SMRT Bus Service 857A

SMRT Bus Service 857A is a Short-Trip Service variant of Bus Service 857.

The route operates from Yishun Bus Interchange and ends at Yio Chu Kang Road (Opp Sunrise Gdns), operating only during the weekday morning peak hours.

Yishun Int → Opp Sunrise Gdns
59009 Yishun Int NS13 Yishun Ave 2
59069 Opp Blk 757 Yishun Ave 2
59059 Blk 608 Yishun Ave 2
59049 Opp Khatib Stn NS14 Yishun Ave 2
59039 Yishun Sports Hall Yishun Ave 2
59029 Aft Yishun Ave 1 Lentor Ave
59019 Aft Sg Seletar Bridge Lentor Ave
55269 Opp Bullion Pk Condo Lentor Ave
55259 Opp Countryside Est Lentor Ave
55249 Bef Yio Chu Kang Rd Lentor Ave
55031 Opp NCS Hub Yio Chu Kang Rd
55041 Opp Ue Bizhub Ctrl Yio Chu Kang Rd
55051 Opp ST Electronics Yio Chu Kang Rd
55071 Bef ECON Medicare Ctr Yio Chu Kang Rd
55081 Opp Sunrise Gdns Yio Chu Kang Rd
Route Overview
Route WAB_logo_20px Yishun Bus Interchange → Yio Chu Kang Road (Opp Sunrise Gdns)
Passes Through Yishun Ave 2, Lentor Ave
Route Length 7.1 km
Traveling Time 24 mins
Operator Information
BCM Route Package Sembawang–Yishun Bus Package
Current Operator SMRT Buses Ltd
Current Depot Ang Mo Kio Bus Depot (AMDEP)
Majority of buses park at: Yishun Temporary Bus Interchange
Current Fleet 12-metre Double Deck Bus:
– Alexander Dennis Enviro500
– MAN A95
Operating Hours
Departure Times from Yishun
Weekdays, except Public Holidays
07:08 – 07:21
Fare Information
Fare Charges regular distance fares


Short Trip Service 857A is a trunk service operating from Yishun Bus Interchange and ends at Yio Chu Kang Road (Opp Sunrise Gdns).

As a Short-Trip Service, the route operates during Weekday Morning Peak hours and supplements the high demand for Bus Service 857 from Yishun and Khatib to industrial buildings along Yio Chu Kang Road.

MRT Stations Served
Departure Timings
  • From Yishun Interchange:
    Weekdays: 07:08 & 07:21


Operator History:
  • 12 Aug 2013 – Present: SMRT Buses Ltd
  • (~September 2021) onwards: Tower Transit Singapore Pte Ltd

Operations for this route would be transferred to Tower Transit in 2021 as part of the Sembawang–Yishun Bus Package.

The Bus Service Operating License (BSOL) for this route will be renewed in 2026 under the Sembawang–Yishun Bus Package.

  • 2013 (12 Aug): Introduced from Yishun Int to Yio Chu Kang Rd (Opp Sunrise Gdns) during morning peak hours on weekdays
  • 2015 (14 Mar): Amended to Yishun Temp Int via Yishun Central 1
  • 2019 (08 Sep): Amended to Yishun Integrated Transport Hub, skipping Yishun Central 1
  • 2020 (12 Jan): Skips an abolished bus stop under Lentor Flyover along Lentor Ave

Back to Bus Service 857
Back to Bus Services
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