SMRT Express Service 188E

SMRT Bus Service 188E is an AM-Peak uni-directional limited-stop express route from Choa Chu Kang Interchange to HarbourFront Interchange, passing through Choa Chu Kang Way, Bukit Gombak, Bukit Batok, Toh Guan, AYE, Clementi Road and Pasir Panjang. Its parent route is 188 and has a weekend variant 188R.

Bus Service 188E: Choa Chu Kang → HarbourFront
AM Peak
Direction 1
From Choa Chu Kang
  • Choa Chu Kang Loop
    – Choa Chu Kang Int NS4BP1
  • Choa Chu Kang Way
    – Blk 352
    – Blk 224 BP2
    – Blk 239 BP3
    – Blk 113
  • Bt Batok Rd (Express)
  • Bt Batok West Ave 5 (Express)
  • Bt Batok West Ave 7
    – Opp HomeTeamNS
    – Blk 334
  • Bt Batok West Ave 4
    – Blk 331
  • Bt Batok West Ave 2
    – Blk 315
    – Blk 306
    – Aft Bt Batok West Ave 5
  • Bt Batok West Ave 3
    – Bt Batok Polyclinic
  • Bt Batok West Ave 6
    – Opp Blk 144
    – Blk 109
  • Bt Batok Ave 1
    – Blk 298
  • Jurong East Ctrl
    – Blk 266
  • Toh Guan Rd
    – Opp Blk 288D
    – Blk 284
    – Opp IMM Bldg
  • Jurong East St 11 (Express)
  • Jurong Town Hall Rd (Express)
  • AYE
    – Blk 431
  • Clementi Rd
    – NUS Fac of Engrg
    – NUS Fac of Architecture
    – Bef Kent Ridge Ter
  • West Coast Highway (Express)
  • Pasir Panjang Rd
    – Opp Currency Hse CC26
    – Harbourside Ind Bldg 2
    – Mapletree Business City
    – Labrador Pk Stn/PSA Bldg CC27
  • Telok Blangah Rd (Express)
  • Seah Im Rd
    – HarbourFront Int NE1CC29


Technical Information
Route WAB_logo_20px
Choa Chu Kang Bus Interchange HarbourFront Bus Interchange
Passes Through Choa Chu Kang Way, Bukit Gombak, Bukit Batok, Toh Guan, AYE, Clementi Rd, Pasir Panjang
Route Length 21.7 km
Travelling Time 65 mins
Operator Information
BCM Route Package Choa Chu Kang – Bukit Panjang Bus Package
Current Operator SMRT Buses Ltd
Current Depot Kranji Bus Depot (KJDEP)
Current Fleet 12-metre Double Deck Bus:
Alexander Dennis Enviro500
Volvo B9TL
12-metre Single Deck Bus
Departure Times from Choa Chu Kang
0708hrs – 0723hrs (Weekdays, Except Public Holidays)
Frequency Unidirectional Service
15 mins


Introduced on 25th June 2007, Service 188E links the residential estates of Choa Chu Kang, Bukit Batok, Jurong East and Clementi (bus stop at Blk 431 only) 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.

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.

Fare: Charges express distance fares. See Bus Fares. Calculate your bus fare using LTA’s fare calculator on here.

Departure Timings
  • From Choa Chu Kang Bus Interchange: 0708hrs & 0723hrs
MRT / LRT Stations Served
Route Variants



Operator History
  • 2007 – Present: SMRT Buses Ltd

The Bus Service Operating License (BSOL) for this route will be renewed in 2023 under the Choa Chu Kang – Bukit Panjang Bus Package.


  • 2007 (25 Jun): Introduced as a unidirectional peak hour service to provide commuters with a faster link from Choa Chu Kang to HarbourFront Int. Departs Choa Chu Kang Interchange between 7.08am to 7.23am. Charges Express fares and concessionary travel is not applicable.
  • 2015 (22 Mar): Designated wheelchair-accessible bus route (WAB)

Past Routings:

External Links & References:

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