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.

Route Information
Route Choa Chu Kang Bus Interchange → HarbourFront Bus Interchange WAB_logo_20px
Passes Through Choa Chu Kang Way, Bukit Gombak, Bukit Batok, Toh Guan, AYE, Clementi Rd, Pasir Panjang
Route Length 21.7km
Travelling Time 60 – 65 mins
Operator Information
BCM Route Package Choa Chu Kang – Bukit Panjang Bus Package
Current Operator SMRT Buses
Current Depot Kranji Bus Depot
Current Fleet 12-metre Double Deck Bus:
Alexander Dennis Enviro500
– Volvo B9TL
Departure Times from Choa Chu Kang 0708 – 0723 (Weekdays)
Frequency Loop Service
0630-0830: 15 mins
0831-1659: –
1700-1930: –
After 1930: –
SMRT Route Diagram
SMRT Route Diagram

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 daily, departing Choa Chu Kang Interchange at 7:08am and 7:23am 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.

Route Variants:

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

Route Information:

Unidirectional Route
  1. Choa Chu Kang Int
    Choa Chu Kang Ave 4
  2. Choa Chu Kang Way (Blk 352)
  3. Choa Chu Kang Way (Blk 224)
  4. Choa Chu Kang Way (Blk 239)
  5. Choa Chu Kang Way (Blk 113)
    Bt Batok Rd (express)
  6. Bt Batok West Ave 7 (opp HomeTeam NS)
  7. Bt Batok West Ave 7 (Blk 334)
  8. Bt Batok West Ave 4 (Blk 331)
  9. Bt Batok West Ave 2 (Blk 315)
  10. Bt Batok West Ave 2 (Blk 306)
  11. Bt Batok West Ave 2 (aft Bt Batok West Ave 5)
  12. Bt Batok West Ave 3 (Bt Batok Polyclinic)
  13. Bt Batok West Ave 6 (opp Blk 144)
  14. Bt Batok West Ave 6 (Blk 109)
  15. Bt Batok Ave 1 (Blk 298)
  16. Jurong East Central (Blk 266)
  17. Toh Guan Rd (opp Blk 288D)
  1. Toh Guan Rd (opp Blk 288D)
  2. Toh Guan Rd (Blk 284)
  3. Toh Guan Rd (opp IMM Bldg)
    Jurong East St 11 (express)
    Jurong Town Hall Rd (express)
    AYE (express)
  4. Ayer Rajah Expressway (Blk 431)
    AYE (express)
    Clementi Rd (express)
  5. Clementi Rd (NUS Fac of Engrg)
  6. Clementi Rd (NUS Fac of Architecture)
  7. Clementi Rd (bef Kent Ridge Ter)
    West Coast Rd (express)
    Pasir Panjang Rd (express)
  8. Pasir Panjang Rd (opp Currency Hse)
  9. Pasir Panjang Rd (Harbourside Ind Bldg 2)
  10. Pasir Panjang Rd (Mapletree Business City)
  11. Pasir Panjang Rd (PSA Bldg)
    Telok Blangah Rd (express)
  12. HarbourFront Int

Operator History:

  • 2007 – Present: SMRT Buses Ltd

The Bus Service Operating License (BSOL) for this route will be renewed in 2016.


  • 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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