SERVICE TIBS SS1 (Yio Chu Kang - Yishun (Loop)):
[1988] Yio Chu Kang Terminal, Ang Mo Kio Ave 6, Lentor Ave, Yishun Ave 2, Central, Ave 9, Ring Rd, Ave 3, Ave 2, Lentor Ave, Ang Mo Kio Ave 6, (Ave 8 ) and Yio Chu Kang Terminal.
NOTE: Introduced in 1986-87. Withdrawn in 1989 after inauguration of Yishun extension on 20th Dec 1988.
SERVICE SS2 (Clementi - Jurong East St 32 (Loop)):
[1988] Clementi Interchange, (Clementi Ave 3, Commonwealth Ave West, Boon Lay Way), Jurong East Central, Jurong East Ave 1, Jurong East St 32, Jurong East Ave 1, Jurong East Central, (Boon Lay Way, Commonwealth Ave West, Clementi Ave 3) and Clementi Interchange.
NOTE: Introduced in 1986-87. Withdrawn in 1989.
SERVICE SS3 (Clementi - Bt Batok West Ave 7 (Loop)):
[1988] Clementi Interchange, (Clementi Ave 3, Commonwealth Ave West, Toh Tuck Ave, Bt Batok East Ave 3), Bt Batok East Ave 2, East Ave 5, West Ave 5, West Ave 7, West Ave 4, West Ave 2, West Ave 5, East Ave 5, East Ave 2, (Bt Batok East Ave 3, Toh Tuck Ave, Commonwealth Ave West, Clementi Ave 3) and Clementi Interchange.
NOTE: Introduced in 1986-87. Withdrawn in 1990.
SERVICE SS7 (Woodlands - Choa Chu Kang):
Woodlands Interchange, Woodlands Centre Rd, Bt Timah Expressway, Bt Panjang Rd, Choa Chu Kang Rd, Tech Whye Ave, Choa Chu Kang Dr, (Ave 4, Loop) and Choa Chu Kang Interchange.
And return via Choa Chu Kang Interchange, (Choa Chu Kang Ave 4, Loop), Dr, Tech Whye Ave, Choa Chu Kang Rd, Bt Panjang Rd, Bt Timah Expressway, Woodlands Centre Rd and Woodlands Interchange.
NOTE: Withdrawn on 10 Mar 1996 when the Woodlands MRT Extension was inaugrated.