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.

Technical Information
Route	Yishun Bus Interchange → Yio Chu Kang Road (Opp Sunrise Gdns)
Passes Through	Yishun Ave 2, Lentor Ave
Route Length	7.6 km
Journey 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
Departure Times	Weekdays, except Public Holidays From Yishun Interchange: 0708hrs & 0721hrs

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 AM Peak hours and supplements the high demand for Bus Service 857 from Yishun and Khatib to industrial buildings along Yio Chu Kang Road.

Departure Timings

• From Yishun Interchange:
  Weekdays: 0708hrs & 0721hrs

Fare: Charges regular distance fares for trunk services. See Bus Fares.

MRT Stations Served

• NS13 Yishun
• NS14 Khatib

Gallery:

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.

Route History:

• 2013 (12 Aug): Introduced from Yishun Int to Yio Chu Kang Road (Opp Sunrise Gdns)
• 2015 (14 Mar): Amended to Yishun Temp Int
• 2019 (08 Sep): Amended to Yishun Integrated Transport Hub
• 2020 (12 Jan): Skips removed bus stop 55279 – Lentor Flyover along Lentor Ave

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