History of Services 980 - 989

Service 980

Operator	Route	Year	Date	Service changes
Known as prior to 10 May 2004	Admiralty Rd West ↔ Lor 1 Geylang	1998	27 December	Re-numbered from Service 160 as a service between Admiralty Rd West Ter and Lor 1 Geylang Ter.
		1999	TBC	Serves new pair of bus stops before Sembawang Stn and after Admiralty Country Club along Canberra Rd.
		2001	18 February	Serves the bus stop outside Novena Stn along Thomson Rd, skipping the bus stop outside Novena Ch.
	Sembawang ↔ Lor 1 Geylang	2005	20 November	Amended to Sembawang Int.
		2006	TBC	Last bus from Lor 1 Geylang Ter brought forward to 2330 hrs on Sundays & Public Holidays.
			3 December	Amended to ply Sembawang Dr, Admiralty Dr and Canberra Rd.
		2007	TBC	First bus from Lor 1 Geylang Ter revised to 0600 hrs daily.
		2012	15 November	Designated wheelchair-accessible bus service (WAB).
		2019	22 December	Serves new bus stop before Adana @ Thomson along Upp Thomson Rd.
		2020	8 November	Skips the bus stop opposite SLF Cplx along Thomson Rd to facilitate the construction of the North-South Corridor (NSC).
(Current)		2021	3 October	Operations transferred to Tower Transit Singapore.
		2023	17 December	First bus from Sembawang Int brought forward to 0530 hrs on weekdays and Saturdays, and 0545 hrs on Sundays and Public Holidays.
				Last bus to Sembawang Int from the bus stop opposite Novena Church extended to 0030h daily under Thomson-East Coast Line Bus Rationalisation.

Service 981

Operator	Route	Year	Date	Service changes
Known as prior to 10 May 2004	AMSembawang Stn → Senoko Loop PMSenoko Rd → Sembawang Stn	1999	9 November	Introduced between Canberra Rd and Senoko Loop (AM Peak) and between Senoko Rd and Canberra Rd (PM Peak) as a peak hour one-directional service on weekdays and Saturdays.
		2002	4 February	Amended to start from Sembawang Way for morning peak trips and terminate at Sembawang Way for evening peak trips.
	AMSembawang → Senoko Loop PMSenoko Rd → Sembawang	2005	20 November	Extended to Sembawang Int.
		2013	21 April	Designated wheelchair-accessible bus service (WAB).
(Current)		2021	3 October	Operations transferred to Tower Transit Singapore.

Service 983

Operator	Route	Year	Date	Service changes
(Current)	Choa Chu Kang ↺ Choa Chu Kang Ave 5	2015	25 April	Introduced between Choa Chu Kang Int and Choa Chu Kang Ave 5 (Loop) under the LTA's Bus Service Enhancement Programme (BSEP), operating between 0545 hrs and 2345 hrs daily.
			14 June	Designated wheelchair-accessible bus service (WAB).
	Choa Chu Kang ↺ Upp Bukit Timah Rd		27 December	Extended to loop at Bukit Panjang station.
		2016	3 January	Serves new pair of bus stops outside and opposite APSN along Choa Chu Kang Gr.
			24 April	Serves new pair of bus stops outside and opposite Blk 810 CP along Choa Chu Kang Ave 7.
		2017	4 September	Serves the bus stop after Bt Panjang Stn along Upp Bt Timah Rd, skipping the removed bus stop along Petir Rd and the bus stop opposite Bt Panjang Plaza along Jelebu Rd.
	983Choa Chu Kang ↺ Upp Bukit Timah Rd 983AChoa Chu Kang Dr → Choa Chu Kang Rd	2018	30 September	983AIntroduced from Choa Chu Kang Int to Choa Chu Kang Rd (Blk 26), operating after the last bus of Service 983 daily. Wheelchair-accessible bus service (WAB) at launch.
			16 December	Amended to new Choa Chu Kang Int.
		2019	5 October	983ALast bus extended to 0105 hrs daily.
		2024	26 August	983First bus from Choa Chu Kang Int brought forward to 0530 hrs daily.

Service 983M

Operator	Route	Year	Date	Service changes
(Current)	Choa Chu Kang Ave 5 → Teck Whye Cres	2024	18 March	Introduced as a supplementary service from Choa Chu Kang Ave 5 to Teck Whye Cres as a morning peak hour service on weekdays (except school holidays). Wheelchair-accessible bus service (WAB) at launch.

Service 985

Operator	Route	Year	Date	Service changes
(Current) Known as prior to 10 May 2004	985Choa Chu Kang ↔ Lor 1 Geylang 985AChoa Chu Kang → Jln Jurong Kechil	2003	27 July	Introduced between Choa Chu Kang Int and Lor 1 Geylang Ter with the integration of Services 185 and 989.
			28 July	985AIntroduced from Choa Chu Kang Int to Jln Jurong Kechil (Bef Upp Bt Timah Rd) during morning peak hours on weekdays.
			12 October	Serves bus stop opposite Bt Timah Plaza along Jln Anak Bt with the removal of the bus stop under the PIE Flyover.
		2004	27 April	Amended to ply Geylang Rd, Kallang Rd and Sims Ave towards Choa Chu Kang Int with the temporary conversion of Lor 1 Geylang to a one-way road.
			6 December	Amended to ply the reinstated Lor 1 Geylang towards Choa Chu Kang Int, skipping Geylang Rd, Kallang Rd and Sims Ave.
		2006	30 April	Amended to ply Bt Batok West Ave 5 and Bt Batok West Ave 7.
	Choa Chu Kang ↔ Lor 1 Geylang	2008	TBC	985AShort-Trip 985A discontinued.
		2012	15 November	Designated wheelchair-accessible bus service (WAB).
			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	16 December	Amended to new Choa Chu Kang Int.

Service 985W

Operator	Route	Year	Date	Service changes
	Choa Chu Kang ↔ Lor 1 Geylang	2006	15 October	Introduced between Choa Chu Kang Int and Lor 1 Geylang Ter as a alternate route of Service 985 via Bt Batok Rd and Bt Batok West Ave 7 on a 3-month trial.
		2007	14 October	Discontinued.

Service 989

Operator	Route	Year	Date	Service changes
	Choa Chu Kang ↔ Changi Airport	2001	5 August	Introduced between Choa Chu Kang Int and Changi Airport.
		2003	TBC	Serves new bus stop outside Goh & Goh Bldg along Jln Jurong Kechil.
	Choa Chu Kang ↺ Changi Airport		TBC	Converted to loop service between Choa Chu Kang Int and Changi Airport PTB 2.
			27 July	Integrated with Service 185 to form Service 985 and discontinued.

Service 990

Operator	Route	Year	Date	Service changes
	Bukit Batok ↺ Jurong Gateway Rd	2014	15 November	Introduced between Bt Batok Int and Jurong Gateway Rd (Loop) under the LTA's Bus Service Enhancement Programme (BSEP), operating between 0545 hrs and 2400 hrs daily.
		2015	14 March	Serves new bus stop opposite The JTC Summit along Jurong Gateway Rd.
			22 March	Designated wheelchair-accessible bus service (WAB).
(Current)		2016	29 May	Operations transferred to Tower Transit Singapore.

Service 991

Operator	Route	Year	Date	Service changes
(Current)	991Bukit Batok ↺ Bt Batok West Ave 5 991ABukit Batok → Bt Batok West Ave 3	2018	8 July	Introduced between Bt Batok Int and Bt Batok West Ave 5 (Loop), operating between 0530 hrs and 2400 hrs daily. Wheelchair-accessible bus service (WAB) at launch.
				991AIntroduced from Bt Batok Int to Bt Batok West Ave 3 (Princess E Pr Sch), operating after the last bus of Service 991 daily. Wheelchair-accessible bus service (WAB) at launch.
	991Bukit Batok ↔ Choa Chu Kang 991ABukit Batok → Bt Batok West Ave 3 991BChoa Chu Kang → Choa Chu Kang Ave 1		30 September	Integrated with Service 308 and extended to Choa Chu Kang Int.
				991BIntroduced from Choa Chu Kang Int to Choa Chu Kang Ave 1 (Opp Choa Chu Kang Mkt), operating after the last bus of Service 991 daily. Wheelchair-accessible bus service (WAB) at launch.
			16 December	Amended to new Choa Chu Kang Int.
			23 December	Serves new pair of bus stops outside Blk 485B and opposite Blk 485A along Brickland Rd.
	991Bukit Batok ↔ Choa Chu Kang 991ABukit Batok → Bt Batok West Ave 3 991BChoa Chu Kang → Choa Chu Kang Ave 1 991CChoa Chu Kang Ave 5 → Bt Batok West Ave 5	2020	30 September	991CIntroduced from Choa Chu Kang Ave 3 (Opp Blk 464) to Bt Batok West Ave 5 (Bt Gombak Stn) during morning peak hours on weekdays. Wheelchair-accessible bus service (WAB) at launch.

Service 992

Operator	Route	Year	Date	Service changes
(Current)	992Bukit Batok ↺ Plantation Cres 992ABukit Batok → Plantation Cres	2023	24 September	Re-numbered from Feeder Service 944 as a service between Bt Batok Int and Plantation Cres (Loop), operating between 0530 hrs and 0055 hrs daily. Wheelchair-accessible bus service (WAB) at launch.
				992AIntroduced from Bt Batok Int to Plantation Cres (Blk 111), operating after the last bus of Service 992 daily. Wheelchair-accessible bus service (WAB) at launch.
	992Bukit Batok ↺ Tengah Blvd 992ABukit Batok → Tengah Blvd		24 December	Extended to loop at Tengah Blvd.
				992AExtended to terminate at Tengah Blvd (Blk 132B).
	Bukit Batok ↔ Tengah	2024	21 July	Extended to terminate at Tengah Int, operating from 0505 hrs and 0045 hrs from Tengah Int and 0530 hrs and 0110 hrs from Bt Batok Int daily.
				992ADiscontinued with the route extension of Service 992 to Tengah Int.
			28 July	Serves new bus stops outside Blk 242 and opposite Blk 236A along Tengah Gdn Wk.
			15 September	Serves new pair of bus stops along Tengah Gdn Ave.
			10 November	Serves new pair of bus stops along Tengah Blvd.

Service 993

Operator	Route	Year	Date	Service changes
(Current)	Jurong East ↺ Bt Batok West Ave 8	2023	24 September	Re-numbered from Service 160M as a service between Jurong East Int and Bt Batok West Ave 8 (Loop), operating between 0545 hrs and 2345 hrs daily. Wheelchair-accessible bus service (WAB) at launch.
			24 December	Serves new bus stop outside Blk 432A along Bt Batok West Ave 8.