The route operates from Ang Mo Kio Bus Interchange and ends at Mandai Lake Road (S’pore Zoo), operating during the mornings of Weekends & Public Holidays.
|Route||Ang Mo Kio Bus Interchange → Mandai Lake Road (S’pore Zoo)|
|Passes Through||Ang Mo Kio Ave 6, Ang Mo Kio Ave 5, Upp Thomson Rd, Mandai Rd|
|Route Length||13.5 km|
|Traveling Time||40 mins|
|BCM Route Package||Seletar Bus Package|
|Current Operator||SBS Transit Ltd|
|Current Depot||Seletar Bus Depot|
|Current Fleet||12-metre Single Deck Bus
– Mercedes-Benz Citaro
|Departure Times from Ang Mo Kio
||Saturdays||Sundays / Public Holidays
|08:32 – 12:13||08:24 – 12:29|
|Fare||Charges regular distance fares
Short Trip Service 138A is a trunk service operating from Ang Mo Kio Bus Interchange and ends at Mandai Lake Road (S’pore Zoo).
The Short-Trip Service operates on weekends & public holidays to supplement the high demand for Service 138 from Ang Mo Kio MRT/Int to the tourist attractions at Mandai, mainly – Singapore Zoo & River Safari.
- From Ang Mo Kio Int:
Saturdays: 08:32, 08:46, 09:00, 09:14, 09:28, 09:42, 09:56, 10:10, 10:24, 10:38, 10:52, 11:06, 11:20, 11:34, 11:47, 12:00 & 12:13
Sundays / Public Holidays: 08:24, 08:37, 08:50, 09:17, 09:44, 10:12, 10:40, 10:54, 11:21, 11:35, 11:48, 12:02, 12:15 & 12:29
MRT Station Served
- NS16 Ang Mo Kio
- 2012 – Present: SBS Transit Ltd
The Bus Service Operating License (BSOL) for this route will be renewed in 2023 under the Seletar Bus Package.
- 2012 (01 Dec): Introduced from Ang Mo Kio Integrated Transport Hub to Mandai Lake Rd (S’pore Zoo) on Saturdays, Sundays and Public Holidays
- 2018 (11 Mar): Start of operations under Seletar Bus Package (Tendered Contract)
- 2018 (14 Oct): Skips abolished bus stop before Singapore Zoo along Mandai Lake Rd