History of Services 171 - 180

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Service 171 Handicapped/disabled access

Operator Year Date Service changes
UBC 1971 11 April Introduced between Sembawang Ter and Queen St Ter under 1971 Bus Reorganisation.
1973 25 June Amended to ply Mandai Lake Rd in both directions until 2200 hours daily.
SBS 1979 28 October Amended to ply Sungei Rd, Ophir Rd and Ban San St (towards Queen St Ter) and amended to ply Rochor Canal Rd and Bt Timah Rd, skipping Bencoolen St, Middle Rd, Selegie Rd and Mackenzie Rd (towards Sembawang Ter) with the conversion of Rochor Canal Rd and Rochor Rd to one-way traffic.
30 December Amended to ply Jln Anak Bt towards Queen St Ter with the partial conversion of Upp Bt Timah Rd to one-way traffic.
1984 15 April Amended to ply Scotts Rd, Orchard Rd and Victoria St/North Bridge Rd, skipping Bt Timah Rd and Sungei Rd/Rochor Canal Rd.
1985 13 October Amended to the relocated Queen St Ter along Ban San St, skipping Arab St.
1987 18 January Amended to Yishun Central Ter.
23 August Amended to Yishun Int.
13 December Serves new staggered bus stop outside Orchard Stn along Orchard Blvd, skipping the bus stop opposite Orchard Stn.
Serves new bus stop outside Newton Stn along Scotts Rd.
1992 TBC Amended to ply Orchard Link, skipping Grange Rd.
1993 3 January Extended to Marina Ctr Ter and amended to ply Bt Panjang Rd, Pending Rd and Cashew Rd under TransitLink Network Integration Exercise Phase 11.
1994 26 April Amended to skip Mandai Lake Rd and amended to ply Mandai Ave with the introduction of Service 138.
1995 TBC Amended to ply Orchard Turn.
Trans Island 5 November Operations transferred to TIBS.
1999 26 December Amended to ply BKE, Bt Panjang Rd, Petir Rd, Jelebu Rd under Bukit Panjang LRT Rationalisation, skipping Woodlands Rd and Cashew Rd.
2000 TBC Serves new bus stop before Goldhill Ave along Dunearn Rd.
TBC Serves additional bus stop opposite Sembawang Air Base along Sembawang Rd.
2002 7 July Serves the bus stop outside Blk 923 along Yishun Ave 2, skipping the bus stop outside Northpoint Shop Ctr.
Skips the bus stop outside Orchard Emerald along Orchard Rd.
2003 24 August Serves the bus stop outside Northpoint Shop Ctr along Yishun Ave 2, skipping the bus stop outside Blk 923.
Template:SMRT Buses
(Current) 		2005 2 July Amended to ply Grange Rd and Orchard Link with the partial closure of Somerset Rd.
2006 29 October Serves relocated bus stop outside Orchard Stn along Orchard Turn.
2009 1 June Designated wheelchair-accessible bus service (WAB).
21 June Serves new pair of bus stops outside and opposite Mandai Crematorium & Columbarium along Mandai Ave.
2010 23 May Skips temporarily abolished bus stop outside Assumption Voc Inst along Upp Bt Timah Rd to facilitate the construction of Cashew MRT station along the Downtown MRT Line.
2011 4 September Serves new bus stop outside Botanic Gdns Stn along Bt Timah Rd.
2015 1 March Serves reinstated bus stop outside Assumption Pathway Sch along Upp Bt Timah Rd.
14 March Amended to Yishun Temp Int.
27 December Serves new bus stop outside Blk 184 along Bt Panjang Rd, skipping the bus stop outside Blk 183.
2017 4 September Skips a pair of bus stops outside and opposite Bt Panjang Plaza along Jelebu Rd.
2018 25 February Serves additional pair of bus stops outside and opposite Blk 180 along Jelebu Rd.
2019 8 September Amended to Yishun Integrated Transport Hub.
2020 30 August Shortened to loop at Upp Bt Timah Rd from Yishun Integrated Transport Hub under Downtown MRT Line 2 Rationalisation.

Service 172 Handicapped/disabled access

Operator Year Date Service changes
UBC 1971 11 April Introduced between Lim Chu Kang Ter and Prince Edward Ter under 1971 Bus Reorganisation.
SBS 1974 3 February Amended to skip Choa Chu Kang Rd End under 1974 Bus Rationalisation.
8 December Amended to ply Cecil St, skipping Robinson Rd.
1976 14 March Serves new staggered bus stop outside The Cenotaph along Connaught Dr, skipping the bus stop opposite Singapore Cricket Club.
1979 28 October Amended to ply Sungei Rd towards Prince Edward Ter with the conversion of Rochor Canal Rd to one-way traffic.
30 December Amended to ply Jln Anak Bt towards Prince Edward Ter with the partial conversion of Upp Bt Timah Rd to one-way traffic.
1980 TBC Amended to ply Bt Timah Rd towards Lim Chu Kang Ter, skipping Mackenzie Rd.
1987 28 June Amended to Shenton Way Ter.
1991 26 May Shortened to loop at Jln Anak Bt from Lim Chu Kang Ter under TransitLink Network Integration Exercise Phase 5.
1993 3 January Amended to Boon Lay Int under TransitLink Network Integration Exercise Phase 11.
1994 TBC Amended to ply Sungei Tengah Rd with the partial closure of Choa Chu Kang Rd.
1998 TBC Serves new pair of bus stops outside and opposite Blk 464 along Choa Chu Kang Ave 3.
Trans Island 1999 26 December Operations transferred to TIBS.
Shortened to Choa Chu Kang Int under Bukit Panjang LRT Rationalisation.
2001 TBC Serves new bus stop outside Sunshine Pl along Choa Chu Kang Ave 3.
Template:SMRT Buses
(Current) 		2006 18 June Amended to Boon Lay Temp Int.
2009 1 June Designated wheelchair-accessible bus service (WAB).
27 December Amended to Boon Lay Integrated Transport Hub.
2011 23 October Skips a pair of abolished bus stops after LP 222 and B27 Old Choa Chu Kang Rd along Old Choa Chu Kang Rd.
2013 25 February Serves new bus stop outside Blk 293 along Choa Chu Kang Ave 1.
2018 16 December Amended to new Choa Chu Kang Int.

Service 173 Handicapped/disabled access

Operator Year Date Service changes
UBC 1971 11 April Introduced between Princess Elizabeth Ter and New Bridge Rd Ter under 1971 Bus Reorganisation.
SBS 1974 24 February Amended to ply Grange Rd, Orchard Blvd and Paterson Rd towards Princess Elizabeth Ter with the conversion of Orchard Rd to one-way traffic.
1979 30 December Amended to ply Jln Anak Bt towards New Bridge Rd Ter with the partial conversion of Upp Bt Timah Rd to one-way traffic.
1986 16 November Serves new staggered bus stop outside Thong Teck Bldg along Scotts Rd, skipping the bus stop outside Metro Orchard.
1987 6 June Amended to the relocated New Bridge Rd Ter.
27 September Amended to ply the extended Eu Tong Sen St towards Princess Elizabeth Ter to facilitate the first stage of road expansion along New Bridge Rd.
1 November Amended to ply Eu Tong Sen St towards Princess Elizabeth Ter to facilitate the second stage of road expansion along New Bridge Rd.
13 December Serves new staggered bus stop outside Orchard Stn along Orchard Blvd, skipping the bus stop opposite Orchard Stn.
1989 29 January Serves relocated bus stop opposite Sri Mariamman Tp along South Bridge Rd, skipping abolished bus stop opposite Jamae Mosque.
1990 10 March Extended to start from Bt Batok Int and shortened to loop at Jln Anak Bt.
1991 7 April Integrated with Service 205 and extended to Clementi Int under TransitLink Network Integration Exercise Phase 3.
1992 3 May Amended to ply the western loop of Bt Batok Central and Bt Batok St 21 under TransitLink Network Integration Exercise Phase 7, skipping Bt Batok East Ave 3.
1993 5 December Converted to loop service between Bt Batok Int and Clementi Int.
Trans Island 2000 24 December Operations transferred to TIBS.
2003 12 October Serves the bus stop opposite Bt Timah Plaza along Jln Anak Bt with the abolition of the bus stop under the PIE Flyover.
Template:SMRT Buses 2006 16 July Amended to ply Bt Batok Ave 1 and Bt Batok East Ave 6 and amended to ply Hume Ave, skipping Hillview Rd.
29 October Amended to loop at Clementi Temp Int.
2011 26 November Amended to loop at Clementi Integrated Transport Hub.
2013 21 April Designated wheelchair-accessible bus service (WAB).
2015 27 December Amended to ply the upgraded Upp Bt Timah Rd towards Clementi Integrated Transport Hub, skipping Jln Anak Bt.
Template:Tower Transit Singapore
(Current) 		2016 29 May Operations transferred to Tower Transit Singapore.

Short Trip 173A Handicapped/disabled access

Operator Year Date Service changes
Template:SMRT Buses 2007 5 November Introduced from Bt Batok Int to Bt Batok East Ave 4 (Blk 254), operating after the last bus of Service 173 daily.
2013 21 April Designated wheelchair-accessible bus service (WAB).
Template:Tower Transit Singapore
(Current) 		2016 29 May Operations transferred to Tower Transit Singapore.

Service 174 Handicapped/disabled access

Operator Year Date Service changes
UBC 1971 11 April Introduced between Nanyang University Ter and New Bridge Rd Ter under 1971 Bus Reorganisation.
SBS 1974 24 February Amended to ply Grange Rd, Orchard Blvd and Paterson Rd towards Nanyang University Ter with the conversion of Orchard Rd to one-way traffic.
1975 TBC Amended to ply Farrer Rd, Holland Rd and Napier Rd, skipping Stevens Rd and Scotts Rd.
9 November Amended to realigned Jurong Rd, skipping Old Jurong Rd.
1977 19 June Amended to ply Orchard Blvd and Grange Rd towards Nanyang University Ter with the full conversion of Orchard Rd to one-way traffic.
1979 30 December Amended to ply Jln Anak Bt towards New Bridge Rd Ter with the partial conversion of Upp Bt Timah Rd to one-way traffic.
1985 17 March Amended to ply Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Central and Bt Batok East Ave 3 with the partial closure of Jurong Rd.
1986 23 March Amended to ply Jln Bahar, skipping Upp Jurong Rd.
1987 22 February Amended to ply Nanyang Ave, Nanyang Cres and Nanyang Dr.
6 June Amended to the relocated New Bridge Rd Ter.
27 September Amended to ply the extended Eu Tong Sen St towards Nanyang Technological Institute Ter to facilitate the first stage of road expansion along New Bridge Rd.
1 November Amended to ply Eu Tong Sen St towards Nanyang Technological Institute Ter 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.
1990 3 June Amended to ply Nanyang Circle and Student Walk, skipping Nanyang Ave.
1991 20 January Amended to ply Nanyang Dr, skipping Nanyang Cres.
7 April Shortened to Boon Lay Int under TransitLink Network Integration Exercise Phase 3.
1992 TBC Amended to ply Orchard Link, skipping Grange Rd.
1993 TBC Amended to ply PIE with the partial closure of Jurong Rd.
1996 TBC Serves new bus stop outside Blk 220 along Boon Lay Ave.
1997 7 December Amended to ply 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.
2000 TBC Serves additional bus stop opposite Blk 333 along Kreta Ayer Rd.
Template:SBS Transit
(Current) 		2002 20 April Amended to ply Upp Cross St and the reinstated New Bridge Rd, skipping South Bridge Rd and Kreta Ayer Rd.
7 July Skips the bus stop outside Orchard Emerald along Orchard Rd.
2003 TBC Serves new bus stop outside Goh & Goh Bldg along Jln Jurong Kechil.
7 December Amended to ply Upp Cross St/Havelock Rd, Chin Swee Rd and Outram Rd.
2004 TBC Skips abolished bus stop outside Nanyang Pr Sch along Farrer Rd.
2005 2 July Amended to ply Grange Rd with the partial closure of Somerset Rd.
2006 18 June Amended to Boon Lay Temp Int.
2008 14 July Designated wheelchair-accessible bus service (WAB).
2009 27 December Amended to Boon Lay Integrated Transport Hub.
2011 14 August Serves additional bus stop outside Clarke Quay Stn along Eu Tong Sen St.
2012 9 December Amended to ply Upp Bt Timah Rd and Bt Timah Link with the partial closure of Jln Jurong Kechil to facilitate the construction of Beauty World MRT station on the Downtown MRT Line.
2014 26 January Amended to ply the reinstated Jln Jurong Kechil, skipping Upp Bt Timah Rd and Bt Timah Link.
2017 23 April Serves new bus stop after Bt Batok West Ave 3 along Bt Batok Rd with the relocation of the bus stop before PIE.
2018 10 March Extended to Kg Bahru Ter with the closure of New Bridge Rd Ter.
2020 27 September Amended to ply PIE with the permanent closure of Jurong Rd.

Service 175 (1971 - 1991)

Operator Year Date Service changes
UBC 1971 11 April Introduced between Upp Jurong Rd Ter and Prince Edward Ter under 1971 Bus Reorganisation.
SBS 1974 8 December Amended to ply Cecil St, skipping Robinson Rd.
1975 9 November Amended to realigned Jurong Rd, skipping Old Jurong Rd.
1979 28 October Amended to ply Sungei Rd towards Prince Edward Ter with the conversion of Rochor Canal Rd to one-way traffic.
30 December Amended to ply Jln Anak Bt towards Prince Edward Ter with the partial conversion of Upp Bt Timah Rd to one-way traffic.
1980 1 January Amended to the relocated Upp Jurong Rd Ter along Jln Ahmad Ibrahim.
TBC Amended to ply Bt Timah Rd towards Upp Jurong Rd Ter, skipping Mackenzie Rd.
1983 TBC Amended to Pioneer Rd Ter.
1985 17 March Amended to ply Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Central and Bt Batok East Ave 3 with the partial closure of Jurong Rd.
1987 28 June Amended to Shenton Way Ter.
1989 23 July Serves new pair of bus stops near Pioneer Rd along Tuas Rd.
6 November Shortened to start from Bt Batok Int and loop at Tuas Rd.
1990 7 July Shortened to loop at Jurong West St 91, skipping Tuas Rd.
1991 20 January Withdrawn under TransitLink Network Integration Exercise Phase 2.

Service 175 (1993 - 2005)

Operator Year Date Service changes
SBS 1993 18 July Introduced between Lim Chu Kang Ter and Upp Bt Timah Rd (Loop).
1994 TBC Amended to ply Sungei Tengah Rd with the partial closure of Choa Chu Kang Rd.
1997 TBC Serves new bus stop outside Lot 1 Shoppers' Mall along Choa Chu Kang Ave 4.
1998 TBC Serves new pair of bus stops outside and opposite Blk 464 along Choa Chu Kang Ave 3.
Trans Island 1999 26 December Operations transferred to TIBS.
2001 TBC Serves new bus stop outside Sunshine Pl along Choa Chu Kang Ave 3.
Template:SMRT Buses 2005 27 February Amended to start from Bt Panjang Int, loop at Lim Chu Kang Rd and re-numbered Service 975, skipping Choa Chu Kang Int and Upp Bt Timah Rd.

Service 175 (since 2007) Handicapped/disabled access

Operator Year Date Service changes
Template:SBS Transit
(Current) 		2007 11 March Introduced between Clementi Temp Int and Lor 1 Geylang Ter.
24 June Serves new bus stop outside Blk 114 along Depot Rd.
2011 26 November Amended to Clementi Integrated Transport Hub.
3 December Designated wheelchair-accessible bus service (WAB).
2013 10 March Serves new bus stop after West Coast Highway along West Coast Link.

Service 175A

Operator Year Date Service changes
SBS 1980 1 January Introduced between Upp Jurong Rd Ter and Tuas Village (Loop).
1982 TBC Withdrawn.

Service 176 (1971 - 1983)

Operator Year Date Service changes
UBC 1971 11 April Introduced between Corporation Dr Ter and Prince Edward Ter under 1971 Bus Reorganisation.
SBS 1974 3 February Extended to Crawford St Ter under 1974 Bus Rationalisation.
8 December Amended to ply the extended Robinson Rd, skipping Market St.
1975 21 July Extended to Boon Lay Gardens Ter.
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 and Beach Rd.
1 June Shortened to Clementi Ave 3 Ter with the opening of Jurong Int.
1979 11 February Amended to ply the extended Shenton Way towards Clementi Ave 3 Ter, skipping Parsi Rd and Anson Rd.
1980 TBC Shortened to loop at Empress Place.
16 November Amended to Clementi Int.
1981 11 October Serves new staggered bus stop outside Tunas Bldg along Anson Rd, skipping the bus stop outside Intl Plaza.
1983 18 December Integrated with Service 146 and withdrawn.

Service 176 (since 1988) Handicapped/disabled access

Operator Year Date Service changes
SBS 1988 24 January Introduced between Jurong East Int and Bt Panjang Ter (Loop).
1989 5 March Amended to ply Bt Batok West Ave 6 and Bt Batok West Ave 3.
Amended to ply Upp Bt Timah Rd and Bt Panjang Rd, skipping Cashew Rd.
1990 1 July Integrated with Service 184, amended to start from Bt Panjang Ter and extended to Bt Merah Int.
1995 30 April Amended to ply Bt Batok East Ave 2, skipping Bt Batok East Ave 4.
Trans Island 1 October Operations transferred to TIBS.
1999 26 December Amended to Bt Panjang Int.
2002 TBC Skips abolished bus stop opposite ITE Pasir Panjang along Telok Blangah Rd.
Template:SMRT Buses
(Current) 		2005 TBC Serves new bus stop outside Hillington Green Condo along Hillview Ave, skipping the bus stop outside Hillview Heights.
2010 23 May Skips temporarily abolished bus stop outside Assumption Voc Inst along Upp Bt Timah Rd to facilitate the construction of Cashew MRT station along the Downtown MRT Line.
2012 16 December Amended to start from and terminate at Jelebu Rd with the closure of Bt Panjang Int.
2015 1 March Serves reinstated bus stop outside Assumption Pathway Sch along Upp Bt Timah Rd.
22 March Designated wheelchair-accessible bus service (WAB).
27 December Serves additional bus stop outside Hillview Stn along Upp Bt Timah Rd.
2017 4 September Amended to Bukit Panjang Integrated Transport Hub.

Service 177 (1978 - 1988)

Operator Year Date Service changes
SBS 1978 27 November Introduced between Bt Timah Ter and Choa Chu Kang Rd End (Loop).
1979 30 December Amended to ply Jln Anak Bt towards Bt Timah Ter with the partial conversion of Upp Bt Timah Rd to one-way traffic.
1987 20 April Serves new staggered bus stop under the PIE Flyover along Jln Anak Bt, skipping the bus stop opposite Bt Timah Plaza.
1988 31 July Withdrawn.

Service 177 (since 1989) Handicapped/disabled access

Operator Year Date Service changes
SBS 1989 26 April Introduced between MINDEF Car Park and Hillview Rd (Loop) as a peak hour service on weekdays and Saturdays only.
1990 10 March Extended to start from Bt Batok Int and extended to loop at Bt Panjang Ter.
Trans Island 1995 2 July Operations transferred to TIBS.
1999 26 December Amended to Bt Panjang Int.
Template:SMRT Buses 2005 TBC Serves new bus stop outside Hillington Green Condo along Hillview Ave, skipping the bus stop outside Hillview Heights.
2012 1 July Designated wheelchair-accessible bus service (WAB).
16 December Amended to loop at Petir Rd with the closure of Bt Panjang Int.
Template:Tower Transit Singapore
(Current) 		2016 29 May Operations transferred to Tower Transit Singapore.
2017 4 September Serves the bus stop outside Blk 180 along Jelebu Rd, skipping the bus stop outside Bt Panjang Plaza.
2020 23 November Amended to ply non-stop along Hillview Rd and Upp Bt Timah Rd with the closure of Hillview Link to facilitate the construction of NS Hub.

Service 178 Handicapped/disabled access

Operator Year Date Service changes
SBS 1974 3 February Introduced between Corporation Dr Ter and Upp Bt Timah Rd Ter under 1974 Bus Rationalisation.
1975 21 July Extended to Boon Lay Gardens Ter.
9 November Amended to realigned Jurong Rd, skipping Old Jurong Rd.
1978 1 June Amended to Jurong Int and amended to ply Jurong Rd, skipping Jln Jurong Kechil.
1980 14 December Extended to Admiralty Rd Ter.
1981 29 November Amended to Woodlands Int.
Trans Island 1983 10 July Operations transferred to TIBS.
1985 17 March Amended to ply Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Central and Bt Batok East Ave 3 with the partial closure of Jurong Rd.
1986 6 July Serves new pair of bus stops outside and opposite Bt Batok Sec Sch along Bt Batok East Ave 6.
1990 1 July Amended to Boon Lay Int.
1996 4 February Extended to Woodlands Reg Int.
TBC Skips a pair of abolished bus stops outside and opposite MOE Water Works along Jln Ahmad Ibrahim.
2003 TBC Serves new pair of bus stops outside and opposite Assyakirin Mosque along Corporation Rd.
Template:SMRT Buses
(Current) 		2006 18 June Amended to Boon Lay Temp Int.
2009 27 December Amended to Boon Lay Integrated Transport Hub.
2010 23 May Skips temporarily abolished bus stop outside Assumption Voc Inst along Upp Bt Timah Rd to facilitate the construction of Cashew MRT station along the Downtown MRT Line.
2011 23 October Serves new bus stop outside International Business Pk along Jurong Town Hall Rd.
2013 29 September Designated wheelchair-accessible bus service (WAB).
2015 1 March Serves reinstated bus stop outside Assumption Pathway Sch along Upp Bt Timah Rd.
2016 12 March Amended to Woodlands Temp Int.
11 December Serves new bus stop opposite Blk 635A along Woodlands Rd.
2017 23 April Serves relocated bus stop before PIE along Bt Batok Rd.
28 May Skips abolished bus stop opposite Mandai Rd along Woodlands Rd.
2018 25 March Amended to ply Woodlands Ave 3 and Woodlands Centre Rd towards Woodlands Temp Int.
10 June Serves new bus stop before Yew Tee Flyover along Woodlands Rd.

Short Trip 178A Handicapped/disabled access

Operator Year Date Service changes
Template:SMRT Buses
(Current) 		2013 15 July Introduced from Woodlands Reg Int to Woodlands Rd (Kranji Stn) during morning peak hours on weekdays.
29 September Designated wheelchair-accessible bus service (WAB).
2016 12 March Amended to Woodlands Temp Int.

Service 179 (1974 - 1983)

Operator Year Date Service changes
SBS 1974 3 February Introduced between Lim Chu Kang Ter and Bt Timah Ter under 1974 Bus Rationalisation.
1978 27 November Amended to skip Choa Chu Kang Rd End with the introduction of Service 177.
1979 30 December Amended to ply Jln Anak Bt towards Bt Timah Ter with the partial conversion of Upp Bt Timah Rd to one-way traffic.
1983 27 November Withdrawn.

Service 179 (1985 - 1990)

Operator Year Date Service changes
SBS 1985 18 August Introduced between Bt Batok Ter and New Bridge Rd Ter.
1987 6 June Amended to the relocated New Bridge Rd Ter.
27 September Amended to Bt Batok Int and amended to ply the extended Eu Tong Sen St towards Bt Batok Int to facilitate the first stage of road expansion along New Bridge Rd.
1 November Amended to ply Eu Tong Sen St towards Bt Batok Int 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.
18 December Extended to Choa Chu Kang Ter and amended to ply Scotts Rd and Orchard Rd.
1990 7 January Serves new pair of bus stops outside and opposite Bt Batok Driving Ctr along Bt Batok West Ave 5.
10 March Extended to interim terminal along Choa Chu Kang Ave 4.
8 April Amended to Choa Chu Kang Int.
16 December Integrated with Service 190 and withdrawn.

Service 179 (1993 - 1999)

Operator Year Date Service changes
SBS 1993 3 January Introduced between Choa Chu Kang Int and Fajar Rd (Loop) under TransitLink Network Integration Exercise Phase 11.
Trans Island 1995 2 July Operations transferred to TIBS.
1999 26 December Withdrawn under Bukit Panjang LRT Rationalisation.

Service 179 (since 2001) Handicapped/disabled access

Operator Year Date Service changes
SBS 2001 7 January Introduced between Boon Lay Int and Nanyang Dr (Loop).
Template:SBS Transit
(Current) 		2006 18 June Amended to Boon Lay Temp Int.
2010 8 May Amended to Boon Lay Integrated Transport Hub.
2014 7 December Serves new bus stop opposite Blk 41 along Nanyang Dr.
2015 3 December Designated wheelchair-accessible bus service (WAB).

Short Trip 179A Handicapped/disabled access

Operator Year Date Service changes
Template:SBS Transit
(Current) 		2007 1 October Introduced from Boon Lay Temp Int to Nanyang Dr (Hall 4) during morning peak hours and from Nanyang Dr (Hall 1) to Boon Lay Temp Int during evening peak hours on weekdays, plying express sectors along Jurong West St 63 and Pioneer Rd North.
2010 8 May Amended to Boon Lay Integrated Transport Hub.
2014 7 December Serves new bus stop opposite Blk 41 along Nanyang Dr.
2015 3 December Designated wheelchair-accessible bus service (WAB).

Service 180 (April - May 1971)

Operator Year Date Service changes
UBC 1971 11 April Introduced between Bt Timah Ter and Prince Edward Ter under 1971 Bus Reorganisation.
9 May Integrated with Service 180A, amended to ply Stamford Rd, Waterloo St and Bras Basah Rd and re-numbered Service 180/180A.

Service 180 (1974 - 1991)

Operator Year Date Service changes
SBS 1974 3 February Re-numbered from Service 180/180A as a service between Upp Bt Timah Rd Ter and Tg Pagar Rd Ter under 1974 Bus Rationalisation.
8 December Amended to ply Cecil St, skipping Robinson Rd.
1976 11 January Extended to Admiralty Rd Ter.
1979 11 February Amended to ply the extended Shenton Way, Rambau St and Trafalgar St towards Tg Pagar Ter, skipping Parsi Rd.
1 August Amended to Anson Rd Ter.
30 December Amended to ply Jln Anak Bt towards Anson Rd Ter with the partial conversion of Upp Bt Timah Rd to one-way traffic.
Trans Island 1983 7 August Operations transferred to TIBS.
1985 13 January Extended to World Trade Ctr Ter.
1991 6 January Withdrawn under TransitLink Network Integration Exercise Phase 1.

Service 180 (since 1996) Handicapped/disabled access

Operator Year Date Service changes
Trans Island 1996 10 March Re-numbered from Service 951 as a service between Bt Panjang Ter and Boon Lay Int under Woodlands MRT Rationalisation.
1999 26 December Amended to Bt Panjang Int.
Template:SMRT Buses
(Current) 		2006 18 June Amended to Boon Lay Temp Int.
2009 27 December Amended to Boon Lay Integrated Transport Hub.
2012 16 December Amended to loop at Petir Rd with the closure of Bt Panjang Int.
2017 23 April Serves relocated bus stop before PIE along Bt Batok Rd.
16 July Designated wheelchair-accessible bus service (WAB).
4 September Serves the bus stop outside Bt Panjang Stn along Upp Bt Timah Rd, skipping the abolished bus stop along Petir Rd.
2018 25 February Amended to loop at Bukit Panjang Integrated Transport Hub.

Service 180/180A

Operator Year Date Service changes
UBC 1971 9 May Re-numbered from Service 180 between Bt Timah Ter and Prince Edward Ter.
SBS 1974 3 February Extended to Upp Bt Timah Rd Ter, extended to Tg Pagar Ter, amended to skip Stamford Rd, Waterloo St and Bras Basah Rd and re-numbered Service 180 under 1974 Bus Rationalisation.

Service 180A (1971 - 1974)

Operator Year Date Service changes
UBC 1971 11 April Introduced between Bt Timah Ter and Stamford Rd (Loop) under 1971 Bus Reorganisation.
9 May Integrated with Service 180 and withdrawn.

Short Trip 180A (since 2012) Handicapped/disabled access

Operator Year Date Service changes
Template:SMRT Buses
(Current) 		2012 16 December Introduced from Boon Lay Integrated Transport Hub to Bt Panjang Rd (Blk 183) during evening peak hours on weekdays and after the last bus of Service 180 daily.
2017 16 July Designated wheelchair-accessible bus service (WAB).
4 September Serves the bus stop outside Bt Panjang Stn along Upp Bt Timah Rd, skipping the abolished bus stop along Petir Rd.
2018 25 February Amended to Bukit Panjang Integrated Transport Hub.
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