SMRT Express Bus Service 188e

SMRT Express Bus Service 188e is a Morning Peak uni-directional limited-stop express route of Service 188, operating from Choa Chu Kang Interchange to HarbourFront Interchange, passing through Choa Chu Kang Way, Bukit Batok, Toh Guan, AYE, Clementi Road and Pasir Panjang.

Choa Chu Kang Int
→ HarbourFront Int
44009 Choa Chu Kang Int B4 NS4BP1 Choa Chu Kang Loop
44461 Blk 352 Choa Chu Kang Way
44451 Bef South View Stn BP2 Choa Chu Kang Way
44441 Blk 239 BP3 Choa Chu Kang Way
44121 Blk 113 Choa Chu Kang Way
43641 Opp HomeTeamNS Bt Batok West Ave 7
43831 Blk 334 Bt Batok West Ave 7
43491 Blk 331 Bt Batok West Ave 4
43481 Blk 315 Bt Batok West Ave 2
43471 Blk 306 Bt Batok West Ave 2
43461 Aft Bt Batok West Ave 5 Bt Batok West Ave 2
43401 Bt Batok Polyclinic Bt Batok West Ave 3
43321 Opp Blk 144 Bt Batok West Ave 6
43371 Blk 109 Bt Batok West Ave 6
43699 Blk 298 Bt Batok Ave 1
28629 Blk 266 Jurong East Ctrl
28631 Opp Blk 288D Toh Guan Rd
28641 Blk 284 Toh Guan Rd
28651 Opp IMM Bldg Toh Guan Rd
20019 Blk 431 AYE
16159 Coll of Design & Engrg Clementi Rd
16149 SDE3 Clementi Rd
16139 Bef Kent Ridge Ter Clementi Rd
15199 Opp Currency Hse CC26 Pasir Panjang Rd
15169 Harbourside Bldg 2 Pasir Panjang Rd
15159 Mapletree Business City Pasir Panjang Rd
15149 Opp Labrador Pk Stn CC27 Pasir Panjang Rd
14009 HarbourFront Int NE1CC29 Seah Im Rd
Route Overview
Route WAB_logo_20px Choa Chu Kang Bus Interchange → HarbourFront Bus Interchange
Passes Through Choa Chu Kang Way, Bt Batok West Ave 2, Toh Guan Rd, Clementi Rd, Pasir Panjang Rd
Route Length 22.0 km
Travelling Time 70 mins
Operator Information
BCM Route Package Choa Chu Kang–Bukit Panjang Bus Package
Current Operator SMRT Buses Ltd
Current Depot Kranji Bus Depot (KJDEP)
Buses park at: Woodlands Bus Park
Current Fleet Single Deck Bus:
– MAN A22
Operating Hours
Departure Times from Choa Chu Kang
Weekdays, except Public Holidays
07:08 – 07:23
Operating Frequency
From Choa Chu Kang
15 mins
Fare Information
Fare Charges express distance fares


Express 188e links the residential estates of Choa Chu Kang, Bukit Batok, Jurong East with the National University of Singapore (NUS), and various industries and offices at Pasir Panjang and HarbourFront. Operating during the morning peak hours, this service charges express fares.

This limited-stop service only calls at selected bus stops along the route of its parent Service 188 and will travel alternative routes along two sections – after Toh Guan Road, the bus will travel along the AYE instead of Boon Lay Way, and after Clementi Road, it will ply along West Coast Highway instead of Pasir Panjang Road. Two trips are operated on weekday mornings. In addition, it skips stops along Bukit Batok Road, Bukit Batok West Ave 5, Pasir Panjang Road and Telok Blangah Road.

Service 188e is one of three peak-hour express services introduced by SMRT between 2006 and 2007, which duplicate their parent service and improve travel times by only calling at bus stops with higher commuter traffic. The other two express services are 854e and 963e.

MRT / LRT Stations Served
Departure Timings

Weekdays, except Public Holidays

  • From Choa Chu Kang Int: 07:08 & 07:23
Route Variant



Operator History
  • 2007 – Present: SMRT Buses Ltd

The Bus Service Operating License (BSOL) for this route will be renewed in 2026 under the Choa Chu Kang–Bukit Panjang Bus Package.


Past Routings

Back to Express Bus Services
Back to Bus Articles

One thought on “SMRT Express Bus Service 188e

  • 5 October 2023 at 5:57 AM

    Should have introduced the evening peak route for Express 188e from HarbourFront Bus Interchange to Choa Chu Kang Bus Interchange just like 963e.


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