Tower Transit Bus Service 856 is a trunk route linking Yishun Bus Interchange and Woodlands Bus Interchange, passing through Chong Pang, Sembawang, Senoko Industrial Estate, Woodlands North MRT, Woodlands Train Checkpoint and Marsiling MRT.

Notes:
- Service 856 towards both Yishun Int & Woodlands Int duplicates at Woodlands North Coast Road. Check the bus destination before boarding.
– Wheelchair Inaccessible Bus Stop
| Route Overview | ||||||||||||
| Route |
Yishun Bus Interchange ↔ Woodlands Integrated Transport Hub | |||||||||||
| Passes Through | Sembawang Rd, Canberra Rd, Admiralty Rd West, Senoko Dr, Admiralty Rd, Woodlands Ctr Rd | |||||||||||
| Route Length | Towards Woodlands: 16.3 km |
Towards Yishun: 17.2 km |
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| Travelling Time | 60 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 | Double-deck buses | |||||||||||
| Operating Hours | ||||||||||||
| Departure Times from Yishun |
Daily | |||||||||||
| 05:30 – 23:45 | ||||||||||||
| Departure Times from Woodlands |
Daily | |||||||||||
| 05:30 – 23:50 | ||||||||||||
| Operating Frequency | ||||||||||||
| From Yishun | 6:30am–8.30am | 8.31am–4.59pm | 5.00pm–7.00pm | After 7.00pm | ||||||||
| Weekdays | 5 – 6 mins | 5 – 11 mins | 5 – 7 mins | 5 – 12 mins | ||||||||
| Saturdays | 9 – 11 mins | 8 – 14 mins | 8 – 12 mins | 10 – 14 mins | ||||||||
| Sundays / Public Holidays | 11 – 12 mins | 10 – 13 mins | 10 – 13 mins | 12 – 15 mins | ||||||||
| From Woodlands | 6:30am–8.30am | 8.31am–4.59pm | 5.00pm–7.00pm | After 7.00pm | ||||||||
| Weekdays | 4 – 6 mins | 6 – 10 mins | 5 – 8 mins | 5 – 12 mins | ||||||||
| Saturdays | 6 – 9 mins | 8 – 13 mins | 11 – 12 mins | 12 – 15 mins | ||||||||
| Sundays / Public Holidays | 12 – 15 mins | 10 – 14 mins | 9 – 13 mins | 9 – 14 mins | ||||||||
| Fare Information |
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| Fare | Charges regular distance fares |
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Service 856 is a trunk service linking both residential and industrial areas around Marsiling, Admiralty Road West, Senoko and Sembawang Rd to various MRT stations and transport nodes. It is also the sole public bus service serving sections of Admiralty Rd, Admiralty Rd West, and Woodlands North MRT.
With high demand from both residential and industrial sectors, nearly all buses deployed on the route are high-capacity double-deck buses.
During peak hours, Service 981 compliments the service by strengthening bus connections between Sembawang MRT/Int and industrial areas around Admiralty Road West and Senoko.
Service 856 also encounters high demand from cross-border commuters heading from Woodlands Int/Marsiling MRT to Woodlands Checkpoint. Although duplicated by Service 950 along this sector, Service 950 is often filled to capacity when departing Woodlands Temporary Bus Interchange, especially during peak hours.
With the opening of Thomson-East Coast Line 1 on 31 January 2020, Service 856 was amended to serve Woodlands North MRT Station along Woodlands North Coast Road in both directions (towards Yishun and towards Woodlands). Commuters should check the destination displayed on the bus Electronic Display Sign when boarding at Woodlands North.
MRT Stations Served
- NS13 Yishun
- NS11 Sembawang
- TE1 Woodlands North
- NS8 Marsiling
- NS9TE2 Woodlands
Special Departures
- Canberra Rd (Bef Sembawang Stn) → Woodlands Int
Weekdays: 17:14, 17:46 & 18:29
Sundays / Public Holidays: 18:38, 20:57, 22:06, 22:21 & 22:36 - Admiralty Rd West (Opp British American Tobacco) → Woodlands Int
Weekdays: 16:44, 17:01, 17:11, 17:39, 17:55, 18:06, 18:22 & 18:36 - Woodlands Ave 3 (Opp Marsiling Stn) → Yishun Int
Weekdays: 05:25 - Woodlands Ctr Rd (W’lands Train Checkpt) → Yishun Int
Weekdays: 05:20, 05:25 & 05:37
Saturdays: 05:30 & 05:36
Short Trip Services
- Service 856A: Woodlands Int → Woodlands Centre Rd (W’lands Train Checkpt)
Weekdays, except Public Holidays: 17:08 – 19:53 - Service 856B: Woodlands Int → Canberra Rd (Aft Admiral Hill)
Weekdays, except Public Holidays: 06:44 – 08:23 - Service 856C: Admiralty Rd (Blk 23) → Admiralty Rd West (Bef British American Tobacco)
Weekdays (except Public Holidays): 06:54 – 08:34
Gallery (Tower Transit):
Gallery (SMRT Buses) at Page 2.
Poster Gallery
Operator History:
- 1988 – 2004: Trans-Island Bus Services Ltd
- 2004 – 04 Sep 2021: SMRT Buses Ltd
- 05 Sep 2021 – Present: Tower Transit Singapore Pte Ltd
Route History:
- 1988 (25 Dec): Introduced between Yishun Int and Woodlands Int
- 1996 (04 Feb): Extended to Woodlands Regional interchange
- 1996 (10 Mar): Amended to ply Canberra Rd under Woodlands MRT Rationalisation, skipping Admiralty Rd East
- 1999: Serves new pair of bus stops before Sembawang Stn and after Admiralty Country Club along Canberra Rd
- 1999 (19 Jul): Serves new bus stop outside Woodlands CIQ along Woodlands Rd
- 2002 (07 Jul): Serves the bus stop outside Blk 923 along Yishun Ave 2, skipping the bus stop outside Northpoint Shop Ctr
- 2015 (14 Mar): Amended to Yishun Temp Int
- 2016 (12 Mar): Amended to Woodlands Temp Int
- 2017 (17 Sep): Designated wheelchair-accessible bus service (WAB)
- 2019 (08 Sep): Amended to Yishun Integrated Transport Hub
- 2020 (31 Jan): Amended to serve Woodlands North Coast Road
- 2021 (13 Jun): Amended to Woodlands Integrated Transport Hub
- 2021 (05 Sep): Operations transferred to Tower Transit under the Sembawang–Yishun Bus Package
- 2022 (24 Apr): Amended to ply the realigned Woodlands Nth Coast Rd
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856 should be under Woodlands.