 1971 Bus Reorganisation.
		1973	1 July	Operations transferred to Singapore Bus Services.
		1974	3 February	Extended to Alexandra Rd (Alexandra Hosp) Ter and re-numbered Service 53 under 1974 Bus Rationalisation.

Service 51

Operator	Route	Year	Date	Service changes
Associated Bus Services	Jln Eunos ↔ Labrador	1971	11 April	Introduced between Jln Eunos Ter and Labrador Ter under 1971 Bus Reorganisation.
			28 September	Amended to ply the extended Ganges Ave towards Jln Eunos Ter.
		1972	11 June	Amended to ply Upp Cross St with the partial conversion of Havelock Rd to one-way traffic, skipping Upp Hokien St.
(Current) Known as prior to 1 November 2001		1973	1 July	Operations transferred to Singapore Bus Services.
		1975	2 March	Amended to ply Sims Ave towards Jln Eunos Ter with the conversion of Geylang Rd to one-way traffic.
		1979	11 November	Amended to ply Ganges Ave towards Alexandra Rd Ter with the realignment of Delta Circus.
	Hougang ↔ Labrador	1987	22 March	Integrated with Service 54 and extended to Hougang Int.
			27 September	Amended to ply the extended Eu Tong Sen St towards Hougang Int to facilitate the first stage of road expansion along New Bridge Rd.
			1 November	Amended to ply Eu Tong Sen St towards Hougang Int 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.
	Hougang ↔ Jurong East	1988	18 December	Integrated with Service 192 and extended to Jurong East Int.
		1990	22 July	Serves additional bus stop outside Ellenborough Mkt along Eu Tong Sen St.
	Hougang South ↔ Jurong East	1994	17 December	Hougang Int renamed to Hougang Sth Int.
		1996	TBC	Serves additional bus stop outside Kallang Stn along Sims Ave.
			TBC	First bus from Jurong East Int brought forward to 0530 hrs on weekdays and Saturdays.
		1997	TBC	Serves the bus stop outside Bugis Stn along Victoria St, skipping the bus stop opposite Bugis Junction.
		1999	20 September	Serves new pair of bus stops outside and opposite West Bay Resort Condo along West Coast Rd.
	51Hougang South ↔ Jurong East 51AJurong East → Pandan Gardens	2002	12 May	Amended to ply Pandan Gdns.
				51AIntroduced from Jurong East Int to Pandan Gdns (Blk 407), operating after the last bus of Service 51 daily.
	51Hougang Ctrl ↔ Jurong East 51AJurong East → Pandan Gardens	2004	15 February	Extended to Hougang Ctrl Int with the closure of Hougang Sth Int.
		2007	22 May	Designated wheelchair-accessible bus service (WAB).
		2009	5 July	Amended to ply Boon Lay Way and Jurong East Ctrl with the closure of Jurong East St 12 to facilitate the Jurong East Modification Project (JEMP).
		2011	17 December	Amended to Jurong East Temp Int.
		2014	27 April	Serves new bus stop outside Queens Condo along Commonwealth Ave.
		2020	6 December	Amended to relocated Jurong East Temp Int and serve new bus stop before Jurong East Stn along Jurong Gateway Rd.

Service 52

1^st Generation (1971 - 1974)

Operator	Route	Year	Date	Service changes
Associated Bus Services	Jln Eunos ↔ Tg Pagar Rd	1971	3 July	Introduced between Jln Eunos Ter and Tg Pagar Rd Ter.
		1973	1 July	Operations transferred to Singapore Bus Services.
		1974	3 February	Discontinued under 1974 Bus Rationalisation.

2^nd Generation (since 2005)

Operator	Route	Year	Date	Service changes
(Current)	Bishan ↔ Jurong East	2005	23 October	Introduced between Bishan Int and Jurong East Int, operating between 0545 hrs and 2345 hrs from Bishan Int and Jurong East Int daily.
		2009	3 December	Designated wheelchair-accessible bus service (WAB).
		2011	17 December	Amended to Jurong East Temp Int.
		2012	9 December	Amended to ply Upp Bt Timah Rd and Bt Timah Lk with the partial closure of Jln Jurong Kechil to facilitate the construction of Beauty World station on the Downtown Line.
		2014	26 January	Amended to ply the reinstated Jln Jurong Kechil, skipping Upp Bt Timah Rd and Bt Timah Lk.
		2018	28 October	Amended to ply southbound Lornie Highway towards Jurong East Temp Int.
		2019	23 June	Amended to ply northbound Lornie Highway towards Bishan Int.
		2020	6 December	Amended to relocated Jurong East Temp Int and serve new bus stop before Jurong East Stn along Jurong Gateway Rd.

Service 53

1^st Generation (1974 - 1983)

Operator	Route	Year	Date	Service changes
	Kaki Bt ↔ Alexandra Rd	1974	3 February	Re-numbered from Service 50A as a service between Kaki Bt Ter and Alexandra Rd (Alexandra Hosp) Ter.
		1975	2 March	Amended to ply Sims Ave towards Kaki Bt Ter with the conversion of Geylang Rd to one-way traffic.
		1978	15 January	Amended to ply Jln Sultan, skipping Sumbawa Rd.
		1983	20 February	Discontinued.

2^nd Generation (since 1994)

Operator	Route	Year	Date	Service changes
(Current) Known as prior to 1 November 2001	Bishan ↺ Hougang Ave 3	1994	10 July	Introduced between Bishan Int and Hougang Ave 3 (Loop).
	Bishan ↺ Changi Airport	1995	23 April	Extended to loop at Changi Airport.
	Bishan ↔ Changi Airport	1996	TBC	Converted to bi-directional service between Bishan Int and Changi Airport PTB1.
			3 September	Amended to ply Pasir Ris Dr 12 and Pasir Ris Dr 1, skipping Elias Rd.
			TBC	First bus from Bishan Int brought forward to 0530 hrs on Sundays and Public Holidays.
		1997	TBC	Serves additional bus stop opposite Fish Farm Rd 2 along Tampines Rd.
		1998	TBC	Serves additional bus stop after Fish Farm Rd 2 along Tampines Rd.
		2000	TBC	Serves new pair of bus stops outside and opposite SATS Flight Kitchen along Airport Blvd.
		2003	21 June	Amended to ply Serangoon Ctrl and Upp Serangoon Rd under North East Line Rationalisation Phase 1.
			TBC	Serves new bus stop outside Serangoon Stn along Serangoon Ctrl.
		2007	23 June	Amended to ply Tampines Svc Rd.
			11 November	Amended to serve Changi Airport PTB3.
		2009	26 October	Designated wheelchair-accessible bus service (WAB).
	Bishan ↺ Changi Airport	2012	9 January	Converted to loop service between Bishan Int and Changi Airport PTB2.
	53Bishan ↺ Changi Airport 53AHougang Ave 1 → Serangoon Ctrl 53BSerangoon Ctrl → Hougang Ave 1		27 February	53AIntroduced from Hougang Ave 1 (Opp Blk 232) to Serangoon Ctrl (Blk 261) during morning peak hours on weekdays. Wheelchair-accessible bus service (WAB) at launch.
				53BIntroduced from Serangoon Ctrl (Blk 206) to Hougang Ave 1 (Blk 232) during evening peak hours on weekdays. Wheelchair-accessible bus service (WAB) at launch.
			29 April	Serves new bus stop outside Blk 612 along Pasir Ris Dr 1.
	Bishan ↺ Changi Airport	2015	16 August	53ADiscontinued with the introduction of Service 53M.
				53BDiscontinued with the introduction of Service 53M.
	53Bishan ↺ Changi Airport 53APasir Ris Dr 1 → Changi Airport	2016	1 September	53AIntroduced from Pasir Ris Dr 1 (Blk 738) to Changi Airport PTB2 during morning peak hours on weekdays. Wheelchair-accessible bus service (WAB) at launch.
		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	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.

Service 53M

Operator	Route	Year	Date	Service changes
(Current)	Hougang Ave 1 ↺ Serangoon Ctrl	2015	16 August	Introduced between Hougang Ave 1 (Opp Blk 232) and Serangoon Ctrl (Loop) under the LTA's Bus Service Enhancement Programme (BSEP). Wheelchair-accessible bus service (WAB) at launch.
		2016	24 January	Serves additional bus stop outside Blk 209 along Boundary Rd.
	Hougang St 21 ↺ Serangoon Ctrl	2025	26 October	Extended to Hougang St 21 (Kovan Hub).

Service 54

1^st Generation (1985 - 1987)

Operator	Route	Year	Date	Service changes
	Hougang ↺ Jln Eunos	1985	29 December	Introduced between Hougang Int and Jln Eunos (Loop).
		1987	22 March	Integrated with Service 51 and discontinued.

2^nd Generation (since 1993)

Operator	Route	Year	Date	Service changes
(Current) Known as prior to 1 November 2001	Bishan ↔ New Bridge Rd	1993	5 December	Introduced between Bishan Int and New Bridge Rd Ter with the integration of Services 104 and 134 under TransitLink Network Integration Exercise Phase 14.
		1994	TBC	Last bus from New Bridge Rd Ter revised to 2330 hrs daily.
		1997	TBC	First bus from Bishan Int brought forward to 0545 hrs on weekdays.
			7 December	Amended to ply Upp Pickering St, Sth Bridge Rd and Kreta Ayer Rd with the partial closure of New Bridge Rd to facilitate the construction of Chinatown station on the North East Line.
		2000	20 February	Serves additional bus stop opposite Blk 333 along Kreta Ayer Rd.
			TBC	Last bus from New Bridge Rd Ter extended to 2400 hrs on Saturdays.
	54Bishan ↔ New Bridge Rd 54ABishan St 22 → Bishan Rd	2001	TBC	54AIntroduced from Bishan St 22 (Blk 245) to Bishan Rd (Bishan Stn) during morning peak hours on weekdays.
		2002	20 April	Amended to ply the reinstated New Bridge Rd, skipping Upp Pickering St, Sth Bridge Rd and Kreta Ayer Rd.
	Bishan ↔ New Bridge Rd	2004	TBC	54ADiscontinued.
		2006	5 November	Amended to ply Bishan St 13 and Bishan St 11.
		2009	3 December	Designated wheelchair-accessible bus service (WAB).
	Bishan ↔ Kampong Bahru	2018	10 March	Extended to Kg Bahru Ter with the closure of New Bridge Rd Ter.
				First bus from Kg Bahru Ter brought forward to 0610 hrs daily.
		2020	8 November	Skips the bus stop opposite SLF Cplx along Thomson Rd to facilitate the construction of the North-South Corridor (NSC).
		2023	8 January	Skips the bus stop outside Newton Stn Exit B along Scotts Rd temporarily to facilitate upgrading works.
			27 August	Serves reinstated bus stop outside Newton Stn Exit B along Scotts Rd.
		2025	9 March	Serves additional bus stop outside Outram Pk Stn Exit 4 along New Bridge Rd.

Service 55

1^st Generation (1980 - 1988)

Operator	Route	Year	Date	Service changes
	South Canal ↺ Alexandra Rd	1980	11 February	Introduced between Sth Canal Ter and Alexandra Rd (Loop).
	South Canal ↺ Mei Chin Rd		9 March	Amended to loop at Mei Chin Rd.
			23 November	Amended to ply Leng Kee Rd and Tiong Bahru Rd.
		1984	30 December	Amended to ply Alexandra Rd, skipping Leng Kee Rd.
		1988	18 December	Integrated with Service 195 and discontinued.

2^nd Generation (since 1992)

Operator	Route	Year	Date	Service changes
(Current) Known as prior to 1 November 2001	Ang Mo Kio ↔ Marine Parade	1992	29 November	Introduced between Ang Mo Kio Int and Marine Parade Ter under TransitLink Network Integration Exercise Phase 10.
	Bishan ↔ Marine Parade	1994	16 January	Extended to Bishan Int.
	55Bishan ↺ Siglap Rd 55ABishan → Siglap Rd	2001	16 September	Amended to loop at Siglap Rd from Bishan Int with the closure of Marine Parade Ter.
				55AIntroduced from Bishan Int to Siglap Rd (Opp Mandarin Gdns) as terminating trips after the last bus of Service 55 daily.
		2003	TBC	Serves new bus stop outside Victoria Sch along Marine Parade Rd.
	55Bishan ↺ Siglap Rd 55ABishan → Marine Parade Rd	2005	25 April	55AExtended to terminate at Marine Parade Rd (Victoria Sch).
		2011	7 March	Designated wheelchair-accessible bus service (WAB).
	55Bishan ↺ Siglap Rd 55ABishan → Marine Parade Rd 55BBishan → Ang Mo Kio Ave 10	2013	25 November	55BIntroduced from Bishan Int to Ang Mo Kio Ave 10 (Blk 443) during evening peak hours on weekdays. Wheelchair-accessible bus service (WAB) at launch.
	55Bishan ↔ Upp East Coast 55BBishan → Ang Mo Kio Ave 10	2017	9 April	55Extended to Upp East Coast Ter.
				55ADiscontinued with the extension of Service 55 to Upp East Coast Ter.
		2025	31 August	Skips bus stop outside Kew Green Condo along Upp East Coast Rd.

Service 56

Operator	Route	Year	Date	Service changes
(Current) Known as prior to 1 November 2001	Bishan St 11 ↺ Toa Payoh	1985	22 December	Introduced between Bishan St 11 and Toa Payoh Int (Loop).
	Bishan ↺ Toa Payoh	1986	28 December	Amended to Bishan Ter.
		1987	16 March	First bus from Bishan Ter brought forward to 0545 hrs daily.
		1989	30 April	Amended to Bishan Int.
	Bishan ↔ Marina Ctr	1990	2 September	Integrated with Services 58 and 150 and extended to Marina Ctr Ter.
		2000	TBC	Last bus from Marina Ctr Ter extended to 0015 hrs on Saturdays.
		2001	18 February	Serves new staggered bus stop outside Novena Stn along Thomson Rd, skipping the bus stop outside Novena Ch.
		2005	TBC	Skips removed bus stop outside Muhajirin Mque along Braddell Rd.
		2012	30 September	Designated wheelchair-accessible bus service (WAB).
		2021	27 February	Amended to the relocated Marina Ctr Ter.

Service 57

1^st Generation (1983 - 1987)

Operator	Route	Year	Date	Service changes
	Buona Vista ↔ Changi Airport	1983	25 June	Introduced between Buona Vista Ter and Changi Airport as a peak hour service on weekdays & Saturdays under Changi Airport Bus Plan 1983, replacing former SSB Service 757.
		1987	6 April	Skips removed bus stop before College Rd along Outram Rd.
			19 April	Discontinued.

2^nd Generation (1988 - 1992)

Operator	Route	Year	Date	Service changes
	Bishan ↺ Sin Ming Dr	1988	22 August	Introduced between Bishan Ter and Sin Ming Dr (Loop), replacing Service 353.
			20 November	Amended to ply Sin Ming Rd, Sin Ming Dr, Sin Ming Ave and Upp Thomson Rd in both directions.
		1989	30 April	Amended to Bishan Int.
		1990	21 February	Skips removed bus stop opposite Jasmine Rd along Upp Thomson Rd.
		1992	3 May	Discontinued under TransitLink Network Integration Exercise Phase 7 with the introduction of Townlink Service 410G/410W.

3^rd Generation (since 2005)

Operator	Route	Year	Date	Service changes
(Current)	Bishan ↔ Bukit Merah	2005	31 July	Introduced between Bishan Int and Bt Merah Int, operating between 0600 hrs and 2330 hrs from Bishan Int daily, and between 0545 hrs and 2400 hrs from Bt Merah Int daily.
			2 October	Serves new bus stop outside New 7th Storey Hotel along Rochor Rd.
		2006	29 October	Serves new bus stop outside VivoCity along Telok Blangah Rd.
		2007	21 January	Amended to ply Thomson Rd, Kg Java Rd and Keng Lee Rd, skipping Whitley Rd/PIE and Dunearn Rd.
			24 June	Serves new bus stop outside Blk 114 along Depot Rd.
		2008	7 December	Skips removed bus stop opposite Temenggong D Mque along Telok Blangah Rd.
		2009	3 December	Designated wheelchair-accessible bus service (WAB).

Service 58

1^st Generation (1987 - 1990)

Operator	Route	Year	Date	Service changes
	Bishan ↺ Marina Ctr	1987	18 January	Introduced between Bishan Ter and Marina Ctr (Loop).
		1989	30 April	Amended to Bishan Int.
		1990	2 September	Integrated with Service 56 and discontinued.

2^nd Generation (since 2005)

Operator	Route	Year	Date	Service changes
(Current)	Bishan ↔ Pasir Ris	2005	31 July	Introduced between Bishan Int and Pasir Ris Int, operating between 0530 hrs and 2400 hrs from Bishan Int and Pasir Ris Int daily.
		2011	28 August	Amended to ply Jln Tenaga, Bedok Reservoir Rd and Jln Damai with the partial closure of Kaki Bt Ave 1 to facilitate the construction of Kaki Bukit station on the Downtown Line.
		2012	26 March	Designated wheelchair-accessible bus service (WAB).
		2013	22 September	Serves new bus stop outside Wisma AUPE along Upp Paya Lebar Rd.
		2016	24 April	Amended to ply the reinstated Kaki Bt Ave 1, skipping Jln Tenaga, Bedok Reservoir Rd and Jln Damai.
	58Bishan ↔ Pasir Ris 58AUpp Serangoon Rd → Tampines Ave 10 58BPasir Ris → Upp Paya Lebar Rd	2017	10 April	58AIntroduced from Upp Serangoon Rd (Serangoon Stn Exit H) to Tampines Ave 10 (Bef TPE) during peak hours on weekdays. Wheelchair-accessible bus service (WAB) at launch.
				58BIntroduced from Pasir Ris Int to Upp Paya Lebar Rd (Aft Tai Seng Stn) during peak hours on weekdays. Wheelchair-accessible bus service (WAB) at launch.
			28 May	Serves 2 new pairs of bus stops after Tampines Ave 5, before Tampines Fire Stn, outside The Santorini and after Tampines Ave 1 along Tampines Ave 10.
		2022	27 November	Serves new pair of bus stops outside and opposite HomeTeamNS Bedok along Bedok Nth Rd.
		2025	27 April	Amended to Pasir Ris Integrated Transport Hub.

Service 59

1^st Generation (1988 - 1999)

Operator	Route	Year	Date	Service changes
	Bishan ↔ Jln Kayu	1988	10 July	Introduced between Bishan Ter and Jln Kayu Ter.
		1989	30 April	Amended to Bishan Int.
	Ang Mo Kio ↺ Jln Kayu	1992	3 May	Shortened to Ang Mo Kio Int and amended to loop at Jln Kayu under TransitLink Network Integration Exercise Phase 7.
		1995	17 December	Operations transferred to Trans Island Bus Services. Amended to start from Jln Kayu Ter and loop at Ang Mo Kio Int.
		1998	TBC	Skips a pair of temporarily closed bus stops before and after Seletar West Farmway 1 along Jln Kayu.
		1999	21 February	Extended to Sengkang Ter and re-numbered Service 866.

2^nd Generation (since 2005)

Operator	Route	Year	Date	Service changes
(Current)	Bishan ↔ Changi Village	2005	23 October	Introduced between Bishan Int and Changi Village Ter, operating between 0600 hrs and 2330 hrs from Bishan Int and Changi Village Ter daily.
		2006	TBC	First bus from Bishan Int brought forward to 0545 hrs on weekdays.
		2010	28 June	Designated wheelchair-accessible bus service (WAB).
		2011	28 August	Amended to ply Jln Tenaga, Bedok Reservoir Rd and Jln Damai with the partial closure of Kaki Bt Ave 1 to facilitate the construction of Kaki Bukit station on the Downtown Line.
		2016	24 April	Amended to ply the reinstated Kaki Bt Ave 1, skipping Jln Tenaga, Bedok Reservoir Rd and Jln Damai.
		2017	21 October	Serves new pair of bus stops outside Tampines East Stn along Tampines Ave 2.
		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.
		2025	26 October	Serves a new pair of bus stops in front of and opposite Blk 961A along Bedok Reservoir Rd.

See also

• History of Bus Services