SMRT Bus Service 991A

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

The route operates from Bukit Batok Bus Interchange and ends at Bukit Batok West Avenue 3 (Princess E Pr Sch), operating daily, after the last bus of Service 991 has departed.

Route Overview
Route	Bukit Batok Bus Interchange → Bukit Batok West Avenue 3 (Princess E Pr Sch)
Passes Through	Bukit Batok St 11
Route Length	1.8 km
Travelling Time	8 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 Bus: – Alexander Dennis Enviro500 – MAN A95
Operating Hours
Departure Times from Bukit Batok	Daily
	00:15 – 01:00
Fare Information
Fare	Charges regular distance fares

Short Trip Service 991A is a trunk service operating from Bukit Batok Bus Interchange and ends at Bukit Batok West Avenue 3 (Princess E Pr Sch).

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 Station Served

• NS2 Bukit Batok

Departure Timings

• From Bukit Batok Interchange:
  Daily: 00:15, 00:30, 00:45 & 01:00

Gallery:

Operator History:

• 08 Jul 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 (08 Jul): Introduced as a short-trip service from Bt Batok Int to Bt Batok West Ave 3 (Princess E Pr Sch), operating after the last bus of Service 991 daily. Wheelchair-accessible at launch.

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