SMRT Bus Service 991B

SMRT Bus Service 991B is a Short-Trip Service variant of Bus Service 991.

The route operates from Choa Chu Kang Bus Interchange and ends at Choa Chu Kang Avenue 1 (Opp Choa Chu Kang Mkt), operating daily, after the last bus of Service 991 has departed.

Route Overview
Route	Choa Chu Kang Bus Interchange → Choa Chu Kang Avenue 1 (Opp Choa Chu Kang Mkt)
Passes Through	Choa Chu Kang Dr, Keat Hong Link
Route Length	3.2 km
Travelling Time	11 mins
Operator Information
BCM Route Package	Choa Chu Kang–Bukit Panjang Bus Package
Current Operator	SMRT Buses Ltd
Current Depot	Kranji Bus Depot (KJDEP) Buses park at: Bulim Bus Depot (BUDEP)
Current Fleet	Double-deck buses
Operating Hours
Departure Times from Choa Chu Kang	Weekdays				Saturdays & Sundays / Public Holidays
	00:17 – 00:55				00:18 – 00:55
Fare Information
Fare	Charges regular distance fares

Short Trip Service 991B is a trunk service operating from Choa Chu Kang Bus Interchange and ends at Choa Chu Kang Avenue 1 (Opp Choa Chu Kang Mkt).

The Short-Trip Service offers unidirectional trips serving the Choa Chu Kang estate during the late night hours (after the last bus of Bus Service 991 has departed), without having to operate full-distance trips of Service 991.

MRT / LRT Station Served

• NS4BP1 Choa Chu Kang

Departure Timings

• From Choa Chu Kang Interchange:
  Weekdays: 00:17, 00:36 & 00:55
  Saturdays & Sundays / Public Holidays: 00:18, 00:36 & 00:55

Gallery:

Operator History:

• 30 Sep 2018 – Present: SMRT Buses Ltd

The Bus Service Operating License (BSOL) for this route will be renewed in 2026 under the Choa Chu Kang–Bukit Panjang Bus Package.

History:

• 2018 (30 Sep): Introduced as a short-trip service from Choa Chu Kang Int to Choa Chu Kang Ave 1 (Opp Choa Chu Kang Mkt), operating after the last bus of Service 991 daily. Wheelchair-accessible at launch
• 2018 (16 Dec): Amended to relocated Choa Chu Kang Int

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