History of Services 141 - 150

Service 141 (1971 - 1988)

Operator	Route	Year	Date	Service changes
STC	Kim Keat Ave ↔ Prince Edward (Apr - Aug 1971)	1971	11 April	Introduced between Kim Keat Ave Ter and Prince Edward Ter under 1971 Bus Reorganisation.
	Toa Payoh ↔ Prince Edward (Aug 1971 - 1983)		2 August	Amended to Toa Payoh Town Ctr Ter.
UBC			6 December	Operations transferred to UBC.
		1974	8 December	Amended to ply Cecil St, skipping Robinson Rd.
		1975	21 July	Amended to ply St. Andrew's Rd and Stamford Rd, skipping Coleman St and Hill St.
		1976	14 March	Serves new staggered bus stop outside The Cenotaph along Connaught Dr, skipping the bus stop opposite Singapore Cricket Club.
		1979	11 February	Amended to ply the extended Shenton Way, Palmer Rd and Anson Rd, skipping Parsi Rd.
		1983	2 January	Amended to serve Balestier Rd, Lavender St and Serangoon Rd/Jln Besar, skipping Rangoon Rd and Kitchener Rd.
	Toa Payoh ↺ Robinson Rd (1983 - 1985)		26 December	Amended to Toa Payoh Int, amended to loop at Robinson Rd and converted to a semi-express service on weekdays and Saturdays only.
	Toa Payoh ↺ Cecil St (1985 - 1988)	1985	15 April	Serves all bus stops along Connaught Dr, Collyer Quay, Raffles Quay and Shenton Way and amended to ply Cecil St, Dhoby Ghaut, Selegie Rd, Bt Timah Rd and Kg Java Rd towards Toa Payoh Int.
		1988	24 January	Discontinued.

Service 141 (since 2013)

Refer to Bus Service 141 for more information.

Service 141A (1971 - 1974)

Operator	Route	Year	Date	Service changes
STC	Lor 6 Toa Payoh ↺ Finlayson Green (Apr - Aug 1971)	1971	11 April	Introduced between Lor 6 Toa Payoh Ter and Finlayson Green (Loop) under 1971 Bus Reorganisation.
	Toa Payoh ↺ Finlayson Green (Aug 1971 - 1974)		2 August	Amended to Toa Payoh Town Ctr Ter.
UBC			6 December	Operations transferred to UBC.
		1974	3 February	Integrated with Service 141 and discontinued under 1974 Bus Rationalisation.

Service 142 (1971 - 1976)

Operator	Route	Year	Date	Service changes
STC	Lor 1 Toa Payoh ↔ South Canal (Apr - Aug 1971)	1971	11 April	Introduced between Lor 1 Toa Payoh Ter and Sth Canal Ter under 1971 Bus Reorganisation.
	Toa Payoh ↔ South Canal (Aug 1971 - 1976)		2 August	Amended to Toa Payoh Town Ctr Ter.
ABC			6 December	Operations transferred to ABC.
		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.
		1974	24 February	Amended to ply Grange Rd and Orchard Blvd with the conversion of Orchard Rd to one-way traffic, skipping Orchard Rd.
		1976	TBC	Discontinued.

Service 142 (since 1984) /Short Trip 142A

Refer to Bus Service 142 for more information.

Service 143

Refer to Bus Service 143 for more information.

Service 143M

Refer to Bus Service 143M for more information.

Service 144 (1971 - 1982)

Operator	Route	Year	Date	Service changes
ABS	Kim Keat Ave ↔ Commonwealth Ave (Apr - Aug 1971)	1971	11 April	Introduced between Kim Keat Ave Ter and Commonwealth Ave Ter under 1971 Bus Reorganisation.
	Toa Payoh ↔ Commonwealth Ave (Aug 1971 - 1982)		2 August	Amended to Toa Payoh Town Ctr Ter.
		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.
		1974	24 February	Amended to ply Grange Rd, Orchard Blvd and Paterson Rd towards Toa Payoh Town Ctr Ter with the conversion of Orchard Rd to one-way traffic.
		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.
		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.
		1981	5 July	Amended to ply Cantonment Rd towards Commonwealth Ave Ter, skipping a portion of Neil Rd and New Bridge Rd.
		1982	11 April	Discontinued.

Service 145 /Short Trip 145A

Refer to Bus Service 145 for more information.

Service 146 (1971 - 1989)

Operator	Route	Year	Date	Service changes
STC	Lor 1 Toa Payoh ↔ Keppel Harbour (Apr - May 1971)	1971	11 April	Introduced between Lor 1 Toa Payoh Ter and Keppel Harbour Ter under 1971 Bus Reorganisation.
	Lor 1 Toa Payoh ↔ Pasir Panjang Rd (May - Aug 1971)		2 May	Extended to Pasir Panjang Rd Ter.
	Toa Payoh ↔ Pasir Panjang Rd (Aug 1971 - 1981)		2 August	Amended to Toa Payoh Town Ctr Ter.
UBC			6 December	Operations transferred to UBC.
		1972	18 June	Amended to ply Bendemeer Rd towards Pasir Panjang 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.
			8 December	Amended to ply Cecil St, skipping Robinson Rd.
		1979	11 February	Amended to ply the extended Shenton Way towards Pasir Panjang Rd Ter, skipping Parsi Rd and Anson Rd.
	Toa Payoh ↔ Kent Ridge (1981 - 1983)	1981	5 July	Amended to Kent Ridge Ter.
	Toa Payoh ↔ Clementi (1983 - 1989)	1983	26 December	Amended to Toa Payoh Int.
				Integrated with Service 176 and extended to Clementi Int.
		1985	15 December	Amended to ply Jln Toa Payoh and Lor 2 Toa Payoh towards Toa Payoh Int with the partial closure of Kim Keat Ave.
		1988	3 January	Serves new staggered bus stop opposite Treasury Bldg along Shenton Way, skipping the bus stop opposite Marina Hse.
			11 January	Serves merged bus stop along Ayer Rajah Rd.
			8 March	Amended to ply Clementi Ave 3 with the abolition of right turning from Clementi Ave 3 to Commonwealth Ave West.
		1989	27 August	Integrated with Service 166 and discontinued.

Service 146 (since 2024)

Refer to Bus Service 146 for more information.

Service 147

Refer to Bus Service 147 for more information.

Short Trip 147A

Operator	Route	Year	Date	Service changes
	Hougang Ctrl → Serangoon Central (2000 - 2003)	2000	TBC	Introduced from Hougang Ctrl Temp Ter to Serangoon Ctrl (Blk 206) during morning peak hours daily.
(Current)	Hougang Ctrl → Bencoolen St (2003 - 2004)	2003	TBC	Extended to terminate at Bencoolen St (Plaza By The Pk).
	Hougang Ctrl → New Bridge Rd (since 2004)	2004	TBC	Extended to terminate at New Bridge Rd (Opp Pearl's Ctr).
		2006	30 October	Designated wheelchair-accessible bus service (WAB).
		2011	16 October	Amended to ply Middle Rd, Selegie Rd, Prinsep St and Bras Basah Rd with the partial closure of Bencoolen St to facilitate the construction of Bencoolen MRT station on the Downtown MRT Line.
		2015	TBC	Revised to operate during morning peak hours on weekdays only.
		2016	11 December	Amended to ply the reinstated Bencoolen St, skipping Middle Rd, Selegie Rd, Prinsep St and Bras Basah Rd.

Service 148 (1971 - 1989)

Operator	Route	Year	Date	Service changes
ABC	Kim Keat Ave ↔ Commonwealth Ave (Apr - Aug 1971)	1971	11 April	Introduced between Kim Keat Ave Ter and Commonwealth Ave Ter under 1971 Bus Reorganisation.
	Toa Payoh ↔ Commonwealth Ave (Aug 1971 - 1982)		2 August	Amended to Toa Payoh Town Ctr Ter.
		1972	18 June	Amended to ply Bendemeer Rd towards Commonwealth Ave Ter with the conversion of Serangoon Rd to one-way traffic.
		1975	6 July	Amended to ply Jln Kolam Ayer, Kallang Bahru, Boon Keng Rd, Lor 1 Geylang and Sims Ave/Geylang Rd, skipping Lavender St.
		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.
	Toa Payoh ↔ Buona Vista (1982 - 1989)	1982	27 May	Amended to Buona Vista Ter.
			11 June	Amended to ply Bendemeer Rd and Geylang Bahru, skipping Jln Kolam Ayer.
		1983	1 January	Amended to ply Woodsville Flyover, skipping Bendemeer Rd, Whampoa Nth and Serangoon Rd.
			26 December	Amended to Toa Payoh Int.
		1985	15 December	Amended to ply Jln Toa Payoh and Lor 2 Toa Payoh towards Toa Payoh Int with the partial closure of Kim Keat Ave.
		1987	27 September	Amended to ply Sth Bridge Rd, Nth Canal Rd and Eu Tong Sen St, skipping Upp Circular Rd.
		1989	27 August	Integrated with Service 26 and discontinued.

Service 148 (March - November 1992)

Operator	Year	Date	Service changes
	1992	29 March	Introduced between Clementi Int and Lor 1 Geylang Ter under TransitLink Network Integration Exercise Phase 6.
		29 November	Discontinued under TransitLink Network Integration Exercise Phase 10.

Service 149 (1971 - 1980)

Operator	Route	Year	Date	Service changes
UBC	Kim Keat Ave ↔ Prince Edward (Apr - Aug 1971)	1971	11 April	Introduced between Kim Keat Ave Ter and Prince Edward Ter under 1971 Bus Reorganisation.
	Toa Payoh ↔ Prince Edward (Aug 1971 - 1980)		2 August	Amended to Toa Payoh Town Ctr Ter.
		1974	3 February	Integrated with Service 149A and amended to ply Lor 6 Toa Payoh, Lor 2 Toa Payoh, Lor 1A Toa Payoh, Lor 1 Toa Payoh, Lor 2 Toa Payoh, Lor 3 Toa Payoh, Lor 4 Toa Payoh, Lor 5 Toa Payoh, Lor 4 Toa Payoh and Lor 1 Toa Payoh under 1974 Bus Rationalisation.
			8 December	Amended to ply Cecil St, skipping Robinson Rd.
		1975	21 July	Amended to ply Stamford Rd, skipping Coleman St and Armenian St.
		1976	14 March	Serves new staggered bus stop outside The Cenotaph along Connaught Dr, skipping the bus stop opposite Singapore Cricket Club.
		1978	5 March	Amended to ply Keng Lee Rd with the partial conversion of Kg Java Rd to one-way traffic.
			3 December	Amended to ply Mayne Rd and Bt Timah Rd with the partial conversion of Mackenzie Rd to two-way traffic.
		1979	11 February	Amended to ply the extended Shenton Way, Palmer Rd and Anson Rd, skipping Parsi Rd.
			28 October	Amended to ply Sungei Rd (towards Prince Edward Ter) and Bt Timah Rd (towards Toa Payoh Town Ctr Ter) with the partial conversion of Bt Timah Rd to two-way traffic and Rochor Canal Rd to one-way traffic, skipping Mackenzie Rd and Mayne Rd.
		1980	3 February	Integrated with Service 150 and discontinued.

Service 149 (1983 - 1993)

Operator	Year	Date	Service changes
	1983	25 June	Introduced between Toa Payoh Town Ctr Ter and Changi Airport PTB (Loop) under Changi Airport Bus Plan 1983.
		26 December	Amended to Toa Payoh Int.
	1984	14 September	Amended to ply Siglap Rd and Siglap Lk towards Changi Airport with the opening of ECP.
	1985	15 December	Amended to ply Jln Toa Payoh and Lor 2 Toa Payoh towards Toa Payoh Int with the partial closure of Kim Keat Ave.
	1989	19 November	Serves new bus stop outside Kallang Stn along Sims Ave.
	1990	13 October	Amended to serve Changi Airport PTB 2.
	1991	7 July	Serves new bus stop outside PA Sea Sports Ctr along ECP.
	1993	5 December	Integrated with Services 16 and 31 and discontinued under TransitLink Network Integration Exercise Phase 14.

Service 149A (1971 - 1974)

Operator	Route	Year	Date	Service changes
UBC	Lor 1 Toa Payoh ↺ Finlayson Green (Apr - Aug 1971)	1971	11 April	Introduced between Lor 1 Toa Payoh Ter and Finlayson Green (Loop) under 1971 Bus Reorganisation.
	Toa Payoh ↺ Finlayson Green (Aug 1971 - 1974)		2 August	Amended to Toa Payoh Town Ctr Ter.
		1974	3 February	Integrated with Service 149 and discontinued under 1974 Bus Rationalisation.

Service 150 (1971 - 1990)

Operator	Route	Year	Date	Service changes
UBC	Lor 1 Toa Payoh ↔ Crawford St (Apr - Aug 1971)	1971	11 April	Introduced between Lor 1 Toa Payoh Ter and Crawford St Ter under 1971 Bus Reorganisation.
	Toa Payoh ↔ Crawford St (Aug 1971 - 1990)		2 August	Amended to Toa Payoh Town Ctr Ter.
		1978	5 March	Amended to ply Keng Lee Rd with the partial conversion of Kg Java Rd to one-way traffic.
			3 December	Amended to ply Mayne Rd and Bt Timah Rd with the partial conversion of Mackenzie Rd to two-way traffic.
		1979	28 October	Amended to ply Sungei Rd (towards Crawford St Ter) and Weld Rd, Jln Besar and Bt Timah Rd (towards Toa Payoh Town Ctr Ter) with the partial conversion of Bt Timah Rd to two-way traffic and Rochor Canal Rd to one-way traffic, skipping Mackenzie Rd and Mayne Rd.
		1980	3 February	Integrated with Service 149 and amended to ply Jln Sultan, Beach Rd, Middle Rd and Selegie Rd towards Toa Payoh Town Ctr Ter, skipping Arab St, Rochor Canal Rd, Weld Rd, Jln Besar and Rochor Canal Rd.
		1983	26 December	Amended to Toa Payoh Int.
		1990	2 September	Integrated with Service 56 and discontinued.

Service 150 (since 2016)

Refer to Bus Service 150 for more information.