Tower Transit Bus Service 857AÂ 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.
→ Opp Sunrise Gdns
| Route Overview | ||||||||||||
Route  |
Yishun Bus Interchange → Yio Chu Kang Road (Opp Sunrise Gdns) | |||||||||||
| Passes Through | Yishun Ave 2, Lentor Ave | |||||||||||
| Route Length | 7.1 km | |||||||||||
| Travelling Time | 24 mins | |||||||||||
| Operator Information | ||||||||||||
| BCM Route Package | Sembawang–Yishun Bus Package | |||||||||||
| Current Operator | Tower Transit Singapore Pte Ltd (Tower Transit Singapore) |
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| Current Depot | Mandai Bus Depot | |||||||||||
| Current Fleet | Single-deck buses | |||||||||||
| Operating Hours | ||||||||||||
| Departure Times from Yishun |
Weekdays, except Public Holidays | |||||||||||
| 07:12 | ||||||||||||
| Fare Information |
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| Fare | Charges regular distance fares |
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Short Trip Service 857AÂ 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 857Â from Yishun and Khatib to industrial buildings along Yio Chu Kang Road.
MRT Stations Served
Departure Timings
- From Yishun Interchange:
Weekdays: 07:12
Gallery (Tower Transit):
Gallery (SMRT Buses):
Poster Gallery:
![[Updated] Route Amendment for Services 854, 854e, 855 & 857 - Opening of Yishun Integrated Transport Hub](https://landtransportguru.net/web/wp-content/uploads/2019/09/Sep19_Yishun-ITH-Opening_Sv854_854e_855_857_Updated-212x300.png)
Operator History:
- 12 Aug 2013 – 04 Sep 2021: SMRT Buses Ltd
- 05 Sep 2021 – Present: Tower Transit Singapore Pte Ltd
The Bus Service Operating License (BSOL) for this route will be renewed in 2026 under the Sembawang–Yishun Bus Package.
History:
- 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
- 2021 (05 Sep): Operations transferred to Tower Transit under the Sembawang-Yishun Bus Package
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