History of Services 81 - 90

Service 81

Operator	Year	Date	Service changes
Associated Bus Service	1971	11 April	Introduced between Upp Changi Ter and New Bridge Rd Ter under 1971 Bus Reorganisation.
	1972	18 June	Amended to ply Bendemeer Rd towards New Bridge Rd Ter with the conversion of Serangoon Rd to one-way traffic.
	1974	1 October	Serves merged bus stop outside Sri Srinivasa Perumal Tp along Serangoon Rd.
	1986	11 May	Amended to skip Kuala Loyang Rd.
		1 September	Skips a pair of abolished bus stops along Tampines Rd to facilitate the construction of TPE.
		23 December	Serves merged bus stop along the new carriageway of Tampines Rd.
	1987	6 June	Amended to the relocated New Bridge Rd Ter.
		20 September	Skips 6 pairs of abolished bus stops along Tampines Rd with the opening of TPE.
		27 September	Amended to ply the extended Eu Tong Sen St towards Upp Changi Rd Ter to facilitate the first stage of road expansion along New Bridge Rd.
		1 November	Amended to ply Eu Tong Sen St towards Upp Changi Rd Ter to facilitate the second stage of road expansion along New Bridge Rd.
		13 December	Serves new staggered bus stop opposite Peninsula Plaza along North Bridge Rd, skipping the bus stop outside St Andrew's Cathedral.
	1988	23 October	Extended to Tampines Int.
	1989	29 January	Serves relocated bus stop opposite Sri Mariamman Tp along South Bridge Rd, skipping abolished bus stop opposite Jamae Mosque.
		30 July	Amended to ply Loyang Ave, Pasir Ris Dr 1 and Elias Rd, skipping Tampines Expressway (TPE).
		28 August	Serves new pair of bus stops outside and opposite Pasir Ris Gardens along Elias Rd.
	1993	11 April	Amended to ply Victoria St, Hill St and New Bridge Rd, skipping North Bridge Rd, South Bridge Rd and Neil Rd.
	1996	3 September	Amended to ply Pasir Ris Dr 12 and Pasir Ris Dr 1, skipping Elias Rd.
	1997	7 December	Amended to ply Upp Pickering St, South Bridge Rd and Kreta Ayer Rd with the partial closure of New Bridge Rd to facilitate the construction of Chinatown MRT station on the North East MRT Line.
	1999	10 July	Amended to ply Middle Rd and Victoria St, skipping Waterloo St, Stamford Rd and Bras Basah Rd.
Template:SBS Transit (Current)	2002	20 April	Amended back to ply the reinstated New Bridge Rd, skipping Upp Pickering St, South Bridge Rd and Kreta Ayer Rd.
		TBC	Calls at a new pair of bus stops after Sommerville Rd and after Sunshine Lodge along Upp Serangoon Rd.
	2003	20 June	Calls at a new pair of bus stops outside Potong Pasir Stn along Upp Serangoon Rd.
		27 July	Shortened to Serangoon Int and amended to ply Hougang Ave 3 and Upp Serangoon Rd under North East MRT Line Rationalisation Phase 2.
	2007	23 June	Amended to ply Tampines Service Rd.
	2011	3 September	Amended to loop at Serangoon Central with the opening of Serangoon Integrated Transport Hub.
	2012	29 April	Serves new bus stop outside Blk 612 along Pasir Ris Dr 1.
	2017	21 August	Designated wheelchair-accessible bus service (WAB).

Service 81A

Operator	Year	Date	Service changes
Associated Bus Service	1971	11 April	Introduced between Upp Serangoon Rd 10.5 km Ter and New Bridge Rd Ter under 1971 Bus Reorganisation.
	1972	18 June	Amended to ply Bendemeer Rd towards New Bridge Rd Ter with the conversion of Serangoon Rd to one-way traffic.
	1974	3 February	Amended to skip Jln Besar, Bencoolen St and Bras Basah Rd and re-numbered Service 85 under 1974 Bus Rationalisation.

Service 82

Operator	Year	Date	Service changes
Associated Bus Service	1971	11 April	Introduced between Punggol Ter and Prince Edward Ter under 1971 Bus Reorganisation.
	1972	18 June	Amended to ply Bendemeer Rd towards Prince Edward Ter with the conversion of Serangoon Rd to one-way traffic.
	1974	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.
	1978	15 January	Amended to ply Jln Sultan, skipping Sumbawa Rd.
	1987	28 June	Amended to Shenton Way Ter.
	1990	24 June	Serves additional bus stop opposite Hong Wen Sch along Victoria St.
	1992	29 March	Amended to ply Hougang Ave 10 and Hougang Ave 2 under TransitLink Network Integration Exercise Phase 6, skipping Hougang Ave 8.
	1994	3 July	Amended to ply Crawford St towards Punggol Ter.
	1995	17 December	Operations transferred to Trans-Island Bus Service (TIBS).
	1998	TBC	Skips 2 pairs of abolished bus stops outside and opposite Punggol Mkt and opposite and after Lor Cheng Lim along Punggol Rd.
	1999	29 August	Operations transferred to SBS.
		TBC	Skips abolished bus stop opposite St. Anne's Ch along Punggol Rd.
		5 December	Serves new pair of bus stops outside Blk 190C and outside Blk 298A along Punggol Rd.
	2000	TBC	Serves new bus stop after Shenton Way along Palmer Rd.
Template:SBS Transit	2002	TBC	Calls at a new pair of bus stops after Sommerville Rd and after Sunshine Lodge along Upp Serangoon Rd.
	2003	20 June	Serves new pair of bus stops outside Potong Pasir Stn along Upp Serangoon Rd.
		TBC	Skips temporarily abolished bus stop opposite Punggol Port Rd along Punggol Rd.
		7 December	Amended to start from Serangoon Int, loop at Punggol Rd and amended to ply Punggol Field, Punggol Pl and Punggol Central under North East MRT Line Rationalisation Phase 3.
	2010	5 December	Serves reinstated bus stop outside Blk 604A along Punggol Rd.
	2011	3 September	Amended to start from Punggol Temp Int and loop at Serangoon Central with the opening of Serangoon Integrated Transport Hub.
	2013	31 March	Designated wheelchair-accessible bus service (WAB).
Template:Go-Ahead Singapore (Current)	2016	4 September	Operations transferred to Go-Ahead Singapore.

Service 82A

Operator	Year	Date	Service changes
Template:SBS Transit	2003	7 December	Introduced as a short-trip service from Serangoon Int to Punggol Rd (Punggol Rd End), operating after the last bus of Service 82 daily.
	2004	TBC	Shortened to terminate at Punggol Central (Opp Blk 293).
	2011	3 September	Withdrawn with the route amendment of Service 82 to start from Punggol Temp Int and loop at Serangoon Central.

Service 83

Operator	Service Gen	Year	Date	Service changes
Associated Bus Service	1st Gen (1971 - 1992)	1971	11 April	Introduced between Punggol Ter and New Bridge Rd Ter under 1971 Bus Reorganisation.
		1972	18 June	Amended to ply Bendemeer Rd towards New Bridge Rd Ter with the conversion of Serangoon Rd to one-way traffic.
		1974	1 October	Serves merged bus stop outside Sri Srinivasa Perumal Tp along Serangoon Rd.
		1987	6 June	Amended to the relocated New Bridge Rd Ter.
			27 September	Amended to ply the extended Eu Tong Sen St towards Punggol Rd Ter to facilitate the first stage of road expansion along New Bridge Rd.
			1 November	Amended to ply Eu Tong Sen St towards Punggol Rd Ter to facilitate the second stage of road expansion along New Bridge Rd.
			13 December	Serves new staggered bus stop opposite Peninsula Plaza along North Bridge Rd, skipping the bus stop outside St Andrew's Cathedral.
		1988	20 March	Amended to ply Upp Cross St and New Bridge Rd, skipping Neil Rd.
		1990	2 September	Integrated with Service 101 and amended to ply Hougang Ave 8, Hougang Ave 2, Yio Chu Kang Link, Yio Chu Kang Rd and Serangoon Central.
		1992	29 March	Integrated with Service 147 and withdrawn under TransitLink Network Integration Exercise Phase 6.
Template:SBS Transit	2nd Gen (Since 2001)	2001	23 December	Re-introduced between Sengkang Int and Punggol Field (Loop).
		2003	18 January	Amended to Sengkang Integrated Transport Hub.
			9 February	Amended to ply Sengkang East Rd and Compassvale St, skipping Compassvale Rd.
			4 May	Amended to loop at Edgedale Plains temporarily.
			20 June	Extended to loop at Punggol Central with the opening of Punggol MRT station on the North East MRT Line.
			30 November	Amended to start from Punggol Temp Int and loop at Sengkang Integrated Transport Hub.
		2014	29 June	Designated wheelchair-accessible bus service (WAB).
Template:Go-Ahead Singapore (Current)		2016	4 September	Operations transferred to Go-Ahead Singapore.

Service 83A

Operator	Year	Date	Service changes
Template:SBS Transit	2006	TBC	Introduced as a short-trip service from Punggol Temp Int to Sengkang Integrated Transport Hub, operating after the last bus of Service 83 daily.
	2009	TBC	Withdrawn.

Service 84

Operator	Service Gen	Year	Date	Service changes
Associated Bus Service	1st Gen (1971 - 1999)	1971	3 July	Introduced between Upp Serangoon Ter and Upp Cross St (Loop).
		1974	3 February	Extended to Tg Pagar Ter under 1974 Bus Rationalisation.
		1975	2 March	Amended to ply Sims Ave towards Upp Serangoon Rd End Ter with the conversion of Geylang Rd to one-way traffic.
		1980	20 January	Amended to Anson Rd Ter.
		1982	13 June	Amended to ply Aljunied Way and Aljunied Rd.
		1985	13 January	Extended to World Trade Ctr Ter.
		1987	27 September	Amended to ply the extended Eu Tong Sen St towards Upp Serangoon Rd Ter to facilitate the first stage of road expansion along New Bridge Rd.
			1 November	Amended to ply Eu Tong Sen St towards Upp Serangoon Rd Ter to facilitate the second stage of road expansion along New Bridge Rd.
			13 December	Serves new staggered bus stop opposite Peninsula Plaza along North Bridge Rd, skipping the bus stop outside St Andrew's Cathedral.
		1990	22 July	Serves additional bus stop outside Ellenborough Market along Eu Tong Sen St.
		1994	17 December	Amended to Hougang Central Int.
		1996	TBC	Serves additional bus stop outside Kallang Stn along Sims Ave.
		1998	24 May	Amended to temporary site of Hougang Central Int.
		1999	12 December	Integrated with Service 864 to form Service 80 and withdrawn.
Template:SBS Transit	2nd Gen (2003 - 2005)	2003	15 September	Re-introduced between Punggol Central and Punggol East (Loop) as a peak hour one-directional service, operating on weekdays and Saturdays only.
			30 November	Amended to Punggol Temp Int.
		2005	12 March	Withdrawn under Punggol East LRT Rationalisation.
	3rd Gen (Since 2011)	2011	3 September	Re-introduced between Punggol Temp Int and Punggol Rd (Loop), replacing the deleted sectors of Service 82.
Template:Go-Ahead Singapore (Current)		2016	4 September	Operations transferred to Go-Ahead Singapore.
		2017	16 July	Designated wheelchair-accessible bus service (WAB).
		2018	26 August	Amended to ply Punggol Dr, Sentul Cres, Sumang Link and Punggol Way with the partial closure of Punggol Rd.
		2020	23 February	Amended to ply Northshore Cres and Northshore Dr with the partial closure of Punggol Way and Punggol Rd.

Service 85

Operator	Service Gen	Year	Date	Service changes
	1st Gen (1974 - 1991)	1974	3 February	Re-numbered from Service 81A as a service between Upp Serangoon Rd 10.5 km Ter and New Bridge Rd Ter under 1974 Bus Rationalisation.
		1977	31 January	Amended to ply Jln Kolam Ayer and Kallang Bahru and shortened to loop at Sims Ave.
		1982	11 June	Amended to ply Bendemeer Rd and Geylang Bahru, skipping Jln Kolam Ayer.
		1983	30 October	Amended to Hougang Int.
		1991	6 January	Withdrawn under TransitLink Network Integration Exercise Phase 1.
	2nd Gen (1999 - 2003)	1999	5 December	Re-numbered from Service 865 as a service between Sengkang Ter and World Trade Ctr Ter.
		2001	28 April	Amended to temporary site of Sengkang Int.
Template:SBS Transit		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	18 January	Amended to Sengkang Integrated Transport Hub.
			20 June	Serves new pair of bus stops outside Potong Pasir Stn along Upp Serangoon Rd.
			27 July	Withdrawn under North East MRT Line Rationalisation Phase 2.
	3rd Gen (Since 2006)	2006	1 January	Re-introduced between Punggol Temp Int and Yishun Int.
		2010	23 May	Amended to ply Sengkang East Way, Sengkang West Way and Jln Kayu, except during weekday morning peak hours towards Yishun Int.
		2011	31 July	Serves 3 new pairs of bus stops before and after Fernvale Link, outside and opposite Blk 432A, before Jln Kayu and after Lor Tanggam along Sengkang West Way.
		2012	19 November	Amended to ply Sengkang East Way, Sengkang West Way and Jln Kayu permanently.
		2013	9 June	Designated wheelchair-accessible bus service (WAB).
		2015	14 March	Amended to Yishun Temp Int.
Template:Go-Ahead Singapore (Current)		2016	4 September	Operations transferred to Go-Ahead Singapore.
			25 September	Serves new pair of bus stops outside Waterwoods and after Punggol Field along Punggol East.
		2019	8 September	Amended to Yishun Integrated Transport Hub.

Service 85#

Operator	Year	Date	Service changes
Template:SBS Transit	2010	23 May	Introduced between Punggol Temp Int and Yishun Int, plying the original route of Service 85 via Sengkang East Rd during weekday morning peak hours.
	2012	19 November	Withdrawn with the permanent route amendment of Service 85 to Sengkang East Way, Sengkang West Way and Jln Kayu.

Service 85A

Operator	Service Gen	Year	Date	Service changes
	1st Gen (2000 - 2003)	2000	TBC	Introduced as a short-trip service from Sengkang Ter to Upp Serangoon Rd (Blk 205) during morning peak hours on weekdays.
		2001	28 April	Amended to temporary site of Sengkang Int.
Template:SBS Transit		2003	18 January	Amended to Sengkang Integrated Transport Hub.
			27 July	Withdrawn under North East MRT Line Rationalisation Phase 2.
Template:Go-Ahead Singapore (Current)	2nd Gen (Since 2019)	2019	25 March	Re-introduced as a short-trip service from Yishun Temp Int to Sengkang East Rd (Sengkang Community Hub) during evening peak hours on weekdays. Wheelchair-accessible at launch.
			8 September	Amended to Yishun Integrated Transport Hub.

Service 85B

Operator	Year	Date	Service changes
	2000	TBC	Introduced as a short-trip service from Sengkang Ter to Jln Besar (Bef Sim Lim Twr) on Saturdays, Sundays and Public Holidays.
	2001	28 April	Amended to temporary site of Sengkang Int.
Template:SBS Transit	2002	TBC	Serves new bus stop after Sunshine Lodge along Upp Serangoon Rd.
	2003	18 January	Amended to Sengkang Integrated Transport Hub.
		20 June	Serves new bus stop outside Potong Pasir Stn along Upp Serangoon Rd.
		27 July	Withdrawn under North East MRT Line Rationalisation Phase 2.

Service 86

Operator	Service Gen	Year	Date	Service changes
	1st Gen (1977 - 1983)	1977	13 June	Introduced between Tampines Way Ter and Shenton Way (Loop) as a semi-express service operating on weekdays and Saturdays only.
		1979	11 February	Amended to ply the extended Shenton Way, Keppel Rd and Anson Rd, skipping Parsi Rd.
		1981	11 October	Serves new staggered bus stop outside Tunas Bldg along Anson Rd, skipping the bus stop outside Intl Plaza.
		1983	30 October	Amended to Hougang Int.
			18 December	Integrated with Service 97 and withdrawn.
	2nd Gen (Since 1999)	1999	5 December	Re-numbered from Service 866 as a service between Sengkang Ter and Ang Mo Kio Int.
		2001	28 April	Amended to temporary site of Sengkang Int.
Template:SBS Transit (Current)		2002	24 March	Amended to Ang Mo Kio Temp Int.
			TBC	Serves reinstated pair of bus stops before and after Sengkang West Ave along Jln Kayu.
		2003	18 January	Amended to Sengkang Integrated Transport Hub.
			9 February	Amended to ply Compassvale Dr, skipping Punggol Rd and Sengkang East Ave.
		2007	28 April	Amended to Ang Mo Kio Integrated Transport Hub.
		2010	2 December	Designated wheelchair-accessible bus service (WAB).
		2013	13 October	Amended to ply Sengkang West Ave and Sengkang West Rd with the partial closure of Jln Kayu.

Service 86A

Operator	Year	Date	Service changes
Template:SBS Transit	2002	TBC	Introduced as a short-trip service from Ang Mo Kio Temp Int to Jln Kayu (Bef Seletar Camp G) during morning peak hours on weekdays.
	2007	28 April	Amended to Ang Mo Kio Integrated Transport Hub.
	2010	TBC	Withdrawn.

Service 87

Operator	Year	Date	Service changes
	1999	19 September	Introduced between Sengkang Ter and Bedok Int.
	2001	28 April	Amended to temporary site of Sengkang Int.
Template:SBS Transit (Current)	2003	18 January	Amended to Sengkang Integrated Transport Hub.
		20 June	Serves new bus stop opposite Hougang Central Int along Hougang Central.
	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 MRT station on the Downtown MRT Line.
		19 November	Amended to Bedok Temp Int.
		3 December	Designated wheelchair-accessible bus service (WAB).
	2014	30 November	Amended to Bedok Integrated Transport Hub.
	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 bus stop outside Bedok North Stn along Bedok North Rd.

Service 88

Operator	Year	Date	Service changes
	1999	28 February	Introduced between Pasir Ris Int and Toa Payoh Int.
		TBC	Skips abolished bus stop opposite St. Anne's Ch along Punggol Rd.
		5 December	Serves new pair of bus stops outside Blk 190C and outside Blk 298A along Punggol Rd.
Template:SBS Transit (Current)	2002	19 May	Amended to Toa Payoh Integrated Transport Hub.
	2005	TBC	Skips abolished bus stop outside Muhajirin Mosque along Braddell Rd.
	2013	9 June	Designated wheelchair-accessible bus service (WAB).
	2014	24 August	Serves new pair of bus stops before and after Punggol Rd along TPE.

Service 88A

Operator	Service Gen	Year	Date	Service changes
	1st Gen (2000 - 2006)	2000	TBC	Introduced as a short-trip service from Punggol Rd (St. Anne's Ch) to Ang Mo Kio Ave 3 (Opp Ang Mo Kio Stn) during morning peak hours on weekdays.
Template:SBS Transit (Current)		2004	TBC	Withdrawn.
	2nd Gen (Since 2012)	2012	8 October	Re-introduced as a short-trip service from Punggol Rd (Blk 190C) to Ang Mo Kio Ave 3 (Opp Ang Mo Kio Stn) during morning peak hours on weekdays.
		2013	9 June	Designated wheelchair-accessible bus service (WAB).

Service 88B

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2012	8 October	Introduced as a short-trip service from Ang Mo Kio Ave 6 (Blk 207) to Ang Mo Kio Ave 5 (Bef Yio Chu Kang Rd) during morning peak hours on weekdays.
	2013	9 June	Designated wheelchair-accessible bus service (WAB).

Service 89

Operator	Year	Date	Service changes
	1999	5 December	Introduced between Hougang Central Int and Changi Airport Cargo Complex (Loop).
	2001	20 May	Amended to original site of Hougang Central Int.
Template:SBS Transit (Current)		21 November	Convert from partial air-con to fully air-con.
	2003	TBC	Serves new pair of bus stops outside and opposite Loyang Ind Est along Loyang Ave.
	2008	TBC	Serves new bus stop outside Changi Beach CP 2 along Nicoll Dr, skipping the bus stop opposite Changi Beach CP 2.
	2012	29 April	Serves new bus stop outside Blk 612 along Pasir Ris Dr 1.
	2014	24 August	Serves new pair of bus stops before and after Punggol Rd along TPE.
	2015	22 June	Designated wheelchair-accessible bus service (WAB).

Service 89A

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2017	10 April	Introduced as a short-trip service from Pasir Ris Dr 1 (Blk 738) to Airport Cargo Rd (AirFreight Ter Bldg) during morning peak hours on weekdays. Wheelchair-accessible at launch.

Service 90

Operator	Service Gen	Year	Date	Service changes
Amalgamated Bus Company	1st Gen (1971 - 1989)	1971	11 April	Introduced between Jln Ang Teng Ter and Jln Bt Merah Ter under 1971 Bus Reorganisation.
			14 September	Extended to Commonwealth Ave Ter.
		1974	3 February	Amended to ply MacPherson Rd and Aljunied Rd under 1974 Bus Rationalisation, skipping Paya Lebar Rd.
		1975	2 March	Amended to ply Sims Ave towards Jln Ang Teng Ter with the conversion of Geylang Rd to one-way traffic.
		1981	30 June	Amended to loop at Airport Rd with the closure of Jln Ang Teng Ter.
		1982	TBC	Amended to Buona Vista Ter.
		1987	6 April	Skips abolished bus stop before College Rd along Outram Rd.
			27 September	Amended to ply the extended Eu Tong Sen St towards Airport Rd 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.
		1988	20 March	Amended to ply Upp Cross St and New Bridge Rd, skipping Neil Rd.
		1989	5 November	Withdrawn.
	2nd Gen (Since 1993)	1993	23 May	Re-introduced between Toa Payoh Int and Airport Rd (Loop) under TransitLink Network Integration Exercise Phase 13.
		1994	5 March	Amended to ply Kim Keat Link and Lor 6 Toa Payoh towards Toa Payoh Int.
		1998	31 May	Amended to temporary site of Toa Payoh Int.
				Serves new pair of bus stops outside and opposite Toa Payoh Swim Cplx along Lor 6 Toa Payoh.
Template:SBS Transit (Current)		2002	19 May	Amended to Toa Payoh Integrated Transport Hub.
		2007	TBC	Skips abolished bus stop before Paya Lebar Rd along Airport Rd to facilitate the construction of KPE.
		2008	TBC	Serves new bus stop after Defu Lane 12 along Airport Rd.
			24 September	Skips abolished bus stop outside KB Warehouse Complex along Airport Rd.
		2011	4 September	Amended to skip Bendemeer Rd, Whampoa North and Serangoon Rd towards Toa Payoh Integrated Transport Hub with the permanent closure of Whampoa North.
		2013	3 December	Designated wheelchair-accessible bus service (WAB).

Service 90A

Operator	Year	Date	Service changes
	2000	TBC	Introduced as a short-trip service from Toa Payoh Int to Airport Rd (RSAF Paya Lebar) during morning peak hours on weekdays and Saturdays.
Template:SBS Transit (Current)	2002	19 May	Amended to Toa Payoh Integrated Transport Hub.
	2005	TBC	Extended to terminate at Airport Rd (KB Warehouse Cplx).
	2007	TBC	Skips abolished bus stop before Paya Lebar Rd along Airport Rd to facilitate the construction of KPE.
	2008	TBC	Serves new bus stop after Defu Lane 12 along Airport Rd.
		24 September	Shortened to terminate at Airport Rd (Paya Lebar Air Base) with the abolition of the bus stop outside KB Warehouse Cplx.
	2013	3 December	Designated wheelchair-accessible bus service (WAB).