Bus-MRT Rationalisation
On 24th January 1988, the first bus service rationalisation was conducted in conjunction with the opening of the North-South and East-West Lines of the MRT network.
These service changes were planned by SBS & TIBS before TransitLink took over the rationalisation exercise to further integrate the public transport system on 16th December 1990.
Service changes
| Phase | Implementation date | Service | Service changes |
|---|---|---|---|
| 1 | 24 January 1988 | 22 | New service between Ang Mo Kio and Tampines. |
| 27 | New service between Tampines and Changi Airport PTB. | ||
| 73 | Shortened to Yio Chu Kang Ter. | ||
| 118 | New service between Hougang and Orchard Rd (loop). | ||
| 138 | Withdrawn. | ||
| 140 | Withdrawn. | ||
| 141 | Withdrawn. | ||
| 176 | New service between Jurong East and Bt Panjang. | ||
| 305 | Withdrawn. | ||
| 2 | 13 March 1988 | 95 | Withdrawn and replaced by new Service 105. |
| 99 | Re-routed between Clementi Int and Jurong West St 91 (loop). | ||
| 105 | New service between Serangoon and Clementi. | ||
| 107 | Converted to full day service and amended to serve Kallang Basin and Marina Ctr. | ||
| 3 | 10 July 1988 | 187 | New service between Bt Panjang and Jurong. |
| 188 | New service between Jurong and Jurong West St 91 (loop). | ||
| 190 | New service between Bt Panjang and New Bridge Rd. | ||
| 306 | Withdrawn. | ||
| 4 | 11 July 1988 | 202 | Amended to Buona Vista Ter. At the same time, amended to ply North Buona Vista Rd, Dover Rd and Dover Ave, skipping C'wealth Ave West. |
| 205 | Amended to ply Toh Tuck Est. | ||
| 212 | Merged with Service 202 and withdrawn. | ||
| 5 | 31 July 1988 | 75 | Extended to Choa Chu Kang Ter. |
| 177 | Withdrawn. | ||
| 185 | New service between Choa Chu Kang and Shenton Way. | ||
| 209 | Withdrawn. | ||
| 6 | 5 November 1988 | 76 | Withdrawn. |
| 7 | 18 December 1988 | 51 | Extended to Jurong East Int. |
| 55 | Merged with Service 195 and 203 and withdrawn. | ||
| 79 | Merged with Service 97 and withdrawn. | ||
| 97 | Amended to ply via AYE, skipping Pasir Panjang Rd and covers the deleted sectors of Service 79 route. | ||
| 132 | Amended to Hougang Int. | ||
| 183 | Withdrawn. | ||
| 192 | Merged with Service 51 and withdrawn. | ||
| 195 | Merged with Services 55 and 203 and re-routed to start from South Canal and loop at Commonwealth Dr. | ||
| 203 | Merged with Services 55 and 195 and withdrawn. | ||
| 856 | New service between Yishun and Woodlands. | ||
| 8 | 5 March 1989 | 76 | New service between Yio Chu Kang and Marine Parade. |
| 176 | Amended to ply Upp Bt Timah Rd and Bt Batok West Ave 6. | ||
| 211 | Withdrawn. | ||
| 9 | 28 May 1989 | 151 | Withdrawn. |
| 163 | Shortened to Marina Ctr Ter. | ||
| 315 | Merged with Service 318 and amended to Boundary Rd, Lor Chuan and Serangoon Gdn Way. | ||
| 318 | Withdrawn. | ||
| 10 | 11 June 1989 | 94 | Withdrawn. |
| 168 | Withdrawn. | ||
| CBD1 | Withdrawn. | ||
| 11 | 27 August 1989 | 26 | Extended to Toa Payoh Int. |
| 145 | Amended to Buona Vista Ter. | ||
| 146 | Merged with Service 166 and withdrawn. | ||
| 148 | Merged with Service 26 and withdrawn. | ||
| 157 | Amended to Jurong East Ave 1 and Jurong West Ave 1. | ||
| 166 | Merged with Service 146 and extended to Clementi Int. | ||
| 186 | Merged with Service 145 and withdrawn. | ||
| 12 | 1 October 1989 | 164 | Withdrawn. |
| 855 | New service between Yishun and World Trade Ctr. | ||
| 13 | 22 October 1989 | 199 | Amended to Yuan Ching Rd and Boon Lay Way, skipping Corporation Dr. |
| 406 | Withdrawn. | ||
| 14 | 5 November 1989 | 1 | Withdrawn. |
| 8 | Withdrawn. | ||
| 13 | Amended to Yio Chu Kang Ter. | ||
| 20 | Withdrawn. | ||
| 62 | Extended to Hougang Int. | ||
| 90 | Withdrawn. | ||
| 91 | Withdrawn. | ||
| 94 | New service between Eunos and Paya Lebar Airport (loop). | ||
| 100 | Extended to Ghim Moh Ter. | ||
| 111 | Extended to Ghim Moh Ter. | ||
| 133 | Amended to Ang Mo Kio Ave 1, Lor Chuan, Serangoon Ave 2 and Upp Serangoon Rd. | ||
| 133A | Withdrawn. | ||
| 175 | Re-routed to start from Bukit Batok Int and loop at Tuas Rd. | ||
| 301 | Withdrawn. | ||
| M2 | New service between Jln Kembangan and Opera Est (loop). | ||
| 15 | 6 November 1989 | 192 | New service between Tuas and Lakeside MRT (loop). |
| M3 | New service between Bedok Gdns and Lucky Gdns (Loop). | ||
| M4 | New service between Eunos and Marine Parade Rd (Loop). | ||
| 16 | 10 March 1990 | 173 | Re-routed to start from Bt Batok Int and loop at Jln Anak Bukit via Bt Batok Ctrl and Bt Batok St 21, skipping Bt Batok East Ave 3. |
| 177 | Extended to start from Bt Batok Int and extended to loop at Bt Panjang Ter. | ||
| 205 | Amended to ply Toh Tuck Ave, skipping Old Toh Tuck Rd. | ||
| 17 | 15 April 1990 | 126 | Withdrawn. |
| 213 | Withdrawn. | ||
| 216 | Withdrawn. | ||
| 18 | 18 May 1990 | 403 | Amended to Pasir Ris Int. |
| 19 | 2 September 1990 | 13 | Amended to ply Bishan St 22. |
| 56 | Extended to Marina Ctr Ter, with the merger of Services 58 and 150. | ||
| 58 | Merged with Service 56 and 150 and withdrawn. | ||
| 83 | Amended to Serangoon Ctrl, Yio Chu Kang Link, Yio Chu Kang Rd, Hougang Ave 2 and Ave 8. | ||
| 101 | Merged with Service 83 and withdrawn. | ||
| 150 | Merged with Service 56 and 58 and withdrawn. | ||
| 207 | Withdrawn. |