This article reflects the changes in routes for operational trunk bus services in Singapore. For more information on the exact operating hours and calling bus stops of trunk bus services, please click on the links to their individual bus service articles attached in their headings.
SBS Transit Bus Service 170 (since 11 Apr 1971)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2024 | Queen St Terminal, Queen St, Arab St, Weld Rd, Jln Besar, Rochor Canal Rd, Bt Timah Rd, Upp Bt Timah Rd, Woodlands Rd, Woodlands Ctr Rd, Woodlands Checkpt, Causeway, Johor Bahru Checkpt, Jln Lingkaran Dalam, Jln Tun Abdul Razak, Jln Datin Halimah and Larkin Terminal. | Larkin Terminal, Jln Datin Halimah, Jln Tun Abdul Razak, Jln Lingkaran Dalam, Johor Bahru Checkpt, Causeway, Woodlands Checkpt, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Dunearn Rd, Bt Timah Rd, Sungei Rd, Rochor Canal Rd, Ban San St and Queen St Terminal. |
| 2021 | Queen St Terminal, Queen St, Rochor Rd, Rochor Canal Rd, Bt Timah Rd, Upp Bt Timah Rd, Woodlands Rd, Woodlands Ctr Rd, Woodlands Checkpt, Causeway, Johor Bahru Checkpt, Jln Lingkaran Dalam, Jln Tun Abdul Razak, Jln Datin Halimah and Larkin Terminal. | Larkin Terminal, Jln Datin Halimah, Jln Tun Abdul Razak, Jln Lingkaran Dalam, Johor Bahru Checkpt, Causeway, Woodlands Checkpt, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Dunearn Rd, Bt Timah Rd, Sungei Rd, Rochor Canal Rd, Ban San St and Queen St Terminal. |
| 2003 | Queen St Terminal, Queen St, Rochor Rd, Rochor Canal Rd, Bt Timah Rd, Upp Bt Timah Rd, Woodlands Rd, Woodlands Ctr Rd, Woodlands Checkpt, Causeway, Johor Bahru Checkpt, Jln Lingkaran Dalam, Jln Tun Abdul Razak, Jln Datin Halimah and Larkin Terminal. | Larkin Terminal, Jln Datin Halimah, Jln Tun Abdul Razak, Jln Lingkaran Dalam, Johor Bahru Checkpt, Causeway, Woodlands Checkpt, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Bt Timah Rd, Sungei Rd, Rochor Canal Rd, Ban San St and Queen St Terminal. |
| 1996 | Queen St Terminal, Queen St, Rochor Rd, Rochor Canal Rd, Bt Timah Rd, Upp Bt Timah Rd, Woodlands Rd, Woodlands Checkpt, Causeway, Johor Bahru Checkpt, Jln Wong Ah Fook, Jln Gertak Merah, Jln Abu Bakar, Jln Tun Abdul Razak, Jln Datin Halimah and Larkin Terminal. | Larkin Terminal, Jln Datin Halimah, Jln Tun Abdul Razak, Johor Bahru Checkpt, Causeway, Woodlands Checkpt, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Bt Timah Rd, Sungei Rd, Rochor Canal Rd, Ban San St and Queen St Terminal. |
| 1985 | Queen St Terminal, Queen St, Rochor Rd, Rochor Canal Rd, Bt Timah Rd, Upp Bt Timah Rd, Woodlands Rd, Woodlands Checkpt, Causeway, Johor Bahru Checkpt, Jln Selat Tebrau, Jln Wong Ah Fook, Jln Greja, Jln Ngee Heng and Johore Bahru Terminal. | Johore Bahru Terminal, Jln Gertak Merah, Jln Terus, Jln Ibrahim, Jln Wong Ah Fook, Jln Stn, Jln Campbell, Johor Bahru Checkpt, Causeway, Woodlands Checkpt, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Bt Timah Rd, Sungei Rd, Rochor Canal Rd, Ban San St and Queen St Terminal. |
| 1979 | Queen St, Rochor Rd, Rochor Canal Rd, Bt Timah Rd, Upp Bt Timah Rd, Woodlands Rd, Woodlands Checkpt, Causeway, Johor Bahru Checkpt, Jln Selat Tebrau, Jln Wong Ah Fook, Jln Greja, Jln Ngee Heng and Johore Bahru Terminal. | Johore Bahru Terminal, Jln Gertak Merah, Jln Terus, Jln Ibrahim, Jln Wong Ah Fook, Jln Stn, Jln Campbell, Johor Bahru Checkpt, Causeway, Woodlands Checkpt, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Bt Timah Rd, Sungei Rd, Ophir Rd and Queen St. |
| 1971 | Queen St, Rochor Canal Rd, Bencoolen St, Middle Rd, Selegie Rd, MacKenzie Rd, Bt Timah Rd, Upp Bt Timah Rd, Woodlands Rd, Woodlands Checkpt, Causeway, Johor Bahru Checkpt, Jln Selat Tebrau, Jln Wong Ah Fook, Jln Greja, Jln Ngee Heng and Johore Bahru Terminal. | Johore Bahru Terminal, Jln Gertak Merah, Jln Terus, Jln Ibrahim, Jln Wong Ah Fook, Jln Stn, Jln Campbell, Johor Bahru Checkpt, Causeway, Woodlands Checkpt, Woodlands Rd, Upp Bt Timah Rd, Dunearn Rd, Bt Timah Rd, Rochor Canal Rd, Rochor Rd and Queen St. |
SBS Transit Bus Service 170X (since 10 Nov 2003)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2015 | Woodlands Rd, Woodlands Checkpt, Causeway, Johor Bahru Checkpt, Jln Lingkaran Dalam, Lebuhraya Sultan Iskandar, Jln Jim Quee and JB Sentral Terminal. | JB Sentral Terminal, Jln Jim Quee, Jln Tanjung Puteri, Jln Lingkaran Dalam, Johor Bahru Checkpt, Causeway, Woodlands Checkpt and Woodlands Rd. |
| 2014 | Woodlands Rd, Woodlands Checkpt, Causeway, Johor Bahru Checkpt, Jln Lingkaran Dalam, Lebuhraya Tebrau and Jln Tun Abdul Razak (Loop) | Jln Lingkaran Dalam, Johor Bahru Checkpt, Causeway, Woodlands Checkpt and Woodlands Rd. |
| 2003 | Woodlands Rd, Woodlands Checkpt, Causeway, Johor Bahru Checkpt, Jln Lingkaran Dalam, Lebuhraya Tebrau, Jln Tun Abdul Razak, Persiaran Tun Sri Lanang, Jln Ayer Molek, Jln Seri Lalang, Jln Gertak Merah, Jln Gereja, Jln Trus and Kotaraya II Terminal. | Kotaraya II Terminal, Jln Trus, Jln Sulaiman, Jln Wong Ah Fook, Jln Tun Abdul Razak, Jln Lingkaran Dalam, Johor Bahru Checkpt, Causeway, Woodlands Checkpt and Woodlands Rd. |
Tower Transit Bus Service 171 (since 11 Apr 1971)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2020 | Yishun Interchange, Yishun Ave 2, Yishun Ave 5, Sembawang Rd, Mandai Ave, Mandai Rd, BKE, Bt Panjang Rd, Pending Rd, Petir Rd, Jelebu Rd, Bt Panjang Rd and Upp Bt Timah Rd (Loop) | Petir Rd, Pending Rd, Bt Panjang Rd, BKE, Mandai Rd, Mandai Ave, Sembawang Rd, Yishun Ave 5, Yishun Ave 2 and Yishun Interchange. |
| 2019 | Yishun Interchange, Yishun Ave 2, Yishun Ave 5, Sembawang Rd, Mandai Ave, Mandai Rd, BKE, Bt Panjang Rd, Pending Rd, Petir Rd, Jelebu Rd, Bt Panjang Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Scotts Rd, Orchard Rd, Bras Basah Rd, Raffles Blvd and Marina Ctr Terminal. | Marina Ctr Terminal, Raffles Blvd, Raffles Ave, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Lk, Orchard Turn, Orchard Blvd, Paterson Rd, Scotts Rd, Bt Timah Rd, Upp Bt Timah Rd, Bt Panjang Rd, Jelebu Rd, Petir Rd, Pending Rd, Bt Panjang Rd, BKE, Mandai Rd, Mandai Ave, Sembawang Rd, Yishun Ave 5, Yishun Ave 2 and Yishun Interchange. |
| 2015 | Yishun Interchange, Yishun Ctrl 1, Yishun Ctrl, Yishun Ave 5, Sembawang Rd, Mandai Ave, Mandai Rd, BKE, Bt Panjang Rd, Pending Rd, Petir Rd, Jelebu Rd, Bt Panjang Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Scotts Rd, Orchard Rd, Bras Basah Rd, Raffles Blvd and Marina Ctr Terminal. | Marina Ctr Terminal, Raffles Blvd, Raffles Ave, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Lk, Orchard Turn, Orchard Blvd, Paterson Rd, Scotts Rd, Bt Timah Rd, Upp Bt Timah Rd, Bt Panjang Rd, Jelebu Rd, Petir Rd, Pending Rd, Bt Panjang Rd, BKE, Mandai Rd, Mandai Ave, Sembawang Rd, Yishun Ave 5, Yishun Ctrl and Yishun Interchange. |
| 2005 | Yishun Interchange, Yishun Ctrl 1, Yishun Ctrl, Yishun Ave 5, Sembawang Rd, Mandai Ave, Mandai Rd, BKE, Bt Panjang Rd, Pending Rd, Petir Rd, Jelebu Rd, Bt Panjang Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Scotts Rd, Orchard Rd, Bras Basah Rd, Raffles Blvd and Marina Ctr Terminal. | Marina Ctr Terminal, Raffles Blvd, Raffles Ave, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Lk, Orchard Turn, Orchard Blvd, Paterson Rd, Scotts Rd, Bt Timah Rd, Upp Bt Timah Rd, Bt Panjang Rd, Jelebu Rd, Petir Rd, Pending Rd, Bt Panjang Rd, BKE, Mandai Rd, Mandai Ave, Sembawang Rd, Yishun Ave 5, Yishun Ave 2 and Yishun Interchange. |
| 1999 | Yishun Interchange, Yishun Ctrl 1, Yishun Ctrl, Yishun Ave 5, Sembawang Rd, Mandai Ave, Mandai Rd, BKE, Bt Panjang Rd, Pending Rd, Petir Rd, Jelebu Rd, Bt Panjang Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Scotts Rd, Orchard Rd, Bras Basah Rd, Raffles Blvd and Marina Ctr Terminal. | Marina Ctr Terminal, Raffles Blvd, Raffles Ave, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Orchard Turn, Orchard Blvd, Paterson Rd, Scotts Rd, Bt Timah Rd, Upp Bt Timah Rd, Bt Panjang Rd, Jelebu Rd, Petir Rd, Pending Rd, Bt Panjang Rd, BKE, Mandai Rd, Mandai Ave, Sembawang Rd, Yishun Ave 5, Yishun Ave 2 and Yishun Interchange. |
| 1995 | Yishun Interchange, Yishun Ctrl 1, Yishun Ctrl, Yishun Ave 5, Sembawang Rd, Mandai Ave, Mandai Rd, Woodlands Rd, Bt Panjang Rd, Pending Rd, Petir Rd, Cashew Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Scotts Rd, Orchard Rd, Bras Basah Rd, Raffles Blvd and Marina Ctr Terminal. | Marina Ctr Terminal, Raffles Blvd, Raffles Ave, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Orchard Turn, Orchard Blvd, Paterson Rd, Scotts Rd, Bt Timah Rd, Upp Bt Timah Rd, Cashew Rd, Petir Rd, Pending Rd, Bt Panjang Rd, Woodlands Rd, Mandai Rd, Mandai Ave, Sembawang Rd, Yishun Ave 5, Yishun Ave 2 and Yishun Interchange. |
| 1994 | Yishun Interchange, Yishun Ctrl 1, Yishun Ctrl, Yishun Ave 5, Sembawang Rd, Mandai Ave, Mandai Rd, Woodlands Rd, Bt Panjang Rd, Pending Rd, Petir Rd, Cashew Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Scotts Rd, Orchard Rd, Bras Basah Rd, Raffles Blvd and Marina Ctr Terminal. | Marina Ctr Terminal, Raffles Blvd, Raffles Ave, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Orchard Lk, Orchard Blvd, Paterson Rd, Scotts Rd, Bt Timah Rd, Upp Bt Timah Rd, Cashew Rd, Petir Rd, Pending Rd, Bt Panjang Rd, Woodlands Rd, Mandai Rd, Mandai Ave, Sembawang Rd, Yishun Ave 5, Yishun Ave 2 and Yishun Interchange. |
| 1993 | Yishun Interchange, Yishun Ctrl 1, Yishun Ctrl, Yishun Ave 5, Sembawang Rd, Mandai Rd, Mandai Lake Rd, Mandai Rd, Woodlands Rd, Bt Panjang Rd, Pending Rd, Petir Rd, Cashew Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Scotts Rd, Orchard Rd, Bras Basah Rd, Raffles Blvd and Marina Ctr Terminal. | Marina Ctr Terminal, Raffles Blvd, Raffles Ave, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Orchard Lk, Orchard Blvd, Paterson Rd, Scotts Rd, Bt Timah Rd, Upp Bt Timah Rd, Cashew Rd, Petir Rd, Pending Rd, Bt Panjang Rd, Woodlands Rd, Mandai Rd, Mandai Lake Rd, Mandai Rd, Sembawang Rd, Yishun Ave 5, Yishun Ave 2 and Yishun Interchange. |
| 1992 | Yishun Interchange, Yishun Ctrl 1, Yishun Ctrl, Yishun Ave 5, Sembawang Rd, Mandai Rd, Mandai Lake Rd, Mandai Rd, Woodlands Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Scotts Rd, Orchard Rd, Bras Basah Rd, Victoria St, Rochor Rd, Rochor Canal Rd, Ban San St and Queen St Terminal. | Queen St Terminal, Queen St, Ophir Rd, Nth Bridge Rd, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Orchard Lk, Orchard Blvd, Paterson Rd, Scotts Rd, Bt Timah Rd, Upp Bt Timah Rd, Woodlands Rd, Mandai Rd, Mandai Lake Rd, Mandai Rd, Sembawang Rd, Yishun Ave 5, Yishun Ave 2 and Yishun Interchange. |
| 1987 | Yishun Interchange, Yishun Ctrl 1, Yishun Ctrl, Yishun Ave 5, Sembawang Rd, Mandai Rd, Mandai Lake Rd, Mandai Rd, Woodlands Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Scotts Rd, Orchard Rd, Bras Basah Rd, Victoria St, Rochor Rd, Rochor Canal Rd, Ban San St and Queen St Terminal. | Queen St Terminal, Queen St, Ophir Rd, Nth Bridge Rd, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Paterson Rd, Scotts Rd, Bt Timah Rd, Upp Bt Timah Rd, Woodlands Rd, Mandai Rd, Mandai Lake Rd, Mandai Rd, Sembawang Rd, Yishun Ave 5, Yishun Ave 2 and Yishun Interchange. |
| 1985 | Sembawang Terminal, Sembawang Rd, Mandai Rd, Mandai Lake Rd, Mandai Rd, Woodlands Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Scotts Rd, Orchard Rd, Bras Basah Rd, Victoria St, Rochor Rd, Rochor Canal Rd, Ban San St and Queen St Terminal. | Queen St Terminal, Queen St, Ophir Rd, Nth Bridge Rd, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Paterson Rd, Scotts Rd, Bt Timah Rd, Upp Bt Timah Rd, Woodlands Rd, Mandai Rd, Mandai Lake Rd, Mandai Rd, Sembawang Rd and Sembawang Terminal. |
| 1984 | Mandai Rd, Mandai Lake Rd, Mandai Rd, Woodlands Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Scotts Rd, Orchard Rd, Bras Basah Rd, Victoria St, Arab St and Queen St. | Queen St, Ophir Rd, Nth Bridge Rd, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Paterson Rd, Scotts Rd, Bt Timah Rd, Upp Bt Timah Rd, Woodlands Rd, Mandai Rd, Mandai Lake Rd and Mandai Rd. |
| 1979 | Mandai Rd, Mandai Lake Rd, Mandai Rd, Woodlands Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Bt Timah Rd, Sungei Rd, Ophir Rd, Ban San St and Queen St. | Queen St, Rochor Canal Rd, Bt Timah Rd, Upp Bt Timah Rd, Woodlands Rd, Mandai Rd, Mandai Lake Rd and Mandai Rd. |
| 1973 | Mandai Rd, Mandai Lake Rd, Mandai Rd, Woodlands Rd, Upp Bt Timah Rd, Dunearn Rd, Bt Timah Rd, Rochor Canal Rd, Rochor Rd and Queen St. | Queen St, Rochor Canal Rd, Bencoolen St, Middle Rd, Selegie Rd, MacKenzie Rd, Bt Timah Rd, Upp Bt Timah Rd, Woodlands Rd, Mandai Rd, Mandai Lake Rd and Mandai Rd. |
| 1971 | Mandai Rd, Woodlands Rd, Upp Bt Timah Rd, Dunearn Rd, Bt Timah Rd, Rochor Canal Rd, Rochor Rd and Queen St. | Queen St, Rochor Canal Rd, Bencoolen St, Middle Rd, Selegie Rd, MacKenzie Rd, Bt Timah Rd, Upp Bt Timah Rd, Woodlands Rd and Mandai Rd. |
SMRT Bus Service 172 (since 11 Apr 1971)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2009 | Boon Lay Interchange, Jurong West Ctrl 3, Jurong West St 64, Boon Lay Way, Jln Boon Lay, Jln Bahar, Old Choa Chu Kang Rd, Sg Tengah Rd, Brickland Rd, Choa Chu Kang Ave 3, Choa Chu Kang Ave 1, Choa Chu Kang Dr, Choa Chu Kang Loop and Choa Chu Kang Interchange. | Choa Chu Kang Interchange, Choa Chu Kang Loop, Choa Chu Kang Ave 4, Choa Chu Kang Dr, Choa Chu Kang Ave 1, Choa Chu Kang Ave 3, Brickland Rd, Sg Tengah Rd, Old Choa Chu Kang Rd, Jln Bahar, Jln Boon Lay, Boon Lay Way, Jurong West St 64, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 2006 | Boon Lay Interchange, Jurong West St 64, Jurong West Ctrl 3, Jln Boon Lay, Jln Bahar, Old Choa Chu Kang Rd, Sg Tengah Rd, Brickland Rd, Choa Chu Kang Ave 3, Choa Chu Kang Ave 1, Choa Chu Kang Dr, Choa Chu Kang Loop and Choa Chu Kang Interchange. | Choa Chu Kang Interchange, Choa Chu Kang Loop, Choa Chu Kang Ave 4, Choa Chu Kang Dr, Choa Chu Kang Ave 1, Choa Chu Kang Ave 3, Brickland Rd, Sg Tengah Rd, Old Choa Chu Kang Rd, Jln Bahar, Jln Boon Lay, Boon Lay Way, Jurong West St 64 and Boon Lay Interchange. |
| 1999 | Boon Lay Interchange, Jurong West Ctrl 3, Jln Boon Lay, Jln Bahar, Choa Chu Kang Rd, Sg Tengah Rd, Brickland Rd, Choa Chu Kang Ave 3, Choa Chu Kang Ave 1, Choa Chu Kang Dr, Choa Chu Kang Loop and Choa Chu Kang Interchange. | Choa Chu Kang Interchange, Choa Chu Kang Loop, Choa Chu Kang Ave 4, Choa Chu Kang Dr, Choa Chu Kang Ave 1, Choa Chu Kang Ave 3, Brickland Rd, Sg Tengah Rd, Choa Chu Kang Rd, Jln Bahar, Jln Boon Lay, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 1994 | Boon Lay Interchange, Jurong West Ctrl 3, Jln Boon Lay, Jln Bahar, Choa Chu Kang Rd, Sg Tengah Rd, Brickland Rd, Choa Chu Kang Ave 3, Choa Chu Kang Ave 1, Choa Chu Kang Way, Choa Chu Kang Rd, Upp Bt Timah Rd and Jln Anak Bt (Loop) | Upp Bt Timah Rd, Choa Chu Kang Rd, Choa Chu Kang Way, Choa Chu Kang Ave 1, Choa Chu Kang Ave 3, Brickland Rd, Sg Tengah Rd, Choa Chu Kang Rd, Jln Bahar, Jln Boon Lay, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 1993 | Boon Lay Interchange, Jurong West Ctrl 3, Jln Boon Lay, Jln Bahar, Choa Chu Kang Rd, Choa Chu Kang Way, Choa Chu Kang Rd, Upp Bt Timah Rd and Jln Anak Bt (Loop) | Upp Bt Timah Rd, Choa Chu Kang Rd, Choa Chu Kang Way, Choa Chu Kang Rd, Jln Bahar, Jln Boon Lay, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 1991 | Lim Chu Kang Terminal, Lim Chu Kang Rd, Old Lim Chu Kang Rd, Lim Chu Kang Rd, Choa Chu Kang Rd, Choa Chu Kang Way, Choa Chu Kang Rd, Upp Bt Timah Rd and Jln Anak Bt (Loop) | Upp Bt Timah Rd, Choa Chu Kang Rd, Choa Chu Kang Way, Choa Chu Kang Rd, Lim Chu Kang Rd, Old Lim Chu Kang Rd, Lim Chu Kang Rd and Lim Chu Kang Terminal. |
| 1987 | Lim Chu Kang Terminal, Lim Chu Kang Rd, Old Lim Chu Kang Rd, Lim Chu Kang Rd, Choa Chu Kang Rd, Choa Chu Kang Way, Choa Chu Kang Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Bt Timah Rd, Sungei Rd, Bencoolen St, Bras Basah Rd, Nicoll Highway, Connaught Dr, Fullerton Rd, Collyer Quay, Raffles Quay, Shenton Way, Palmer Rd and Shenton Way Terminal. | Shenton Way Terminal, Palmer Rd, Anson Rd, Cecil St, Collyer Quay, Fullerton Rd, Empress Pl, St. Andrew’s Rd, Coleman St, Hill St, Victoria St, Middle Rd, Selegie Rd, Bt Timah Rd, Upp Bt Timah Rd, Choa Chu Kang Rd, Choa Chu Kang Way, Choa Chu Kang Rd, Lim Chu Kang Rd, Old Lim Chu Kang Rd, Lim Chu Kang Rd and Lim Chu Kang Terminal. |
| 1980 | Lim Chu Kang Terminal, Lim Chu Kang Rd, Choa Chu Kang Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Bt Timah Rd, Sungei Rd, Bencoolen St, Bras Basah Rd, Nicoll Highway, Connaught Dr, Fullerton Rd, Collyer Quay, Raffles Quay, Shenton Way, Maxwell Rd, Prince Edward Lk and Prince Edward Terminal. | Prince Edward Terminal, Prince Edward Rd, Anson Rd, Cecil St, Collyer Quay, Fullerton Rd, Empress Pl, St. Andrew’s Rd, Coleman St, Hill St, Victoria St, Middle Rd, Selegie Rd, Bt Timah Rd, Upp Bt Timah Rd, Choa Chu Kang Rd, Lim Chu Kang Rd and Lim Chu Kang Terminal. |
| 1979 | Lim Chu Kang Rd, Choa Chu Kang Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Bt Timah Rd, Sungei Rd, Bencoolen St, Bras Basah Rd, Nicoll Highway, Connaught Dr, Fullerton Rd, Collyer Quay, Raffles Quay, Shenton Way and Prince Edward Rd. | Prince Edward Rd, Shenton Way, Palmer Rd, Anson Rd, Cecil St, Collyer Quay, Fullerton Rd, Empress Pl, St. Andrew’s Rd, Coleman St, Hill St, Victoria St, Middle Rd, Selegie Rd, MacKenzie Rd, Bt Timah Rd, Upp Bt Timah Rd, Choa Chu Kang Rd and Lim Chu Kang Rd. |
| 1974 | Lim Chu Kang Rd, Choa Chu Kang Rd, Upp Bt Timah Rd, Dunearn Rd, Bt Timah Rd, Rochor Canal Rd, Bencoolen St, Bras Basah Rd, Nicoll Highway, Connaught Dr, Fullerton Rd, Collyer Quay, Raffles Quay, Shenton Way and Prince Edward Rd. | Prince Edward Rd, Shenton Way, Parsi Rd, Anson Rd, Cecil St, Collyer Quay, Fullerton Rd, Empress Pl, St. Andrew’s Rd, Coleman St, Hill St, Victoria St, Middle Rd, Selegie Rd, MacKenzie Rd, Bt Timah Rd, Upp Bt Timah Rd, Choa Chu Kang Rd and Lim Chu Kang Rd. |
| 1971 | Lim Chu Kang Rd, Choa Chu Kang Rd, U-turn at Kg Berih, Choa Chu Kang Rd, Upp Bt Timah Rd, Dunearn Rd, Bt Timah Rd, Rochor Canal Rd, Bencoolen St, Bras Basah Rd, Nicoll Highway, Connaught Dr, Fullerton Rd, Collyer Quay, Raffles Quay, Shenton Way and Prince Edward Rd. | Prince Edward Rd, Shenton Way, Parsi Rd, Anson Rd, Robinson Rd, Market St, Collyer Quay, Fullerton Rd, Empress Pl, St. Andrew’s Rd, Coleman St, Hill St, Victoria St, Middle Rd, Selegie Rd, MacKenzie Rd, Bt Timah Rd, Upp Bt Timah Rd, Choa Chu Kang Rd, U-turn at Kg Berih, Choa Chu Kang Rd and Lim Chu Kang Rd. |
Tower Transit Bus Service 173 (since 11 Apr 1971)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2015 | Bt Batok Interchange, Bt Batok Ctrl, Bt Batok Ave 1, Bt Batok East Ave 6, Bt Batok St 21, Bt Batok East Ave 4, Bt Batok East Ave 2, Hillview Ave, Jln Remaja, Jln Batu Nilam, Elizabeth Dr, Hillview Ave, Hume Ave, Upp Bt Timah Rd, Jln Jurong Kechil, Toh Tuck Rd, Toh Tuck Terr, Lor Kismis, Toh Tuck Rise, Toh Tuck Rd, Toh Tuck Ave, Commonwealth Ave West, Clementi Ave 3 and Clementi Interchange (Loop) | Clementi Ave 3, Commonwealth Ave West, Toh Tuck Ave, Toh Tuck Rd, Toh Tuck Rise, Lor Kismis, Toh Tuck Terr, Toh Tuck Rd, Jln Jurong Kechil, Upp Bt Timah Rd, Hume Ave, Hillview Ave, Elizabeth Dr, Jln Batu Nilam, Jln Remaja, Hillview Ave, Bt Batok East Ave 2, Bt Batok East Ave 4, Bt Batok St 21, Bt Batok East Ave 6, Bt Batok Ave 1, Bt Batok Ctrl and Bt Batok Interchange. |
| 2006 | Bt Batok Interchange, Bt Batok Ctrl, Bt Batok Ave 1, Bt Batok East Ave 6, Bt Batok St 21, Bt Batok East Ave 4, Bt Batok East Ave 2, Hillview Ave, Jln Remaja, Jln Batu Nilam, Elizabeth Dr, Hillview Ave, Hume Ave, Upp Bt Timah Rd, Jln Anak Bt, Jln Jurong Kechil, Toh Tuck Rd, Toh Tuck Terr, Lor Kismis, Toh Tuck Rise, Toh Tuck Rd, Toh Tuck Ave, Commonwealth Ave West, Clementi Ave 3 and Clementi Interchange (Loop) | Clementi Ave 3, Commonwealth Ave West, Toh Tuck Ave, Toh Tuck Rd, Toh Tuck Rise, Lor Kismis, Toh Tuck Terr, Toh Tuck Rd, Jln Jurong Kechil, Upp Bt Timah Rd, Hume Ave, Hillview Ave, Elizabeth Dr, Jln Batu Nilam, Jln Remaja, Hillview Ave, Bt Batok East Ave 2, Bt Batok East Ave 4, Bt Batok St 21, Bt Batok East Ave 6, Bt Batok Ave 1, Bt Batok Ctrl and Bt Batok Interchange. |
| 1993 | Bt Batok Interchange, Bt Batok Ctrl, Bt Batok St 21, Bt Batok East Ave 4, Bt Batok East Ave 2, Hillview Ave, Jln Remaja, Jln Batu Nilam, Elizabeth Dr, Hillview Ave, Hillview Rd, Upp Bt Timah Rd, Jln Anak Bt, Jln Jurong Kechil, Toh Tuck Rd, Toh Tuck Terr, Lor Kismis, Toh Tuck Rise, Toh Tuck Rd, Toh Tuck Ave, Commonwealth Ave West, Clementi Ave 3 and Clementi Interchange (Loop) | Clementi Ave 3, Commonwealth Ave West, Toh Tuck Ave, Toh Tuck Rd, Toh Tuck Rise, Lor Kismis, Toh Tuck Terr, Toh Tuck Rd, Jln Jurong Kechil, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Elizabeth Dr, Jln Batu Nilam, Jln Remaja, Hillview Ave, Bt Batok East Ave 2, Bt Batok East Ave 4, Bt Batok St 21, Bt Batok Ctrl and Bt Batok Interchange. |
| 1992 | Bt Batok Interchange, Bt Batok Ctrl, Bt Batok St 21, Bt Batok East Ave 4, Bt Batok East Ave 2, Hillview Ave, Jln Remaja, Jln Batu Nilam, Elizabeth Dr, Hillview Ave, Hillview Rd, Upp Bt Timah Rd, Jln Anak Bt, Jln Jurong Kechil, Toh Tuck Rd, Toh Tuck Terr, Lor Kismis, Toh Tuck Rise, Toh Tuck Rd, Toh Tuck Ave, Commonwealth Ave West, Clementi Ave 3 and Clementi Interchange. | Clementi Interchange, Clementi Ave 3, Commonwealth Ave West, Toh Tuck Ave, Toh Tuck Rd, Toh Tuck Rise, Lor Kismis, Toh Tuck Terr, Toh Tuck Rd, Jln Jurong Kechil, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Elizabeth Dr, Jln Batu Nilam, Jln Remaja, Hillview Ave, Bt Batok East Ave 2, Bt Batok East Ave 4, Bt Batok St 21, Bt Batok Ctrl and Bt Batok Interchange. |
| 1991 | Bt Batok Interchange, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 4, Bt Batok East Ave 2, Hillview Ave, Jln Remaja, Jln Batu Nilam, Elizabeth Dr, Hillview Ave, Hillview Rd, Upp Bt Timah Rd, Jln Anak Bt, Jln Jurong Kechil, Toh Tuck Rd, Toh Tuck Terr, Lor Kismis, Toh Tuck Rise, Toh Tuck Rd, Toh Tuck Ave, Commonwealth Ave West, Clementi Ave 3 and Clementi Interchange. | Clementi Interchange, Clementi Ave 3, Commonwealth Ave West, Toh Tuck Ave, Toh Tuck Rd, Toh Tuck Rise, Lor Kismis, Toh Tuck Terr, Toh Tuck Rd, Jln Jurong Kechil, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Elizabeth Dr, Jln Batu Nilam, Jln Remaja, Hillview Ave, Bt Batok East Ave 2, Bt Batok East Ave 4, Bt Batok East Ave 3, Bt Batok Ctrl and Bt Batok Interchange. |
| 1990 | Bt Batok Interchange, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 4, Bt Batok East Ave 2, Hillview Ave, Jln Remaja, Jln Batu Nilam, Elizabeth Dr, Hillview Ave, Hillview Rd, Upp Bt Timah Rd and Jln Anak Bt (Loop) | Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Elizabeth Dr, Jln Batu Nilam, Jln Remaja, Hillview Ave, Bt Batok East Ave 2, Bt Batok East Ave 4, Bt Batok East Ave 3, Bt Batok Ctrl and Bt Batok Interchange. |
| 1987 | Princess Elizabeth Terminal, Elizabeth Dr, Jln Batu Nilam, Jln Remaja, Hillview Ave, Hillview Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Stevens Rd, Scotts Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Neil Rd, Eu Tong Sen St and New Bridge Rd Terminal. | New Bridge Rd Terminal, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Paterson Rd, Scotts Rd, Stevens Rd, Bt Timah Rd, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Jln Remaja, Jln Batu Nilam, Elizabeth Dr and Princess Elizabeth Terminal. |
| 1979 | Princess Elizabeth Terminal, Elizabeth Dr, Jln Batu Nilam, Jln Remaja, Hillview Ave, Hillview Rd, Upp Bt Timah Rd, Jln Anak Bt, Dunearn Rd, Stevens Rd, Scotts Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Neil Rd, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, New Bridge Rd, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Paterson Rd, Scotts Rd, Stevens Rd, Bt Timah Rd, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Jln Remaja, Jln Batu Nilam, Elizabeth Dr and Princess Elizabeth Terminal. |
| 1974 | Elizabeth Dr, Jln Batu Nilam, Jln Remaja, Hillview Ave, Hillview Rd, Upp Bt Timah Rd, Dunearn Rd, Stevens Rd, Scotts Rd, Orchard Rd, Dhoby Ghaut, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Neil Rd and New Bridge Rd. | New Bridge Rd, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Paterson Rd, Scotts Rd, Stevens Rd, Bt Timah Rd, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Jln Remaja, Jln Batu Nilam and Elizabeth Dr. |
| 1971 | Elizabeth Dr, Jln Batu Nilam, Jln Remaja, Hillview Ave, Hillview Rd, Upp Bt Timah Rd, Dunearn Rd, Stevens Rd, Scotts Rd, Orchard Rd, Dhoby Ghaut, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Neil Rd and New Bridge Rd. | New Bridge Rd, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Rd, Scotts Rd, Stevens Rd, Bt Timah Rd, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Jln Remaja, Jln Batu Nilam and Elizabeth Dr. |
Tower Transit Bus Service 173A (since 5 Nov 2007)
| Year | Route (Last Bus: One-Directional) |
| 2007 | Bt Batok Interchange, Bt Batok Ctrl, Bt Batok Ave 1, Bt Batok East Ave 6, Bt Batok St 21 and Bt Batok East Ave 4 (terminating at Blk 254). |
SBS Transit Bus Service 174 (since 11 Apr 1971)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2020 | Boon Lay Interchange, Jurong West Ctrl 3, Jln Boon Lay, Boon Lay Ave, Corporation Rd, Jurong West Ave 2, PIE, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Upp Cross St, Chin Swee Rd, Outram Rd, New Bridge Rd, Kg Bahru Rd, Spooner Rd and Kampong Bahru Terminal. | Kampong Bahru Terminal, Spooner Rd, Kg Bahru Rd, Eu Tong Sen St, Outram Rd, Chin Swee Rd, Havelock Rd, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, PIE, Jurong West Ave 2, Corporation Rd, Boon Lay Ave, Jln Boon Lay, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 2018 | Boon Lay Interchange, Jurong West Ctrl 3, Jln Boon Lay, Boon Lay Ave, Corporation Rd, Jurong West Ave 2, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Upp Cross St, Chin Swee Rd, Outram Rd, New Bridge Rd, Kg Bahru Rd, Spooner Rd and Kampong Bahru Terminal. | Kampong Bahru Terminal, Spooner Rd, Kg Bahru Rd, Eu Tong Sen St, Outram Rd, Chin Swee Rd, Havelock Rd, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, Jurong West Ave 2, Corporation Rd, Boon Lay Ave, Jln Boon Lay, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 2014 | Boon Lay Interchange, Jurong West Ctrl 3, Jln Boon Lay, Boon Lay Ave, Corporation Rd, Jurong West Ave 2, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Upp Cross St, Chin Swee Rd, Outram Rd, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, Eu Tong Sen St, Outram Rd, Chin Swee Rd, Havelock Rd, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, Jurong West Ave 2, Corporation Rd, Boon Lay Ave, Jln Boon Lay, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 2012 | Boon Lay Interchange, Jurong West Ctrl 3, Jln Boon Lay, Boon Lay Ave, Corporation Rd, Jurong West Ave 2, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Upp Bt Timah Rd, Bt Timah Lk, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Upp Cross St, Chin Swee Rd, Outram Rd, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, Eu Tong Sen St, Outram Rd, Chin Swee Rd, Havelock Rd, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, Jurong West Ave 2, Corporation Rd, Boon Lay Ave, Jln Boon Lay, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 2009 | Boon Lay Interchange, Jurong West Ctrl 3, Jln Boon Lay, Boon Lay Ave, Corporation Rd, Jurong West Ave 2, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Upp Cross St, Chin Swee Rd, Outram Rd, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, Eu Tong Sen St, Outram Rd, Chin Swee Rd, Havelock Rd, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, Jurong West Ave 2, Corporation Rd, Boon Lay Ave, Jln Boon Lay, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 2006 | Boon Lay Interchange, Jurong West St 64, Jurong West Ctrl 3, Jln Boon Lay, Boon Lay Ave, Corporation Rd, Jurong West Ave 2, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Upp Cross St, Chin Swee Rd, Outram Rd, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, Eu Tong Sen St, Outram Rd, Chin Swee Rd, Havelock Rd, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, Jurong West Ave 2, Corporation Rd, Boon Lay Ave, Jln Boon Lay, Boon Lay Way, Jurong West St 64 and Boon Lay Interchange. |
| 2005 | Boon Lay Interchange, Jurong West Ctrl 3, Jln Boon Lay, Boon Lay Ave, Corporation Rd, Jurong West Ave 2, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Upp Cross St, Chin Swee Rd, Outram Rd, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, Eu Tong Sen St, Outram Rd, Chin Swee Rd, Havelock Rd, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, Jurong West Ave 2, Corporation Rd, Boon Lay Ave, Jln Boon Lay, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 2003 | Boon Lay Interchange, Jurong West Ctrl 3, Jln Boon Lay, Boon Lay Ave, Corporation Rd, Jurong West Ave 2, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Upp Cross St, Chin Swee Rd, Outram Rd, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, Eu Tong Sen St, Outram Rd, Chin Swee Rd, Havelock Rd, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Orchard Lk, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, Jurong West Ave 2, Corporation Rd, Boon Lay Ave, Jln Boon Lay, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 2002 | Boon Lay Interchange, Jurong West Ctrl 3, Jln Boon Lay, Boon Lay Ave, Corporation Rd, Jurong West Ave 2, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Upp Bt Timah Rd, Bt Timah Lk, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Upp Cross St, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Orchard Lk, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, Jurong West Ave 2, Corporation Rd, Boon Lay Ave, Jln Boon Lay, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 1997 | Boon Lay Interchange, Jurong West Ctrl 3, Jln Boon Lay, Boon Lay Ave, Corporation Rd, Jurong West Ave 2, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Upp Bt Timah Rd, Bt Timah Lk, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Neil Rd, Kreta Ayer Rd, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Orchard Lk, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, Jurong West Ave 2, Corporation Rd, Boon Lay Ave, Jln Boon Lay, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 1993 | Boon Lay Interchange, Jurong West Ctrl 3, Jln Boon Lay, Boon Lay Ave, Corporation Rd, PIE, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Upp Bt Timah Rd, Bt Timah Lk, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Upp Cross St, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Orchard Lk, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, PIE, Corporation Rd, Boon Lay Ave, Jln Boon Lay, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 1992 | Boon Lay Interchange, Jurong West Ctrl 3, Jln Boon Lay, Boon Lay Ave, Corporation Rd, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Upp Bt Timah Rd, Bt Timah Lk, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Upp Cross St, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Orchard Lk, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, Corporation Rd, Boon Lay Ave, Jln Boon Lay, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 1991 | Boon Lay Interchange, Jurong West Ctrl 3, Jln Boon Lay, Boon Lay Ave, Corporation Rd, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Upp Bt Timah Rd, Bt Timah Lk, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Upp Cross St, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, Corporation Rd, Boon Lay Ave, Jln Boon Lay, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 1990 | NTI Terminal, Nanyang Dr, Nanyang Circle, Nanyang Ave, Jln Bahar, PIE, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Upp Bt Timah Rd, Bt Timah Lk, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Upp Cross St, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, PIE, Jln Bahar, Nanyang Ave, Nanyang Circle, Nanyang Cres, Nanyang Dr and NTI Terminal. |
| 1988 | NTI Terminal, Nanyang Dr, Nanyang Ave, Jln Bahar, PIE, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Upp Bt Timah Rd, Bt Timah Lk, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Upp Cross St, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, PIE, Jln Bahar, Nanyang Ave, Nanyang Cres, Nanyang Dr and NTI Terminal. |
| 1987 | NTI Terminal, Nanyang Dr, Nanyang Ave, Jln Bahar, PIE, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Upp Bt Timah Rd, Bt Timah Lk, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Neil Rd, Eu Tong Sen St and New Bridge Rd Terminal. | New Bridge Rd Terminal, Eu Tong Sen St, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, PIE, Jln Bahar, Nanyang Ave, Nanyang Cres, Nanyang Dr and NTI Terminal. |
| 1986 | NTI Terminal, Nanyang Dr, Nanyang Ave, Jln Bahar, PIE, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Upp Bt Timah Rd, Bt Timah Lk, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Neil Rd, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, New Bridge Rd, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, PIE, Jln Bahar, Nanyang Ave, Nanyang Dr, Nanyang Cres, Nanyang Circle and NTI Terminal. |
| 1985 | NTI Terminal, Nanyang Ave, Upp Jurong Rd, Jurong Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Jln Jurong Kechil, Upp Bt Timah Rd, Bt Timah Lk, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Dhoby Ghaut, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Neil Rd, New Bridge Rd and New Bridge Rd Terminal. | New Bridge Rd Terminal, New Bridge Rd, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Rd, Upp Jurong Rd, Nanyang Ave and NTI Terminal. |
| 1984 | Nanyang Ave, Upp Jurong Rd, Jurong Cres, Upp Jurong Rd, Jurong Rd, Bt Batok St 23, Bt Batok St 24, Bt Batok East Ave 3, Jurong Rd, Jln Jurong Kechil, Upp Bt Timah Rd, Bt Timah Lk, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Dhoby Ghaut, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Neil Rd and New Bridge Rd. | New Bridge Rd, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Jurong Rd, Bt Batok East Ave 3, Bt Batok St 24, Bt Batok St 23, Jurong Rd, Upp Jurong Rd, Jurong Cres, Upp Jurong Rd and Nanyang Ave. |
| 1979 | Nanyang Ave, Upp Jurong Rd, Jurong Rd, Jln Jurong Kechil, Upp Bt Timah Rd, Bt Timah Lk, Jln Anak Bt, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Dhoby Ghaut, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Neil Rd and New Bridge Rd. | New Bridge Rd, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Jurong Rd, Upp Jurong Rd and Nanyang Ave. |
| 1977 | Nanyang Ave, Upp Jurong Rd, Jurong Rd, Jln Jurong Kechil, Upp Bt Timah Rd, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Dhoby Ghaut, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Neil Rd and New Bridge Rd. | New Bridge Rd, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Jurong Rd, Upp Jurong Rd and Nanyang Ave. |
| 1975 | Nanyang Ave, Upp Jurong Rd, Jurong Rd, Jln Jurong Kechil, Upp Bt Timah Rd, Dunearn Rd, Farrer Rd, Holland Rd, Napier Rd, Tanglin Rd, Orchard Rd, Dhoby Ghaut, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Neil Rd and New Bridge Rd. | New Bridge Rd, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Paterson Rd, Orchard Rd, Tanglin Rd, Napier Rd, Holland Rd, Farrer Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Jurong Rd, Upp Jurong Rd and Nanyang Ave. |
| 1974 | Nanyang Ave, Upp Jurong Rd, Jurong Rd, Old Jurong Rd, Jln Jurong Kechil, Upp Bt Timah Rd, Dunearn Rd, Stevens Rd, Scotts Rd, Orchard Rd, Dhoby Ghaut, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Neil Rd and New Bridge Rd. | New Bridge Rd, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Paterson Rd, Scotts Rd, Stevens Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Old Jurong Rd, Jurong Rd, Upp Jurong Rd and Nanyang Ave. |
| 1971 | Nanyang Ave, Upp Jurong Rd, Jurong Rd, Old Jurong Rd, Jln Jurong Kechil, Upp Bt Timah Rd, Dunearn Rd, Stevens Rd, Scotts Rd, Orchard Rd, Dhoby Ghaut, Bras Basah Rd, Nth Bridge Rd, Sth Bridge Rd, Neil Rd and New Bridge Rd. | New Bridge Rd, Hill St, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Rd, Scotts Rd, Stevens Rd, Bt Timah Rd, Upp Bt Timah Rd, Jln Jurong Kechil, Old Jurong Rd, Jurong Rd, Upp Jurong Rd and Nanyang Ave. |
SBS Transit Bus Service 175 (since 11 Mar 2007)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2007 | Clementi Interchange, Clementi Ave 3, Commonwealth Ave West, Clementi Ave 2, West Coast Rd, West Coast Lk, West Coast Highway, Pasir Panjang Rd, Alexandra Rd, Depot Rd, Henderson Rd, Jln Bt Merah, CTE, Tiong Bahru Rd, Zion Rd, Hoot Kiam Rd, Paterson Hill, Paterson Rd, Orchard Rd, Bras Basah Rd, Victoria St, Kallang Rd, Lavender St, Kallang Bahru, Geylang Bahru, Upp Boon Keng Rd, Lor 1 Geylang, Geylang Rd and Lor 1 Geylang Terminal. | Lor 1 Geylang Terminal, Lor 1 Geylang, Upp Boon Keng Rd, Geylang Bahru, Kallang Bahru, Lavender St, Crawford St, Nth Bridge Rd, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Paterson Rd, Paterson Hill, Irwell Bank Rd, Kim Seng Rd, Outram Rd, CTE, Jln Bt Merah, Henderson Rd, Depot Rd, Alexandra Rd, Pasir Panjang Rd, West Coast Highway, West Coast Lk, West Coast Rd, Clementi Ave 2, Commonwealth Ave West, Clementi Ave 3 and Clementi Interchange. |
SMRT Bus Service 176 (since 24 Jan 1988)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2017 | Bt Merah Interchange, Bt Merah Ctrl, Henderson Rd, Telok Blangah Rd, Pasir Panjang Rd, West Coast Highway, West Coast Rd, Jurong Town Hall Rd, Jurong East Ctrl, Bt Batok Ave 1, Bt Batok West Ave 6, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 2, Hillview Ave, Hillview Rd, Upp Bt Timah Rd, Bt Panjang Rd, Jelebu Rd, Petir Rd and Bt Panjang Interchange. | Bt Panjang Interchange, Jelebu Rd, Bt Panjang Rd, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Bt Batok East Ave 2, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok West Ave 6, Bt Batok Ave 1, Jurong East Ctrl, Jurong Town Hall Rd, West Coast Rd, West Coast Highway, Pasir Panjang Rd, Telok Blangah Rd, Henderson Rd, Bt Merah Ctrl and Bt Merah Interchange. |
| 2012 | Bt Merah Interchange, Bt Merah Ctrl, Henderson Rd, Telok Blangah Rd, Pasir Panjang Rd, West Coast Highway, West Coast Rd, Jurong Town Hall Rd, Jurong East Ctrl, Bt Batok Ave 1, Bt Batok West Ave 6, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 2, Hillview Ave, Hillview Rd, Upp Bt Timah Rd, Bt Panjang Rd and Jelebu Rd. | Jelebu Rd, Bt Panjang Rd, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Bt Batok East Ave 2, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok West Ave 6, Bt Batok Ave 1, Jurong East Ctrl, Jurong Town Hall Rd, West Coast Rd, West Coast Highway, Pasir Panjang Rd, Telok Blangah Rd, Henderson Rd, Bt Merah Ctrl and Bt Merah Interchange. |
| 1999 | Bt Merah Interchange, Bt Merah Ctrl, Henderson Rd, Telok Blangah Rd, Pasir Panjang Rd, West Coast Highway, West Coast Rd, Jurong Town Hall Rd, Jurong East Ctrl, Bt Batok Ave 1, Bt Batok West Ave 6, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 2, Hillview Ave, Hillview Rd, Upp Bt Timah Rd, Bt Panjang Rd, Jelebu Rd, Petir Rd and Bt Panjang Interchange. | Bt Panjang Interchange, Jelebu Rd, Bt Panjang Rd, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Bt Batok East Ave 2, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok West Ave 6, Bt Batok Ave 1, Jurong East Ctrl, Jurong Town Hall Rd, West Coast Rd, West Coast Highway, Pasir Panjang Rd, Telok Blangah Rd, Henderson Rd, Bt Merah Ctrl and Bt Merah Interchange. |
| 1995 | Bt Merah Interchange, Bt Merah Ctrl, Henderson Rd, Telok Blangah Rd, Pasir Panjang Rd, West Coast Highway, West Coast Rd, Jurong Town Hall Rd, Jurong East Ctrl, Bt Batok Ave 1, Bt Batok West Ave 6, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 2, Hillview Ave, Hillview Rd, Upp Bt Timah Rd, Bt Panjang Rd, Gangsa Rd, Petir Rd and Bt Panjang Terminal. | Bt Panjang Terminal, Petir Rd, Pending Rd, Bt Panjang Rd, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Bt Batok East Ave 2, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok West Ave 6, Bt Batok Ave 1, Jurong East Ctrl, Jurong Town Hall Rd, West Coast Rd, West Coast Highway, Pasir Panjang Rd, Telok Blangah Rd, Henderson Rd, Bt Merah Ctrl and Bt Merah Interchange. |
| 1990 | Bt Merah Interchange, Bt Merah Ctrl, Henderson Rd, Telok Blangah Rd, Pasir Panjang Rd, West Coast Highway, West Coast Rd, Jurong Town Hall Rd, Jurong East Ctrl, Bt Batok Ave 1, Bt Batok West Ave 6, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 4, Bt Batok East Ave 2, Hillview Ave, Hillview Rd, Upp Bt Timah Rd, Bt Panjang Rd, Gangsa Rd, Petir Rd and Bt Panjang Terminal. | Bt Panjang Terminal, Petir Rd, Pending Rd, Bt Panjang Rd, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Bt Batok East Ave 2, Bt Batok East Ave 4, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok West Ave 6, Bt Batok Ave 1, Jurong East Ctrl, Jurong Town Hall Rd, West Coast Rd, West Coast Highway, Pasir Panjang Rd, Telok Blangah Rd, Henderson Rd, Bt Merah Ctrl and Bt Merah Interchange. |
| 1989 | Jurong East Interchange, Jurong East St 12, Boon Lay Way, Jurong East Ctrl, Bt Batok Ave 1, Bt Batok West Ave 6, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 4, Hillview Ave, Hillview Rd, Upp Bt Timah Rd, Bt Panjang Rd, Gangsa Rd, Petir Rd and Pending Rd (Loop) | Bt Panjang Rd, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Bt Batok East Ave 4, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok West Ave 6, Bt Batok Ave 1, Jurong East Ctrl, Jurong East St 13 and Jurong East Interchange. |
| 1988 | Jurong East Interchange, Jurong East St 12, Boon Lay Way, Jurong East Ctrl, Bt Batok Ave 1, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 4, Hillview Ave, Hillview Rd, Upp Bt Timah Rd, Cashew Rd, Petir Rd, Pending Rd and Bt Panjang Rd (Loop) | Gangsa Rd, Petir Rd, Cashew Rd, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Bt Batok East Ave 4, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok Ave 1, Jurong East Ctrl, Jurong East St 13 and Jurong East Interchange. |
Tower Transit Bus Service 177 (since 26 Apr 1989)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2024 | Bt Batok Interchange, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 4, Bt Batok East Ave 2, Hillview Ave, Hillview Rise, Hillview Rd, Upp Bt Timah Rd, Gombak Dr, MINDEF CP, Gombak Dr, Upp Bt Timah Rd, Bt Panjang Rd and Jelebu Rd (Loop) | Petir Rd, Upp Bt Timah Rd, Gombak Dr, MINDEF CP, Gombak Dr, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Hillview Rise, Hillview Ave, Bt Batok East Ave 2, Bt Batok East Ave 4, Bt Batok East Ave 3, Bt Batok Ctrl and Bt Batok Interchange. |
| 2020 | Bt Batok Interchange, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 4, Bt Batok East Ave 2, Hillview Ave, Hillview Rd, Upp Bt Timah Rd, Gombak Dr, MINDEF CP, Gombak Dr, Upp Bt Timah Rd, Bt Panjang Rd and Jelebu Rd (Loop) | Petir Rd, Upp Bt Timah Rd, Gombak Dr, MINDEF CP, Gombak Dr, Upp Bt Timah Rd, Hillview Rd, Hillview Ave, Bt Batok East Ave 2, Bt Batok East Ave 4, Bt Batok East Ave 3, Bt Batok Ctrl and Bt Batok Interchange. |
| 2012 | Bt Batok Interchange, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 4, Bt Batok East Ave 2, Hillview Ave, Hillview Lk, Gombak Dr, MINDEF CP, Gombak Dr, Upp Bt Timah Rd, Bt Panjang Rd and Jelebu Rd (Loop) | Petir Rd, Upp Bt Timah Rd, Gombak Dr, MINDEF CP, Gombak Dr, Hillview Lk, Hillview Ave, Bt Batok East Ave 2, Bt Batok East Ave 4, Bt Batok East Ave 3, Bt Batok Ctrl and Bt Batok Interchange. |
| 1999 | Bt Batok Interchange, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 4, Bt Batok East Ave 2, Hillview Ave, Hillview Lk, Gombak Dr, MINDEF CP, Gombak Dr, Upp Bt Timah Rd, Bt Panjang Rd, Jelebu Rd, Petir Rd and Bt Panjang Interchange. | Bt Panjang Interchange, Jelebu Rd, Bt Panjang Rd, Upp Bt Timah Rd, Gombak Dr, MINDEF CP, Gombak Dr, Hillview Lk, Hillview Ave, Bt Batok East Ave 2, Bt Batok East Ave 4, Bt Batok East Ave 3, Bt Batok Ctrl and Bt Batok Interchange. |
| 1990 | Bt Batok Interchange, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 4, Bt Batok East Ave 2, Hillview Ave, Hillview Lk, Gombak Dr, MINDEF CP, Gombak Dr, Upp Bt Timah Rd, Bt Panjang Rd, Gangsa Rd, Petir Rd and Pending Rd (Loop) | Bt Panjang Rd, Upp Bt Timah Rd, Gombak Dr, MINDEF CP, Gombak Dr, Hillview Lk, Hillview Ave, Bt Batok East Ave 2, Bt Batok East Ave 4, Bt Batok East Ave 3, Bt Batok Ctrl and Bt Batok Interchange. |
| 1989 | MINDEF CP, Gombak Dr, Upp Bt Timah Rd, Hillview Rd and Hillview Circus (Loop) | Hillview Rd, Upp Bt Timah Rd, Gombak Dr and MINDEF CP. |
SMRT Bus Service 178 (since 3 Feb 1974)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2021 | Boon Lay Interchange, Jurong West Ctrl 3, Jurong West St 64, Boon Lay Way, Corporation Rd, Jln Ahmad Ibrahim, Jurong Town Hall Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Old Jurong Rd, Upp Bt Timah Rd, Woodlands Rd, Woodlands Ave 3, Woodlands Ctr Rd, Admiralty Rd, Marsiling Dr, Marsiling Rd, Marsiling Rise, Woodlands Ave 5 and Woodlands Interchange. | Woodlands Interchange, Woodlands Ave 5, Marsiling Rise, Marsiling Rd, Marsiling Dr, Admiralty Rd, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Old Jurong Rd, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Town Hall Rd, Jln Ahmad Ibrahim, Corporation Rd, Boon Lay Way, Jurong West St 64, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 2018 | Boon Lay Interchange, Jurong West Ctrl 3, Jurong West St 64, Boon Lay Way, Corporation Rd, Jln Ahmad Ibrahim, Jurong Town Hall Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Old Jurong Rd, Upp Bt Timah Rd, Woodlands Rd, Woodlands Ave 3, Woodlands Ctr Rd, Admiralty Rd, Marsiling Dr, Marsiling Rd, Marsiling Rise, Woodlands Ave 5, Woodlands Ave 3, Woodlands Sq and Woodlands Temp Interchange. | Woodlands Temp Interchange, Woodlands Sq, Woodlands Ave 3, Woodlands Ave 5, Marsiling Rise, Marsiling Rd, Marsiling Dr, Admiralty Rd, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Old Jurong Rd, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Town Hall Rd, Jln Ahmad Ibrahim, Corporation Rd, Boon Lay Way, Jurong West St 64, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 2016 | Boon Lay Interchange, Jurong West Ctrl 3, Jurong West St 64, Boon Lay Way, Corporation Rd, Jln Ahmad Ibrahim, Jurong Town Hall Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Old Jurong Rd, Upp Bt Timah Rd, Woodlands Rd, Woodlands Ctr Rd, Admiralty Rd, Marsiling Dr, Marsiling Rd, Marsiling Rise, Woodlands Ave 5, Woodlands Ave 3, Woodlands Sq and Woodlands Temp Interchange. | Woodlands Temp Interchange, Woodlands Sq, Woodlands Ave 3, Woodlands Ave 5, Marsiling Rise, Marsiling Rd, Marsiling Dr, Admiralty Rd, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Old Jurong Rd, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Town Hall Rd, Jln Ahmad Ibrahim, Corporation Rd, Boon Lay Way, Jurong West St 64, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 2009 | Boon Lay Interchange, Jurong West Ctrl 3, Jurong West St 64, Boon Lay Way, Corporation Rd, Jln Ahmad Ibrahim, Jurong Town Hall Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Old Jurong Rd, Upp Bt Timah Rd, Woodlands Rd, Woodlands Ctr Rd, Admiralty Rd, Marsiling Dr, Marsiling Rd, Marsiling Rise, Woodlands Ave 5 and Woodlands Reg Interchange. | Woodlands Reg Interchange, Woodlands Ave 5, Marsiling Rise, Marsiling Rd, Marsiling Dr, Admiralty Rd, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Old Jurong Rd, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Town Hall Rd, Jln Ahmad Ibrahim, Corporation Rd, Boon Lay Way, Jurong West St 64, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 2006 | Boon Lay Interchange, Jurong West St 64, Boon Lay Way, Corporation Rd, Jln Ahmad Ibrahim, Jurong Town Hall Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Old Jurong Rd, Upp Bt Timah Rd, Woodlands Rd, Woodlands Ctr Rd, Admiralty Rd, Marsiling Dr, Marsiling Rd, Marsiling Rise, Woodlands Ave 5 and Woodlands Reg Interchange. | Woodlands Reg Interchange, Woodlands Ave 5, Marsiling Rise, Marsiling Rd, Marsiling Dr, Admiralty Rd, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Old Jurong Rd, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Town Hall Rd, Jln Ahmad Ibrahim, Corporation Rd, Boon Lay Way, Jln Boon Lay, Jurong West Ctrl 3, Jurong West St 64 and Boon Lay Interchange. |
| 1996 | Boon Lay Interchange, Jurong West Ctrl 3, Jurong West Ctrl 2, Boon Lay Way, Corporation Rd, Jln Ahmad Ibrahim, Jurong Town Hall Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Old Jurong Rd, Upp Bt Timah Rd, Woodlands Rd, Woodlands Ctr Rd, Admiralty Rd, Marsiling Dr, Marsiling Rd, Marsiling Rise, Woodlands Ave 5 and Woodlands Reg Interchange. | Woodlands Reg Interchange, Woodlands Ave 5, Marsiling Rise, Marsiling Rd, Marsiling Dr, Admiralty Rd, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Old Jurong Rd, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Town Hall Rd, Jln Ahmad Ibrahim, Corporation Rd, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 1990 | Boon Lay Interchange, Jurong West Ctrl 3, Jurong West Ctrl 2, Boon Lay Way, Corporation Rd, Jln Ahmad Ibrahim, Jurong Town Hall Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Old Jurong Rd, Upp Bt Timah Rd, Woodlands Rd and Woodlands Interchange. | Woodlands Interchange, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Old Jurong Rd, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Town Hall Rd, Jln Ahmad Ibrahim, Corporation Rd, Boon Lay Way, Jurong West Ctrl 2, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 1985 | Jurong Interchange, Jurong Port Rd, Jln Ahmad Ibrahim, Jurong Town Hall Rd, Bt Batok Rd, Bt Batok West Ave 3, Bt Batok Ctrl, Bt Batok East Ave 3, Bt Batok East Ave 6, Old Jurong Rd, Upp Bt Timah Rd, Woodlands Rd and Woodlands Interchange. | Woodlands Interchange, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Old Jurong Rd, Bt Batok East Ave 6, Bt Batok East Ave 3, Bt Batok Ctrl, Bt Batok West Ave 3, Bt Batok Rd, Jurong Town Hall Rd, Jln Ahmad Ibrahim, Jurong Port Rd and Jurong Interchange. |
| 1984 | Jurong Interchange, Jurong Port Rd, Jln Ahmad Ibrahim, Jurong Town Hall Rd, Jurong Rd, Bt Batok St 23, Bt Batok St 24, Bt Batok East Ave 3, Jurong Rd, Upp Bt Timah Rd, Woodlands Rd and Woodlands Interchange. | Woodlands Interchange, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Jurong Rd, Bt Batok East Ave 3, Bt Batok St 24, Bt Batok St 23, Jurong Rd, Jurong Town Hall Rd, Jln Ahmad Ibrahim, Jurong Port Rd and Jurong Interchange. |
| 1981 | Jurong Interchange, Jurong Port Rd, Jln Ahmad Ibrahim, Jurong Town Hall Rd, Jurong Rd, Upp Bt Timah Rd, Woodlands Rd and Woodlands Interchange. | Woodlands Interchange, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Jurong Rd, Jurong Town Hall Rd, Jln Ahmad Ibrahim, Jurong Port Rd and Jurong Interchange. |
| 1980 | Jurong Interchange, Jurong Port Rd, Jln Ahmad Ibrahim, Jurong Town Hall Rd, Jurong Rd, Upp Bt Timah Rd, Woodlands Rd, Woodlands Ctr Rd and Admiralty Rd. | Admiralty Rd, Woodlands Ctr Rd, Woodlands Rd, Upp Bt Timah Rd, Jurong Rd, Jurong Town Hall Rd, Jln Ahmad Ibrahim, Jurong Port Rd and Jurong Interchange. |
| 1978 | Jurong Interchange, Jurong Port Rd, Jln Ahmad Ibrahim, Jurong Town Hall Rd, Jurong Rd and Upp Bt Timah Rd. | Upp Bt Timah Rd, Jurong Rd, Jurong Town Hall Rd, Jln Ahmad Ibrahim, Jurong Port Rd and Jurong Interchange. |
| 1977 | Boon Lay Pl, Boon Lay Dr, Corporation Rd, Corporation Dr, Corporation Rd, Jln Ahmad Ibrahim, Jurong Town Hall Rd, Jurong Rd, Jln Jurong Kechil and Upp Bt Timah Rd. | Upp Bt Timah Rd, Jln Jurong Kechil, Jurong Rd, Jurong Town Hall Rd, Jln Ahmad Ibrahim, Corporation Rd, Corporation Dr, Corporation Rd, Boon Lay Dr and Boon Lay Pl. |
| 1974 | Corporation Dr, Corporation Rd, Jln Ahmad Ibrahim, Jln Bahru Selatan, Jln Bahru Utara, Jurong Rd, Old Jurong Rd, Jln Jurong Kechil and Upp Bt Timah Rd. | Upp Bt Timah Rd, Jln Jurong Kechil, Old Jurong Rd, Jurong Rd, Jln Bahru Utara, Jln Bahru Selatan, Jln Ahmad Ibrahim, Corporation Rd and Corporation Dr. |
SMRT Bus Service 178A (since 15 Jul 2013)
| Year | Route (AM Peak: One-Directional) |
| 2021 | Woodlands Interchange, Woodlands Ave 5, Marsiling Rise, Marsiling Rd, Marsiling Dr, Admiralty Rd, Woodlands Ctr Rd and Woodlands Rd (terminating at Kranji Stn). |
| 2016 | Woodlands Temp Interchange, Woodlands Sq, Woodlands Ave 3, Woodlands Ave 5, Marsiling Rise, Marsiling Rd, Marsiling Dr, Admiralty Rd, Woodlands Ctr Rd and Woodlands Rd (terminating at Kranji Stn). |
| 2013 | Woodlands Reg Interchange, Woodlands Ave 5, Marsiling Rise, Marsiling Rd, Marsiling Dr, Admiralty Rd, Woodlands Ctr Rd and Woodlands Rd (terminating at Kranji Stn). |
SMRT Bus Service 179 (since 7 Jan 2001)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2010 | Boon Lay Interchange, Jurong West Ctrl 3, Jurong West St 64, Jurong West St 63, Pioneer Rd Nth, Nanyang Cres, Lien Ying Chow Dr and Nanyang Dr (Loop) | Nanyang Cres, Pioneer Rd Nth, Jurong West St 63, Jurong West St 64, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 2006 | Boon Lay Interchange, Jurong West St 64, Jurong West St 63, Pioneer Rd Nth, Nanyang Cres, Lien Ying Chow Dr and Nanyang Dr (Loop) | Nanyang Cres, Pioneer Rd Nth, Jurong West St 63, Jurong West St 64 and Boon Lay Interchange. |
| 2001 | Boon Lay Interchange, Jurong West Ctrl 3, Jurong West St 64, Jurong West St 63, Pioneer Rd Nth, Nanyang Cres and Nanyang Dr (Loop) | Nanyang Cres, Pioneer Rd Nth, Jurong West St 63, Jurong West St 64, Jurong West Ctrl 3 and Boon Lay Interchange. |
SMRT Bus Service 179A (since 1 Oct 2007)
| Year | Route (One-Directional) | |
| AM Peak | PM Peak | |
| 2010 | Boon Lay Interchange, Jurong West Ctrl 3, Jurong West St 64, Jurong West St 63, Pioneer Rd Nth, Nanyang Cres, Lien Ying Chow Dr and Nanyang Dr (terminating at Hall 4). | Nanyang Dr, Nanyang Cres, Pioneer Rd Nth, Jurong West St 63, Jurong West St 64, Jurong West Ctrl 3 and Boon Lay Interchange. |
| 2007 | Boon Lay Interchange, Jurong West St 64, Jurong West St 63, Pioneer Rd Nth, Nanyang Cres, Lien Ying Chow Dr and Nanyang Dr (terminating at Hall 4). | Nanyang Dr, Nanyang Cres, Pioneer Rd Nth, Jurong West St 63, Jurong West St 64 and Boon Lay Interchange. |
External Links & References:
- SBS Bus Guides 1980 – 1990/1991
- TransitLink Guides 1992 – 2014
- Transitlink eGuide (until Aug 2024)
- SimplyGo eGuide (from Sep 2024)
- SGWiki – History of Bus Services