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 Bukit Batok 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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