History of Services 1 - 20

26 January 1987 - 5 November 1988

 * EB: Jurong East St 13, Jurong East Central, Boon Lay Way, Commonwealth Ave West, Commonwealth Ave, Queensway, Jln Bt Merah, Kg Bahru Rd, Eu Tong Sen St, Hill St, Victoria St, Kallang Rd, Sims Ave, Sims Ave East, New Upp Changi Rd, Bedok North Ave 3, Bedok North Rd
 * WB: Bedok North Rd, Bedok North Ave 3, New Upp Changi Rd, Changi Rd, Geylang Rd, Kallang Rd, Crawford St, North Bridge Rd, South Bridge Rd, Neil Rd, Kg Bahru Rd, Jln Bt Merah, Queensway, Commonwealth Ave, Commonwealth Ave West, Boon Lay Way, Jurong East Central, Jurong East St 13

5 November 1988 - 6 January 1991

 * EB: Jurong East St 13, Jurong East Central, Jurong Town Hall Rd, AYE, Alexandra Rd, Jln Bt Merah, Kg Bahru Rd, Eu Tong Sen St, Hill St, Victoria St, Kallang Rd, Sims Ave, Sims Ave East, New Upp Changi Rd, Bedok North Ave 3, Bedok North Rd
 * WB: Bedok North Rd, Bedok North Ave 3, New Upp Changi Rd, Changi Rd, Geylang Rd, Kallang Rd, Crawford St, North Bridge Rd, South Bridge Rd, Neil Rd, Kg Bahru Rd, Jln Bt Merah, Alexandra Rd, AYE, Jurong Town Hall Rd, Jurong East Central, Jurong East St 13

Service 4
This service originally goes from Bedok to Moulmein Road (Loop).

Was extended from Moulmein Rd to terminate at St Michael's Terminal on 31 July 1988.

Integrated with route 19, plying from Pasir Ris to St Michael's in 1989.

Amended to ply Tampines - St Michael's in 29 November 1992.

St Michael's - Tampines

- St Michael's Ter, Whampoa Rd, Jalan Bahagia, Kim Keat Rd, Balestier Rd, Thomson Rd, Moulmein Rd, Balestier Rd, (Serangoon Rd), Boon Keng Rd, Geylang Lor 1, Sims Ave, Sims Ave East, New Upp Changi Rd, Bedok Nth Ave 3, Bedok Reservoir Rd, Tampines Ave 1, Ave 2, St 11.

- And return via Tampines Int, (Tampines Ctrl 1 and 2), Tampines Ave 5, Ave 1, Bedok Reservoir Rd, Bedok Nth Ave 3, New Upp Changi Rd, Changi Rd, Geylang Rd, (Kallang Rd), Geylang Lor 1, Boon Keng Rd, Bendemeer Rd, Balestier Rd, Moulmein Rd, Thomson Rd, Balaestier Rd, Whampoa Dr, Jalan Bahagia, Whampoa Rd, St Michael's Ter.

Integrated with svc 21 and withdrawn in 1993.

This service was re-introduced on 17 March 2013 under the LTA's Bus Service Enhancement Programme (BSEP), and plies between Tampines Int and Changi North Way.

Service 5
This service originally goes from Bedok (Anglican High School) to Upper Bukit Timah Road.

1979: Shortened to terminate at Lorong 1 Geylang with the new route 9.

1985: Extended to Bukit Panjang (Zhenghua).

Before: Used to ply via Queensway, Commonwealth Avenue, Alexandra Road, Ganges Avenue and Havelock Road.

1992: Amended to ply Margaret Drive, and Alexandra Road.

1995: Handed to Timothy.

26 December 1999: Withdrawn.

Service re-introduced from Pasir Ris to Bukit Merah on 11 March 2007.

Shortened to Changi City Point on 6 November 2011.

Service 6
This service goes from Bedok to New Bridge Road.

Withdrawn in 1983 and replaced by route 3.

Re-introduced from Bukit Panjang and terminating at Orchard since 18 July 1992.

Service 7
This service is originally a semi-express service from Bedok to Dempsey Road (CMPB Carpark). Extended to Clementi in 1982 followed by Jurong East in 20 December 1984. Converted to local service in 29 August 1985.

29 August 1986 - 5 November 1989:

 * EB: Jurong East St 13, Jurong East Central, Boon Lay Way, Commonwealth Ave West, Clementi Ave 2, Clementi Rd, Ulu Pandan Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nicoll Highway, Guillemard Rd, Paya Lebar Rd, Sims Ave, Sims Ave East, New Upp Changi Rd, Bedok North Ave 3, Bedok North Rd
 * WB: Bedok North Rd, Bedok North Ave 3, New Upp Changi Rd, Changi Rd, Guillemard Rd, Nicoll Highway, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Boulevard, Napier Rd, Holland Rd, Ulu Pandan Rd, Clementi Rd, Clementi Ave 2, Commonwealth Ave West, Boon Lay Way, Jurong East Central, Jurong East St 13

5 November 1989 - 7 April 1991

 * EB: Jurong East St 13, Jurong East Central, Boon Lay Way, Commonwealth Ave West, Clementi Ave 2, Clementi Rd, Ulu Pandan Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nicoll Highway, Guillemard Rd, Paya Lebar Rd, PIE, Bedok North Rd
 * WB: Bedok North Rd, PIE, Paya Lebar Rd, Guillemard Rd, Nicoll Highway, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Boulevard, Napier Rd, Holland Rd, Ulu Pandan Rd, Clementi Rd, Clementi Ave 2, Commonwealth Ave West, Boon Lay Way, Jurong East Central, Jurong East St 13

7 April 1991 - 1995

 * EB: Clementi Ave 2, Clementi Rd, Ulu Pandan Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Raffles Blvd
 * WB: Raffles Ave, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Napier Rd, Holland Rd, Ulu Pandan Rd, Clementi Rd, Clementi Ave 2

Service 8
Original service was a semi-express route day service between Bedok Interchange and Robinson Road.

Route changed to go via ECP between Bedok South Ave 1 and Prince Edward Rd but returning via St Andrew’s Rd, Beach Rd, Bras Basah Rd, Nicoll Highway, Moutbatten Rd, Fort Rd, ECP and Bedok South Ave 1.

1987: Return trip amended via Suntec City before going to ECP. Withdrawn in 1989.

Re-introduced from Pasir Ris to Toa Payoh in 1989.

It was amended to ply Tampines - Toa Payoh in 1992.

Route was amended in 1995 (opening of Temasek Polytechnic) to ply:

- (Direction 1) Tampines Ave 1, (Ave 10), Bedok North Rd, Bedok Reservoir Rd instead of Tampines Ave 1, Bedok Reservoir Rd. - (Direction 2) Bedok Reservoir Rd, Bedok North Rd, (Tampines Ave 10), Ave 1 instead of Bedok Reservoir Rd, Tampines Ave 1.

Service 9
Original route was between Lor 1 Geylang and Changi Point (Village).

1981: Breakup of Upp Changi Rd due to Changi Airport construction caused it to be amended via Loyang Ave and Loyang Way.

Integration with 391. Route extended to loop at Changi Airport Cargo Complex.

1987: Amended via Upp Changi Rd East, Simei Rd, Tampines St 31, Ave 2, Ave 7, Loyang Ave. Skipped Bedok Rd, Upp Changi Rd and Loyang Way in both directions.

29th November 1992: Cut short to start from Bedok Interchange due to duplication of Svc 2 and MRT (Kallang - Bedok). Route was amended to ply:

- (Direction 1) Upper Changi Rd East, Simei Ave, Simei St 3, Simei Rd instead of Upper Changi Rd East, Simei Rd.

- (Direction 2) Simei Rd, Simei St 3, Simei Ave, Upper Changi Rd East instead of Simei Rd, Upper Changi Rd East.

Route was again amended to ply:

- (Direction 1) New Upper Changi Rd, Bedok Rd, Upp Changi Rd, Simei Ave.

- (Direction 2) Simei Ave, Upp Changi Rd, Bedok Rd, New Upper Changi Rd.

On 19 November 2011, it was amended to call at the bus stops outside Bedok Station on both directions due to the opening of Bedok Temp Interchange.

Service 10
This service originally goes from Serangoon Gardens to Jurong.

1984: Was shifted from Serangoon Gardens to Tampines Avenue 5

25 March 1987: Was extended to Tampines when Ernest Mok’s family moved to Tampines St 11.

1990: Was shortened to terminate at Clementi when Jurong was closed.

Route was amended to ply via Mountbatten Road, Old Airport Road, Dunman Road, Tanjong Katong Road, and Mountbatten Road.

Was further shortened to ply to Kent Ridge in 1999 when service 189 was introduced.

Service 11
This service originally goes from Serangoon Gardens to New Bridge Road.

It was withdrawn on 23 October 1988. Re-introduced back to ply from Lor 1 Geylang to Kallang Park on 14th April 1990. Route was amended to ply Mountbatten Rd, (Nicoll Highway), Stadium Rd, Stadium Boulevard, Mountbatten Rd instead of Mountbatten Rd, Stadium Boulevard, u-turn at roundabout and return via Stadium Boulevard, Mountbatten Rd. Route was again amended due to building of the Circle Line, to ply along Stadium Rd, Stadium Walk, Stadium Boulevard. With opening of Sims Way, route was amended to ply: - (Direction 1) Sims Ave, Sims Way, (Nicoll Highway) instead of (Lor 1 Geylang), Mountbatten Rd, (Nicoll Highway). - (Direction 2) Mountbatten Rd, Sims Way, Geylang Rd.

Service 12
This service originally goes from Serangoon Gardens to Commonwealth Avenue.

Was shortened to terminate at New Bridge Road to replace the lost link of service 11 in 23 October 1988 and shifted from Serangoon Gardens to Pasir Ris.

1994: Amended to ply via Victoria Street, Hill Street and New Bridge Road, instead of Kallang Road, Crawford Street, North Bridge Road, South Bridge Road and Neil Road.

With the opening of Sims Way, amended to ply via Mountbatten Road, Sims Way, Geylang Road/Sims Avenue, instead of Mountbatten Road, Sims Avenue/Geylang Road.

Service 15
Originally service 15 goes from Marine Terrace to Shenton Way since 1977. Combined with 196 around 1982.

Re-introduced in 2003 between Zi Teng House and TPS E-Hub.

Service 16
This service originally ply between Bukit Merah Interchange and Marine Parade Terminal. Merged with Service 149 and extended to Changi Airport PTB in 1993.

In 1994, introduced Express Service 16E, which plies along ECP. Express Service 16E was renumbered Sv 36 in 1998.

In Sep 1998, shortened back to Marine Parade terminal with the amendments of Svc 36 to Changi Airport PTB.

Amended to loop at Siglap Link on 16th Sept 2001 with the closure of Marine Parade Terminal.

In Feb 2002, amended to ply Stadium Walk/Cres due to construction of Circle Line.

From Sunday 19 August 2007, extended to Bedok Interchange via Upper East Coast Rd, Bedok South Ave 1, Bedok South Rd & Bedok North Ave 1.

On 29th September 2010, Service 16 was amended to Mountbatten Rd skipping bus stops along Stadium Blvd, Stadium Cres, Stadium Rd & Stadium Walk due to the construction of Singapore Sports Hub.

Service 19
Plies between Pasir Ris and Bedok when it first introduced in 19 June 1988. Merged with service 4 in 1990.

Re-introduced again on 1992, when service 29 was shortened from Changi Airport Cargo Complex to Changi Village.

Became partial air-con in 1998 and moved to fully air-con in 2004.

Service 20
This service existed three times. This service originally plies between Fidelio Street and Commonwealth Avenue, before changing to Kampong Chai Chee - Ghim Moh in 1975 and subsequently Bedok Int - Ghim Moh in 1980.

Re-introduced again in 1994 as a loop service between Sims Place Terminal and St. George's Estate. Use Mercedes-Benz 811D minibus in the past. Merged with Service 125 in 2000 and withdrawn.

Re-introduced on 9 June 2013 under the LTA's Bus Service Enhancement Programme (BSEP), this service plies between Azalea Park and Changi Business Park.