Difference between revisions of "History of Services 1 - 10"

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|Withdrawn under TransitLink Integration Exercise.
|Withdrawn under TransitLink Integration Exercise.
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|rowspan="3"|'''2nd Gen<br>(2002 - present)'''
|rowspan="4"|'''2nd Gen<br>(2002 - present)'''
|'''7 April 2002'''
|'''7 April 2002'''
|Re-introduced between Tampines and Pasir Ris St 71 (loop), with the merger of Feeder Service 294 and Townlink Service 357.
|Re-introduced between Tampines and Pasir Ris St 71 (loop), with the merger of Feeder Service 294 and Townlink Service 357.

Revision as of 13:16, 25 August 2015

Service 1

Date Service changes
11 April 1971 Introduced between Changi Point and Delta Circus.
1 December 1974 Amended to ply New Changi Rd, Bedok Plain, Bedok Heights, Upp East Coast Rd and Bedok Rd.
14 November 1975 Amended to ply New Changi Rd (now known as New Upp Changi Rd).
11 November 1979 Amended to Delta Fringe Car Park.
1983 Amended to Changi Village Ter.
5 November 1989 Withdrawn under Bus-MRT Rationalisation.

Service 1A

Date Service changes
1 August 1971 Introduced between Changi Point and Delta Circus, via Nicoll Dr and North Bridge Rd.
3 February 1974 Re-numbered Service 3 under 1974 Bus Rationalisation. (Related change)

Service 2

Date Service changes
11 April 1971 Introduced between Changi Point and Commonwealth Ave/North Buona Vista Rd.
1 December 1974 Amended to ply New Changi Rd, Bedok Plain, Bedok Heights, Upp East Coast Rd and Bedok Rd.
14 November 1975 Amended to ply New Changi Rd (now known as New Upp Changi Rd).
28 December 1980 Amended to ply Jln Bt Merah and Kg Bahru Rd in both directions, skipping Outram Rd, Tiong Bahru Rd, Henderson Rd.
1983 Amended to Changi Village Ter. At the same time, amended to Buona Vista Ter.
29 November 1992 Shortened to New Bridge Rd Ter under TransitLink Integration Exercise.
11 April 1993 Amended to ply Jln Sultan, Victoria St, Hill St, New Bridge Rd & Eu Tong Sen St, skipping North Bridge Rd, South Bridge Rd, Neil Rd & Eu Tong Sen St.
3 July 1994 Amended to ply Kallang Rd and Victoria St, skipping Crawford St, North Bridge Rd and Jln Sultan.
1997 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 works for the North-East MRT Line.
2002 Amended back to ply the reinstated New Bridge Rd, skipping Upp Pickering St, South Bridge Rd and Kreta Ayer Rd.
29 December 2013 Amended to ply Upp Changi Link, with the permanent closure of part of Upp Changi Rd.

Service 2A

Date Service changes
1 August 1971 Introduced between Changi Point and Commonwealth Ave/North Buona Vista Rd, via New Changi Rd and Shenton Way.
3 February 1974 Re-numbered Service 3 under 1974 Bus Rationalisation.

Service 3

Service Gen Date Service changes
1st Gen
(1974 - 1991)
3 February 1974 Re-numbered from Service 1A as a service between Changi Point and Delta Circus. (Related change)
1 December 1974 Amended to ply New Changi Rd, Bedok Plain, Bedok Heights, Upp East Coast Rd and Bedok Rd.
30 November 1975 Amended to ply Bedok Plain and Bedok Walk (now known as Bedok South Rd and Bedok South Ave 3 respectively).
15 July 1976 Amended to ply Upp Changi Rd, skipping Telok Paku Rd and Nicoll Dr.
27 February 1977 Shortened to Bedok South Rd Ter.
8 April 1979 Amended to Bedok Int. At the same time, shortened to loop at New Bridge Rd and converted to a semi-express service. The express sector was along Geylang Rd, Guillemard Rd, Nicoll Highway, Connaught Dr and Stamford Rd towards New Bridge Rd; Victoria St, Bras Basah Rd, Nicoll Highway, Guillemard Rd, Lor 22 Geylang, Aljunied Rd and Sims Ave towards Bedok.
27 November 1983 Express sector shortened to Changi Rd (after Still Rd) and Geylang Rd (before Mountbatten Rd) and proceed via Kallang Rd, Crawford St, North Bridge Rd, South Bridge Rd, Neil Rd and New Bridge Rd. Return trip via New Bridge Rd, Hill St, Victoria St, Kallang Rd followed by express sector along Sims Ave between Geylang Lor 1 and Jln Eunos. At the same time, merged with Service 6.
12 January 1986 Converted to trunk service.
26 January 1987 Extended to Jurong East Int via Jln Bt Merah, Queensway, Commonwealth Ave, Commonwealth Ave West, Boon Lay Way and Jurong East Ctrl.
20 March 1988 Amended to ply Upp Cross St and New Bridge Rd, skipping part of South Bridge Rd.
6 January 1991 Withdrawn under TransitLink Integration Exercise.
2nd Gen
(2002 - present)
7 April 2002 Re-introduced between Tampines and Pasir Ris St 71 (loop), with the merger of Feeder Service 294 and Townlink Service 357.
19 October 2003 Extended to loop at Punggol Ctrl.
30 November 2003 Amended to Punggol Temp Int.
24 August 2014 Amended to call at the bus stops near Punggol Flyover along the TPE.

Service 4

Service Gen Date Service changes
1st Gen
(1971 - 1974)
11 April 1971 Introduced between Changi Point and Lloyd Leas Estate (loop).
3 February 1974 Withdrawn under 1974 Bus Rationalisation.
2nd Gen
(1979 - 1993)
11 March 1979 Re-introduced between Bedok and Moulmein Rd (loop).
31 July 1988 Extended to St. Michael's Ter via Moulmein Rd, Thomson Rd, Balestier Rd, Whampoa Dr/Kim Keat Rd and Jln Bahagia.
10 March 1990 Merged with Service 19 and extended to Pasir Ris Int under Bus-MRT Rationalisation.
29 November 1992 Shortened to Tampines Int under TransitLink Integration Exercise.
23 May 1993 Merged with Services 21 & 67 and withdrawn under TransitLink Integration Exercise.
3rd Gen
(2013 - present)
17 March 2013 Re-introduced between Tampines and Changi North Way (loop) via Flora Rd/Mariam Way under the LTA's Bus Service Enhancement Programme (BSEP).

Service 5

Service Gen Date Service changes
1st Gen
(1971 - 1995)
11 April 1971 Introduced between Upp Changi Rd and Commonwealth Ave/North Buona Vista Rd.
1973 Extended to terminate at Upp Bt Timah Ter.
3 February 1974 Shortened to Chai Chee Ter.
1977 Shortened to Lor 1 Geylang Ter.
1 June 1986 Extended to Zhenghua Ter.
11 October 1987 Amended to Bt Panjang Ter.
29 March 1992 Amended to ply Holland Ave, C'wealth Ave, Margaret Dr, Alexandra Rd, Lower Delta Rd, Jln Bt Merah, Kg Bahru Rd and Eu Tong Sen St/New Bridge Rd under TransitLink Integration Exercise, skipping Queensway, C'wealth Ave, Alexandra Rd, Ganges Ave and Havelock Rd.
11 April 1993 Amended to ply Jln Sultan, Victoria St, Hill St and New Bridge Rd, skipping North Bridge Rd, South Bridge Rd and Upp Cross St.
3 July 1994 Amended to ply Kallang Rd and Victoria St (towards Bt Panjang Ter), skipping Crawford St, North Bridge Rd and Jln Sultan.
17 September 1995 Handed over to TIBS. (Related change)
2nd Gen
(2007 - present)
11 March 2007 Re-introduced between Pasir Ris and Bukit Merah.
28 August 2011 Amended to ply Jln Tenaga & Jln Damai with the partial closure of Kaki Bukit Ave 1 to facilitate the Downtown MRT Line construction works.

Service 6

Service Gen Date Service changes
1st Gen
(1977 - 1983)
11 July 1977 Introduced as a semi-express service between Chai Chee and New Bridge Rd (loop).
25 February 1979 Amended to Bedok Int.
27 November 1983 Merged with Service 3 and withdrawn.
2nd Gen
(1993 - present)
25 October 1993 Re-introduced as a peak hour service between Pasir Ris and Loyang Cres (loop).
24 October 1994 Converted to full day service.
20 December 2004 Amended to ply Loyang Way and Loyang Ave towards Pasir Ris.

Service 7

Date Service changes
11 March 1979 Introduced as a semi-express service between Bedok Int and Holland Rd Fringe Car Park (Dempsey Rd) (loop), replacing Blue Arrow Service 307.
1982 Extended to Clementi Int.
6 January 1985 Extended to Jurong East Ctrl Ter.
30 June 1985 Amended to Jurong East Int.
29 August 1985 Converted to trunk service.
5 November 1989 Amended to ply Mountbatten Rd, Geylang Rd, Kallang Rd, Crawford St and North Bridge Rd (towards Clementi) and Victoria St, Kallang Rd, Lor 1 Geylang and Mountbatten Rd (towards Bedok) under Bus-MRT Rationalisation, skipping Nicoll Highway.
7 April 1991 Shortened to Clementi Int under TransitLink Integration Exercise. At the same time, amended to Clementi Ave 5, skipping Commonwealth Ave West and Clementi Ave 2.
28 April 1991 Amended to ply Clementi Ave 5 in both directions.
5 June 2005 Amended to ply Sims Ave and Sims Way with the partial closure of southbound Mountbatten Rd.
2 July 2005 Amended to ply Sims Way and Geylang Rd with the partial closure of northbound Mountbatten Rd. At the same time, amended to ply Grange Rd with the closure of Orchard Link.
29 October 2006 Amended to Clementi Temp Int.
19 November 2011 Amended to Bedok Temp Int.
26 November 2011 Amended to air-conditioned Clementi Int.
30 November 2014 Amended to air-conditioned Bedok Int.

Service 8

Service Gen Date Service changes
1st Gen
(1979 - 1989)
26 February 1979 Introduced as a semi-express service between Bedok and Shenton Way (loop).
30 November 1986 Extended to Marina Ctr Ter.
6 November 1989 Withdrawn under Bus-MRT Rationalisation.
2nd Gen
(1990 - present)
1 March 1990 Re-introduced as an air-conditioned service between Pasir Ris and Toa Payoh.
29 November 1992 Shortened to Tampines Int under TransitLink Integration Exercise.
5 March 1994 Amended to use Kim Keat Flyover with the closure of Toa Payoh South Flyover.
18 September 1995 Amended to ply Tampines Ave 1, Tampines Ave 10 (express) and Bedok North Rd with the opening of Temasek Polytechnic.
31 May 1998 Amended to Toa Payoh Temp Int.
19 May 2002 Amended to air-conditioned Toa Payoh Int.
4 September 2011 Amended to skip Bendemeer Rd, Whampoa North and Serangoon Rd.

Service 9

Date Service changes
8 April 1979 Introduced between Lor 1 Geylang and Changi Point.
25 June 1983 Merged with Service 391 and 395 and extended to loop at Changi Airport Cargo Complex under Changi Airport Bus Plan 1983.
15 December 1985 Amended to ply Loyang Ave, skipping part of Upp Changi Rd and Loyang Way.
10 April 1988 Amended to ply Upp Changi Rd East, Simei Rd, Tampines St 31, Ave 2 & Ave 7, skipping Bedok Rd & Upp Changi Rd in both directions.
29 November 1992 Shortened to Bedok Int under TransitLink Integration Exercise.
15 January 1995 Amended to ply Bedok Rd, Upp Changi Rd, Simei Ave, Simei St 3, Simei Rd, skipping Upp Changi Rd East and Simei Rd.
19 November 2011 Amended to Bedok Temp Int.
30 November 2014 Amended to air-conditioned Bedok Int.

Service 10

Date Service changes
11 April 1971 Introduced between Bedok Rd and Prince Edward Rd.
16 June 1971 Extended to Shipyard Rd Ter.
1975 Amended to Upp Changi Rd 8¼ ms (13.3km) Ter.
1 June 1978 Amended to Jurong Int.
1979 Relocated to Upp Changi Rd 15.5km.
15 June 1980 Amended to Somapah Ter.
27 April 1984 Extended to Tampines Ave 5 Ter.
29 November 1987 Amended to Tampines Int.
1 July 1990 Shortened to Clementi Int.
28 June 1992 Amended to Tg Katong Rd, Dunman Rd, Old Airport Rd, skipping part of Mountbatten Rd.
7 March 1999 Shortened to Kent Ridge Ter with the introduction of Service 188.
2000 Amended to ply Esplanade Dr, skipping Connaught Dr.
19 March 2006 Amended to ply Cassia Link, Cassia Cres, Guillemard Rd and Guillemard Camp Rd with the partial closure of Old Airport Rd and Dunman Rd to facilitate the construction works for the Circle MRT Line.
29 December 2008 Amended to ply the reinstated Old Airport Rd and Dunman Rd, skipping Cassia Link, Guillemard Rd and Guillemard Camp Rd.

Service 11

Service Gen Date Service changes
1st Gen
(1971 - 1988)
11 April 1971 Introduced between Bedok Rd and Tg Pagar Rd/Anson Rd.
3 February 1974 Amended to Upp Changi Rd 8¼ ms (13.3km) Ter under 1974 Bus Rationalisation.
23 October 1977 Amended to New Bridge Rd Ter.
1979 Relocated to Upp Changi Rd 15.5km.
15 June 1980 Amended to Somapah Ter.
6 June 1987 Amended to the relocated New Bridge Rd Ter.
23 October 1988 Withdrawn under Bus-MRT Rationalisation.
2nd Gen
(1990 - present)
14 April 1990 Introduced between Lor 1 Geylang and Kallang Park/National Stadium (loop).
12 June 1994 Amended to ply Nicoll Highway and Stadium Rd before plying Stadium Blvd.
2002 Amended to ply Stadium Rd, Stadium Walk and Stadium Blvd.
5 June 2005 Amended to ply Sims Ave and Sims Way with the partial closure of southbound Mountbatten Rd.
2 July 2005 Amended to ply Sims Way and Geylang Rd with the partial closure of northbound Mountbatten Rd.
18 February 2006 Amended to ply Stadium Cres with the closure of Stadium Blvd to facilitate the construction works for the Circle MRT Line.
29 September 2010 Amended to ply Mountbatten Rd and Stadium Blvd with the closure of Stadium Rd.
8 June 2014 Extended to loop at Rhu Cross via Stadium Way and Tg Rhu Rd under the LTA's Bus Service Enhancement Programme (BSEP).

Service 12

Date Service changes
11 April 1971 Introduced between Bedok Rd and Commonwealth Ave/North Buona Vista Rd.
3 February 1974 Amended to Upp Changi Rd 8¼ ms (13.3km) Ter under 1974 Bus Rationalisation.
1979 Relocated to Upp Changi Rd 15.5km.
15 June 1980 Amended to Somapah Ter.
28 December 1980 Amended to ply Upp Changi Rd.
1983 Amended to Buona Vista Ter.
23 October 1988 Extended to Pasir Ris Ter via Simei Rd, Tampines St 31/Ave 2/Ave 7, Loyang Ave & Pasir Ris Dr 1/Dr 6/Dr 3. At the same time, amended to New Bridge Rd Ter via South Bridge Rd, Upp Cross St and Eu Tong Sen St/New Bridge Rd under Bus-MRT Rationalisation.
10 December 1989 Amended to Pasir Ris Int.
11 April 1993 Amended to ply Jln Sultan, Victoria St, Hill St and New Bridge Rd, skipping North Bridge Rd, South Bridge Rd and Upp Cross St.
3 July 1994 Amended to ply Kallang Rd and Victoria St, skipping Crawford St, North Bridge Rd and Jln Sultan.
1997 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 works for the North East MRT Line.
2002 Amended back to ply the reinstated New Bridge Rd, skipping Upp Pickering St, South Bridge Rd and Kreta Ayer Rd.
5 June 2005 Amended to ply Sims Ave and Sims Way with the partial closure of southbound Mountbatten Rd.
2 July 2005 Amended to ply Sims Way and Geylang Rd with the partial closure of northbound Mountbatten Rd.

Service 12A

Date Service changes
31 December 1979 Introduced between Bedok South Ave 3 and North Bridge Rd (loop), an alternate variant of Service 12.
2 September 1984 Withdrawn.

Service 13

Date Service changes
11 April 1971 Introduced between Bedok Rd/Upp Changi Rd and Commonwealth Ave/North Buona Vista Rd.
9 May 1971 Amended to ply Upp Changi Rd, Changi Rd, Geylang Rd, Kallang Rd, Crawford St, North Bridge Rd and Stamford Rd.
3 February 1974 Amended to Upp Changi Rd 8¼ ms (13.3km) Ter under 1974 Bus Rationalisation.
22 February 1974 Amended to Orchard Blvd and Grange Rd, skipping Orchard Rd and Tanglin Rd, with the conversion of Orchard Rd to one-way road.
1 December 1974 Amended to Upp Changi Rd Ter (near Track 6).
16 November 1975 Amended to Chai Chee Ter via New Upp Changi Rd.
7 March 1977 Extended to Ghim Moh Ter.
8 September 1985 Extended to Bedok Int with the closure of Chai Chee Ter.
12 April 1987 Shortened to Eunos Ter.
5 November 1989 Extended to Yio Chu Kang Ter via Lavender St, Serangoon Rd/Bendemeer Rd, Upp Serangoon Rd, Braddell Rd, Bishan Rd & Ang Mo Kio Ave 8/Ave 3/Ave 6 under Bus-MRT Rationalisation. Deleted sectors between Orchard and Ghim Moh Ter were covered by Service 111.
10 December 1989 Amended to Eunos Int.
2 September 1990 Amended to ply Bishan St 22, Marymount Rd & Ang Mo Kio Ave 6 under TransitLink Integration Exercise, skipping part of Bishan Rd, Ang Mo Kio Ave 8 & Ave 3.
1998 Extended to Marine Parade Ter with the route amendment of Service 15, via Marine Cres & Marine Terr.
16 September 2001 Amended to loop at Siglap Link with the closure of Marine Parade Ter.
9 December 2001 Extended to Upp East Coast Ter.
4 August 2002 Allowed boarding and alighting activities at Upp East Coast Ter.

Service 13A

Date Service changes
11 April 1971 Introduced between Bedok Rd/Upp Changi Rd and Commonwealth Ave/North Buona Vista Rd.
3 February 1974 Re-numbered Service 14 under 1974 Bus Rationalisation. At the same time, shortened to loop at Mei Chin Rd. (Related change)

Service 14

Date Service changes
3 February 1974 Re-numbered from Service 13A as a service between Bedok Rd and Mei Chin Rd (loop). (Related change)
1976 Amended to Upp Changi Rd 8¼ ms (13.3 km) Ter.
2 December 1979 Extended to Jln Bt Merah Ter via Napier Rd, Holland Rd, Queensway, Jln Bt Merah, Henderson Rd & Bt Merah Ctrl. At the same time, skipped Mei Chin Rd.
1979 Relocated to Upp Changi Rd 15.5km.
15 June 1980 Amended to Somapah Ter.
28 September 1980 Amended to Bt Merah Int.
16 March 1986 Amended to ply Kallang Park/National Stadium.
13 April 1986 Amended to ply Stadium Rd, skipping Stadium Walk.
5 November 1989 Extended to Changi Village Ter under Bus-MRT Rationalisation.
20 January 1991 Shortened to Bedok Int under TransitLink Integration Exercise.
29 March 1992 Amended to skip Henderson Rd under TransitLink Integration Exercise.
23 May 1993 Merged with Service 92 and extended to Clementi Int under TransitLink Integration Exercise, skipping National Stadium, Tanglin Rd/Orchard Blvd, Napier Rd, Holland Rd & Queensway. Deleted sectors were covered by Service 123.
2 July 2005 Amended to ply Grange Rd with the closure of Orchard Link.
29 October 2006 Amended to Clementi Temp Int.
19 November 2011 Amended to Bedok Temp Int.
26 November 2011 Amended to air-conditioned Clementi Int.
30 November 2014 Amended to air-conditioned Bedok Int.

Service 15

Service Gen Date Service changes
1st Gen
(1975 - 1984)
22 June 1975 Introduced between Marine Terr and Prince Edward.
4 June 1976 Extended to loop at Shenton Way.
1981 Amended to Marine Parade Ter.
16 September 1984 Merged with Service 196 and withdrawn.
2nd Gen
(1995 - present)
18th September 1995 Re-introduced between Pasir Ris and Eunos with the opening of Temasek Polytechnic.
1997 Merged with Service M4 and extended to loop at Marine Parade Rd.
1998 Amended to skip Marine Cres with the route extension of Service 13.
28 August 2011 Amended to ply Jln Tenaga & Jln Damai, with the partial closure of Kaki Bukit Ave 1 to facilitate the Downtown MRT Line construction works.

Service 16

Date Service changes
2 May 1976 Introduced between Marine Terr and Telok Blangah Heights.
28 September 1980 Amended to Bt Merah Int.
1981 Amended to Marine Parade Ter.
1983 Amended to ply Kallang Park/National Stadium after 1930 hours daily.
13 April 1986 Amended to ply Stadium Rd, skipping Stadium Walk during the evening diversion into Kallang Park/National Stadium.
23 February 1987 Amended to Kallang Park/National Stadium after 1845 hours daily.
1993 Amended to ply Kallang Park/National Stadium permanently.
5 December 1993 Merged with Service 149 and extended to Changi Airport under TransitLink Integration Exercise. At the same time, amended to ply Zion Rd/Kim Seng Rd, Outram Rd and Tiong Bahru Rd, skipping River Valley Rd, Delta Rd and Lower Delta Rd.
6 September 1998 Shortened back to Marine Parade Ter with the conversion of Service 36 to a full-day trunk service.
16 September 2001 Amended to loop at Siglap Link with the closure of Marine Parade Ter.
Feb 2002 Amended to ply Stadium Walk/Cres with the construction of Circle Line.
2 July 2005 Amended to ply Grange Rd with the closure of Orchard Link.
18 February 2006 Amended to ply Stadium Cres with the closure of Stadium Blvd to facilitate the construction of Circle Line.
19 March 2006 Amended to ply Cassia Link, Cassia Cres, Guillemard Rd and Guillemard Camp Rd with the partial closure of Old Airport Rd and Dunman Rd to facilitate the construction works for the Circle MRT Line.
19 August 2007 Extended to Bedok Int via Upp East Coast Rd, Bedok South Ave 1, Bedok South Rd & Bedok North Ave 1.
29 December 2008 Amended to ply the reinstated Old Airport Rd and Dunman Rd, skipping Cassia Link, Guillemard Rd and Guillemard Camp Rd.
29 September 2010 Amended to ply Mountbatten Rd with the closure of Stadium Rd/Stadium Dr to facilitate the construction of the Singapore Sports Hub.
19 November 2011 Amended to Bedok Temp Int.
30 November 2014 Amended to air-conditioned Bedok Int.

Service 16E

Date Service changes
1 February 1994 Introduced as a one-directional semi-express peak-hour service between Bt Merah and Changi Airport (runs express along ECP).
1 December 1997 Re-numbered Service 36. (Related change)

Service 17

Service Gen Date Service changes
1st Gen
(1981 - 1984)
22 February 1981 Introduced between Changi Point and Prince Edward Rd.
1983 Amended to Changi Village Ter.
8 April 1984 Withdrawn.
2nd Gen
(1993 - present)
4 April 1993 Re-introduced between Pasir Ris and Bedok under TransitLink Integration Exercise.
2003 Amended to loop at Bedok Int.
19 November 2011 Amended to Bedok Temp Int.
30 November 2014 Amended to air-conditioned Bedok Int.

Service 17A

Date Service changes
17 April 2006 Introduced as a short-working trip service between Bedok Int and Bedok North Depot.
16 November 2014 Converted to a full-day service under the LTA's Bus Service Enhancement Programme (BSEP).
30 November 2014 Amended to loop at air-conditioned Bedok Int.

Service 18

Date Service changes
25 August 1984 Introduced between Bedok and Tampines St 22 (loop).
29 November 1987 Extended to Tampines Int via Tampines Ave 7, skipping Tampines St 22. At the same time, re-routed to start from Tampines Int and loop at Bedok Int.
19 November 2011 Amended to loop at Bedok Temp Int. At the same time, amended to ply Bedok North Rd and Bedok North Ave 2, skipping Bedok North St 1 & Bedok North Ave 3.
30 November 2014 Amended to loop at air-conditioned Bedok Int.

Service 19

Service Gen Date Service changes
1st Gen
(1980 - 1981)
1980 Introduced between Siglap Rd and Prince Edward Rd.
12 May 1980 Converted to peak-hour one-directional service.
11 August 1981 Withdrawn.
2nd Gen
(1988 - 1990)
19th June 1988 Re-introduced between Bedok and Pasir Ris Dr 6 (loop).
10 December 1989 Amended to Pasir Ris Int.
10 March 1990 Merged with Service 4 and withdrawn under Bus-MRT Rationalisation.
3rd Gen
(1993 - present)
1993 Re-introduced between Tampines and Changi Airport Cargo Cplx (loop).

Service 20

Service Gen Date Service changes
1st Gen
(1971 - 1989)
11 April 1971 Introduced between Opera Estate and Commonwealth Ave/North Buona Vista Rd.
1 December 1971 Handed over to ABS with the revocation of the omnibus license of STC.
1 July 1973 Amended to Chai Chee Ter.
7 March 1977 Extended to Ghim Moh Ter.
15 January 1978 Amended to ply Jln Sultan, Victoria St and Kallang Rd, skipping Jln Kuantan and Jln Sumbawa.
8 September 1985 Extended to Bedok Int with the closure of Chai Chee Ter. At the same time, alternate trips were introduced towards Ghim Moh Terminal via Siglap Dr and Frankel Ave towards Ghim Moh Ter. Return trips to Bedok Int do not serve Frankel Estate.
5 November 1989 Withdrawn under Bus-MRT Rationalisation. Deleted sectors between Beach Rd and Ghim Moh Ter were partially covered by Service 100.
2nd Gen
(1994 - 2000)
1994 Re-introduced between Sims Place and St. George's Estate (loop).
Nov 2000 Merged with Service 125 and withdrawn.
3rd Gen
(2013 - present)
9 June 2013 Re-introduced between Tampines and Changi Business Park Central 2 (Loop) under the LTA's Bus Service Enhancement Programme (BSEP).