Tower Transit Bus Service 189

Tower Transit Bus Service 189 is a trunk route running from Bukit Batok Bus Interchange and looping at Clementi Avenue 1, passing through Bukit Batok Avenue 1, Street 23, AYE, Clementi Avenue 6 and Clementi MRT.

Bt Batok Int ↺ Clementi Ave 1 (Loop)
43009 Bt Batok Int NS2 Bt Batok Ctrl
43701 Blk 225 Bt Batok Ctrl
43389 Opp Blk 102 Bt Batok Ave 1
43519 Opp Bt Batok Swim Cplx Bt Batok East Ave 6
43599 Bt View Sec Sch Bt Batok East Ave 6
43509 Blk 291E Bt Batok St 23
43219 Opp Sbst Bt Batok Depot Bt Batok St 23
43319 Opp Midview Bldg Bt Batok St 23
42319 Burgundy Hill Bt Batok East Ave 3
12209 Opp Logishub @ Clementi Clementi Ave 6
17379 Blk 304 Clementi Ave 6
17189 Blk 317 C'wealth Ave West
17179 Clementi Stn Exit B EW23 C'wealth Ave West
17259 Opp Blk 460 Clementi Ave 2
17191 NUS High Sch Clementi Rd
16991 Opp Nan Hua High Sch Clementi Ave 1
16891 Opp Blk 420A Clementi Ave 1
17161 Blk 455 C'wealth Ave West
17171 Clementi Stn Exit A EW23 C'wealth Ave West
17181 Opp Blk 317 C'wealth Ave West
17371 Blk 201 Clementi Ave 6
12201 Logishub @ Clementi Clementi Ave 6
42311 Opp Burgundy Hill Bt Batok East Ave 3
43311 Midview Bldg Bt Batok St 23
43211 Sbst Bt Batok Depot Bt Batok St 23
43501 Opp Blk 291E Bt Batok St 23
43591 Opp Bt View Sec Sch Bt Batok East Ave 6
43511 Bt Batok Swim Cplx Bt Batok East Ave 6
43381 Blk 102 Bt Batok Ave 1
43709 Blk 644 Bt Batok Ctrl
43009 Bt Batok Int NS2 Bt Batok Ctrl


Technical Information
Route WAB_logo_20px Bukit Batok Bus Interchange ↺ Clementi Avenue 1 (Loop)
Passes Through Bukit Batok Ave 1, Bukit Batok St 23, AYE, Clementi Ave 6, Clementi MRT
Route Length 16.4 km
Travelling Time 51 – 81 mins
Operator Information
BCM Route Package Bulim Bus Package
Current Operator Tower Transit Singapore Pte Ltd
(Tower Transit Singapore)
Current Depot Bulim Bus Depot
Current Fleet 12-metre Double Deck Buses:
– Alexander Dennis Enviro500
– Volvo B9TL
12-metre Single Deck Buses:
– Mercedes-Benz Citaro
Departure Times from Bukit Batok 0545hrs – 2315hrs (Daily, Full loop)
After 2315hrs – 0110hrs (Service 189A | Terminates at Bukit Batok St 23 (Opp Midview Bldg))
Frequency Loop Service
0630-0830: 05 – 08 mins
0831-1659: 06 – 11 mins
1700-1900: 06 – 12 mins
After 1900: 10 – 12 mins
Notes Service 189A operates from Bukit Batok Interchange to Bukit Batok Street 23 (Opp Midview Bldg).
Buses leaving Bukit Batok Interchange after 2315hrs will operate as 189A.

Service 189 is an inter-town route serving between Bukit Batok and looping at Clementi Ave 1, via Bukit Batok Neighbourhood 2, Bukit Batok Street 23, Clementi Avenue 6, Clementi MRT and Clementi Road.

The route is well patronized between the industrial areas around Bukit Batok Street 23 and Bukit Batok MRT, with Short Trip Service 189A performing supplementary trips during Weekdays AM Peak, and scheduled mid-route departures (“downroutes”) in the reverse direction during Weekdays PM Peak. The sector between Clementi MRT and Clementi Ave 1 receives moderate demand due to the area’s presently limited residential developments, but encounters high demand from students heading to the educational institutions along Clementi Avenue 1.

Formerly a Singapore Bus Service (SBS) route since the 1970s, the route was transferred to Trans-Island Bus Service (TIBS) in 2000 and has been operated by SMRT until its it was re-allocated to the Bus Contracting Model (Bulim Bus Package) in May 2016. High capacity articulated buses are deployed during weekday peak hours back then, and double-deck buses were deployed since 26 October 2015.

In 2014, SMRT Service 189 was involved in a small scale bus loading trial where buses were equipped with electronic displays beside the front door, which indicates when the next bus will arrive and the passenger loading onboard that bus. The trial was never expanded, and LTA subsequently released bus loading information for mobile apps in addition to expected time of arrival.

Fare: Charges basic distance fares. See Bus Fares.

MRT Stations Served
Special Departures
  • C’Wealth Ave West (Clementi Stn Exit B) Bukit Batok Int via Clementi Ave 1
    Weekdays: 0558hrs
  • Bukit Batok St 23 (Midview Bldg) Bukit Batok Int
    Weekdays PM Peak
Short Trip Service
  • Service 189A: Bukit Batok Int → Bukit Batok St 23 (Opp Midview Bldg)
    Weekdays: 0708hrs – 0858hrs | 3 – 8 mins frequency
    Daily: After 2315hrs – 0110hrs

After 2315hrs daily, buses will be renumbered as 189A and terminate at Bukit Batok Street 23, Opp Midview Building.
During Eves of Public Holidays, last bus timings of Service 189A will be extended to complement the extension of train operating hours.

One thought on “Tower Transit Bus Service 189

  • 24 June 2017 at 9:15 AM

    This morning (8.29 a.m.) when I alighted at Bus Stop 43701 from Bus No.187, immediately to see SBM 3002K driven by an Indian driver over take the 187 without slowing down as everyday many of the commuters have to transfer to No. 189 at that Bus stop to Bukit Crescent area for work. As such, we have to wait for another 10 mins. for Bus 189 (SBM 3005C) to arrive.

    As the bus is totally no packed, I am very disappointed that the driver is so impatient and just over take without slowing for other commuters to board. I hope this will not happen again.



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