plucking out some past routes of Toa Payoh and Bishan:
1979
135: Toa Payoh - Upp Changi Rd 13.3km via MacPherson Estate
137: Toa Payoh - Mandai Lake Rd via Upp Thomson Rd
139: Toa Payoh - Jln Bt Merah via Clemenceau Ave
140: Toa Payoh - Prince Edward Rd via Orchard Rd
141: Toa Payoh - Prince Edward Rd via Balestier Rd and Jln Besar
143: Toa Payoh - Jurong Rd 16.2km Market via Orchard Rd, Clemenceau Ave and Chinatown
144: Toa Payoh - Commonwealth Ave via Orchard Rd
145: Toa Payoh - Pasir Panjang Rd (Clementi Rd) via Balestier Rd and Chinatown
146: Toa Payoh - Pasir Panjang Rd (Clementi Rd) via Bendemeer Rd and Shenton Way
147: Toa Payoh - Commonwealth Ave via Lavender St and Chinatown
148: Toa Payoh - Commonwealth Ave via Boon Keng Rd and Chinatown
149: Toa Payoh - Prince Edward Rd via Thomson Rd and Bencoolen St
150: Toa Payoh - Crawford St via Bencoolen St and Victoria St
151: Toa Payoh - New Bridge Rd via Whitley Rd, Stevens Rd and Kim Seng Rd
152: Toa Payoh - Bedok via Paya Lebar Rd
153: Toa Payoh - Jln Bt Merah via Farrer Rd
155: Toa Payoh - Upp Changi Rd 13.3km via MacPherson Estate
156: Toa Payoh - Upp Serangoon Rd (End) via Serangoon Gardens Way
157: Toa Payoh - Jurong via Bt Timah Rd and Jurong Rd.
158: Toa Payoh - Kg Chai Chee via MacPherson Estate
159: Toa Payoh - Ang Mo Kio via Lor Chuan
SERVICE 57 (Bishan - Sin Ming Ave):
Bishan Interchange, Bishan St 13, St 11, St 21, (Marymount Lane), Upp Thomson Rd, Sin Ming Ave, Sin Ming Dr, (Sin Ming Dr), Sin Ming Rd, (Sector C), Sin Ming Dr, Sin Ming Ave, Upp Thomson Rd, (Marymount Lane), Bishan St 21, St 11, St 13 and Bishan Interchange.
NOTE: Withdrawn in 1992.
SERVICE 59 (Bishan - Jln Kayu):
Bishan Interchange, (Bishan St 13), Bishan St 11, St 21, Marymount Rd, Ang Mo Kio Ave 6, Yio Chu Kang Rd, Jln Kayu and Jln Kayu Terminal.
And return via Jln Kayu Terminal, Jln Kayu, Yio Chu Kang Rd, Ang Mo Kio Ave 6, Marymount Rd, Bishan St 21, St 11, (Bishan St 13) and Bishan Interchange.
NOTE: Now part of SBST 86 (except Ang Mo Kio - Bishan stretch). Cut short to ply between Ang Mo Kio and Jln Kayu in 1992. Taken over by TIBS on 17th Dec 1995. Extended to Sengkang and renumbered as 866 on 21 Feb 1999, which SBST took over on 25th July 1999.
SERVICE 230 (Toa Payoh - Toa Payoh Lor 8 ):
[1979] Toa Payoh Interchange, Toa Payoh Lor 6, Toa Payoh East, (Toa Payoh Lor 7), Lor 8, Access Rd, (Toa Payoh Lor 6), Lor 1, Lor 2 and Toa Payoh Interchange.
NOTE: First feeder service in Toa Payoh. Withdrawn in the 80's.
SERVICE 237 (Toa Payoh - Toa Payoh Lor 7):
Toa Payoh Interchange, Toa Payoh Lor 6, Toa Payoh East, Toa Payoh Lor 7, Lor 6 and Toa Payoh Interchange..
NOTE: Now part of SBST 232 since 2002.