Go-Ahead Express Bus Service 518

Go-Ahead Express Bus Service 518 is an Express service running from Pasir Ris Interchange and looping at Bayfront Avenue, passing through Tampines, Bedok North, Moulmein, Orchard, Suntec City and Bayfront. A uni-directional morning peak route variant, Express 518A, is also operated.

Go Ahead Loyang Pte Ltd (Go-Ahead Singapore) took over operations of this bus service from SBS Transit from 18 September 2016 under the Loyang Bus Package. The route has also been amended to ply ECP / KPE / PIE instead of ECP / Bedok South Ave 1 / Bedok South Rd / Bedok North Ave 1.

Route Information
Route Pasir Ris Bus Interchange ↺ Bayfront Avenue  WAB_logo_20px
Passes Through Tampines, Moulmein, Orchard, Suntec City, Marina Bay
Route Length 63.2 km
Travelling Time 155 mins
Operator Information
GCM Route Package
Loyang Bus Package
Current Operator Go-Ahead Singapore
Current Depot Loyang Bus Depot
Current Fleet 12-metre Double Deck bus:
– Volvo B9TL
12-metre Single Deck bus:
– Mercedes-Benz O530 Citaro
Departure Times from Pasir Ris
0600hrs – 2200hrs (Weekdays, Saturdays)
0700hrs – 2200hrs (Sundays/PHs)
Frequency Loop Service
0630-0830: 11 – 20 mins
0831-1659: 15 – 20 mins
1700-1930: 15 – 20 mins
After 1930: 16 – 20 mins

Route History

Express Service 518 connects the residential estates of Pasir Ris and Tampines to the City areas of Moulmein, Orchard Road, Marina Centre and Bayfront. It incorporates a express sector from Bedok North Road to Moulmein Road via PIE and CTE, and another express sector via ECP (ECP, KPE & PIE from 18 Sep 2016) from Bayfront back to Bedok. The route is popular among residents in Pasir Ris and Tampines as a fast bus connection between home and City, and double-deck buses were introduced to the fleet in 2014.

In 1997, the route numbered Express 503 was introduced by SBS as a unidirectional peak-hour Express service between Tampines Int and Temasek Ave/Anson Rd, operating City-bound trips in the morning and return trips in the evening. It was later renumbered Express 505 in 1999, converted to a full day service and extended at both ends to start from Pasir Ris Int and loop at Telok Blangah Rd. Finally, it was renumbered to Express 518 in 2000 and shortened to loop at Marina Centre. The route has not seen any major amendments since, except for the 2012 amendment which extended it to loop at Bayfront.

A peak hour variant, Express 518A, operates during the Weekdays AM Peak with two departures from Pasir Ris Int terminating at Bayfront. These trips skip the Tampines and Bedok North sectors of the route, allowing for faster commute from Pasir Ris to the City.

Buses may ply alternative routes along the Express sector subject to traffic conditions.

Amendment to KPE

Service 518 was planned to be amended to ply the Kallang-Paya Lebar Expressway (KPE) and Pan-Island Expressway (PIE) between Bayfront and Bedok North on the first day of Go-Ahead operations (18 Sep 2016), reportedly specified within the contract details, and was reflected as such in official route information (TransitLink website). However, Go-Ahead service guide lists the old express routing via Bedok North, and buses have been following the old routing in the early days of Go-Ahead operations.

Go-Ahead formally began using the amended route via KPE on Friday, 23 September 2016.

Special Departures:
  • Tampines Avenue 7 (Blk 370) Pasir Ris Int, via Bayfront Avenue
    Weekdays AM Peak
  • Moulmein Road (Opp Tan Tock Seng Hosp)  Pasir Ris Int, via Bayfront Avenue
    Daily, after the last Full Trip bus of Service 518 (~2300hrs – 2400hrs)
Go-Ahead Mercedes-Benz Citaro (SBS6534M) - Service 518A
Go-Ahead Mercedes-Benz Citaro (SBS6534M) – Service 518A
Peak Hour Variants:
  • Express Bus Service 518A: Pasir Ris Interchange → Bayfront Avenue WAB_logo_20px
    Weekdays, 0700hrs and 0730hrs. Express from Loyang Ave to Moulmein Rd, skipping Tampines / Bedok North

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

Route Information:

Loop Service (via Bayfront Ave)
  • Pasir Ris Dr 3
    – Pasir Ris Int  EW1 
    – Blk 500A
    – Aft Blk 601
    – Blk 626
    – Blk 713
  • Pasir Ris Dr 12
    – Blk 717
    – Aft Pasir Ris St 72
  • Pasir Ris Dr 1
    – Blk 738
    – Blk 643
    – Blk 640
    – Blk 612
    – Blk 515
    – Blk 571
    – Bef Pasir Ris Ctrl
    – Pasir Ris Town Pk
    – Blk 425
    – Blk 442
    – Blk 210
    – Blk 269A
  • Loyang Ave
    – Opp Blk 149A
  • Tampines Ave 7
    – Blk 370
    – Opp Tampines JC
  • Tampines Ave 2
    – Blk 302
    – Blk 285
    – The Holy Trinity Ch
    – Blk 101
  • Tampines Ave 1
    – SAFRA Tampines  DT31 
    – Temasek Poly East G
    – Temasek Poly
    – Temasek Poly West G
    – Tropica Condo
  • Tampines Ave 10 (Express)
  • Bedok North Rd
    – Bet Blks 705/706  DT29 
  • PIE (express)
  • CTE (express)
  • Moulmein Rd
    – Opp Tan Tock Seng Hosp
    – St. Michael’s Sch
  • Newton Rd
    – Hotel Royal
  • Newton Circus (Express)
  • Scotts Rd
    – Newton Stn  NS21  DT11

    – Env Bldg
    – Far East Plaza
  • Orchard Rd
    – Delfi Orchard
    – Royal Thai Embassy
    – Tang Plaza  NS22 
    – Opp Mandarin Orchard
    – Concorde Hotel S’pore  NS23 
    – Dhoby Ghaut Stn  NS24  NE6  CC1 
  • Bras Basah Rd
    – Rendezvous Hotel S’pore  DT21 
    – NTUC Income Ctr  CC2 
    – Raffles Hotel
  • Temasek Blvd
    – Suntec Convention Ctr  CC3 
  • Temasek Ave
    – Opp Millenia Twr  CC4  DT15 
    – Opp The Ritz-Carlton

  • Bayfront Ave
    – Marina Bay Sands Hotel
    – Opp Marina Bay Sands MICE  CE1  DT16 
  • Marina Blvd (Express)
  • Sheares Ave (Express)
  • ECP (Express)
  • KPE (Express)
  • PIE (Express)
  • Bedok North Rd
    – Opp Blks 705/706  DT29 
  • Tampines Ave 10 (Express)
  • Tampines Ave 1
    – Opp Tropica Condo
    – Opp Temasek Poly West G
    – Opp Temasek Poly
    – Opp Temasek Poly East G
    – Opp SAFRA Tampines  DT31 
  • Tampines Ave 2
    – Blk 141
    – Opp The Holy Trinity Ch
    – Blk 206
    – Tampines East CC
  • Tampines Ave 7
    – Tampines JC
    – Blk 497D
  • Loyang Ave
    – Blk 149A
  • Pasir Ris Dr 1
    – Blk 156
    – Blk 197
    – Blk 104
    – Blk 115
    – Blk 541
    – Aft Pasir Ris Ctrl
    – Opp Blk 571
    – Opp Blk 515
    – Opp Blk 640
    – Meridian JC
    – Blk 740
  • Pasir Ris Dr 12
    – Aft Pasir Ris Dr 1
    – Opp Blk 717
  • Pasir Ris Dr 3
    – Opp Blk 713
    – Opp Blk 626
    – Opp Blk 601
    – Opp Blk 500A
    – Pasir Ris Int  EW1  


  • Express 518 will ply via ECP, KPE & PIE along its return leg from the city from 23 September 2016.

MRT Stations served by this route:

Service 518/A at a glance
Service 518/A at a glance


Operator History:

  • 1997 – 2001: Singapore Bus Services Ltd
  • 2001 – 17 Sep 2016: SBS Transit Ltd
  • 18 Sep 2016: Go Ahead Loyang Pte Ltd

The Bus Service Operating License (BSOL) for this route will be renewed in 2021 under the Loyang Bus Package.


  • 1997 (05 May): Introduced as Express 503, unidirectional peak-hour service:
    Tampines Int – Temasek Ave (AM Peak); Anson Rd – Tampines Int (PM Peak)
  • 1999 (Sep): Renumbered Express 505, Pasir Ris Int – Jln Bukit Merah/Telok Blangah Rd (Loop)
  • 2000 (Sep): Renumbered Express 518, operating as Pasir Ris Int ↺ Marina Ctr via Orchard Rd
  • 2005 (26 Dec): Extended to ply Pasir Ris Drive 12. During peak hours, Service 518 will cease operaing and be replaced with two new route variants 518A and 518B, each serving different parts of Service 518’s estern catchment as such:
    – 518A: Pasir Ris Int to Loyang Ave → Marina Centre (Loop)
    – 518B: Tampines Ave 7 to Tampines Ave 1 →  Marina Centre (Loop).
  • 2010 (26 Apr): Extended to serve the Bayfront areas. Service 518A amended to AM Peak unidirectional service terminating at Bayfront Ave, Service 518B withdrawn on the same day. Service 518 to operate during peak hours to cover Service 518B.
  • 2012 (29 Apr): Designated wheelchair-accessible bus route (WAB)
  • 2014 (25 Aug) Double-decker Volvo B9TL Wright buses added.
  • 2016 (18 Sep): Operations transferred to Go Ahead Loyang Pte Ltd from SBS Transit Ltd. Route amended to ply via KPE & PIE on its return journey.

Past Routings:

External Links & References:

Back to Express Bus Services
Back to Bus Services

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