Bus Service 138

Service 138
Route Information
Route	Ang Mo Kio Bus Interchange ↺ Mandai Lake Road (Loop)
Route Length	27.7 km
Travelling Time	80 mins (1 h 20 mins)
Operator	(Seletar Bus Package)

Bus Service 138 connects Ang Mo Kio Town Centre with the Mandai region, serving Bird Paradise, Singapore Zoo, River Wonders and Night Safari along Mandai Lake Road, as well as Mandai Crematorium & Columbarium and Upper Seletar Reservoir Park along Mandai Road. It also supplements bus connections for residents around Mandai, Springleaf and Ang Mo Kio Ave 5 to Ang Mo Kio Town Centre.

Service Information

Bus Duty & Fleet

Service 138/138A/138B

Depot	Fleet Size			Fleet
	138	138A	138B
Seletar Depot (SEDEP)	11	4	2	11 Single Deckers
				SMB3104A SMB3105Y SMB3106U SMB3109LB MAN NL323F SBS2002H SBS6591Y SBS6592U SG1088DB SG1094K Mercedes-Benz O530 Citaro

ExpandNotes
SG1146U (Duty 32S) & SG1152B (Duty 29S) (Service 70) will perform crossover trips on Service 138 during Weekdays PM Peak. Weekdays: 5A-6P / 1E / 4S (11 buses) Weekdays Sch Hols: 8A-9P / 4T (13 buses) Saturdays: 6A-7P / 5T (12 buses) Sundays & Public Holidays: 5A-6P / 6T (12 buses) Special Weekdays: 7A-7P / 2E / 1T (10 buses) Special Sundays: 5A-9P / 6T (15 buses)

ExpandService 138 duty allocation
Weekdays (5A-6P / 1E / 4S)
	A/P	SBS2002H, SBS6591Y & SMB3104A
	P
	E	SMB3109L
	S	TBC

Route Information

Frequency

Period	AM Peak (First Bus - 08:30)	AM Off Peak (08:31 - 16:59)	PM Peak (17:00 - 19:00)	PM Off Peak (19:01 - Last Bus)
Loop Service	11 - 14 minutes	09 - 15 minutes	09 - 14 minutes	12 - 13 minutes

Special Departures

• 48131

  S'pore Zoo
  Mandai Lake Rd
  Mandai Zoo
  Mandai Night Safari
  Mandai River Wonders →
  54009

  Ang Mo Kio Int
  Ang Mo Kio Ave 8
  NS16Ang Mo Kio
  AMK Hub
  • Saturdays: 14:50, 14:58, 15:31, 15:42, 16:03, 16:23, 16:43, 16:54, 17:04, 17:24, 17:44, 18:04, 18:15, 18:25, 18:36, 18:57 & 19:07
  • Sundays/Public Holidays: 14:47, 15:07, 15:28, 15:39, 16:01, 16:11, 16:21, 16:32, 16:43, 16:53, 17:24, 17:35, 17:46, 17:57, 18:08, 18:20 & 18:52
• 55129

  Blk 604
  Ang Mo Kio Ave 5
  →
  54009

  Ang Mo Kio Int
  Ang Mo Kio Ave 8
  NS16Ang Mo Kio
  AMK Hub
  • Weekdays: 06:38, 06:47 (SG1088D/SMB3109L), 06:56 (SG1088D/SMB3109L), 07:11 (SG1088D/SMB3109L), 07:24 (SG1088D/SMB3109L), 07:36 (SG1088D/SMB3109L), 07:48 (SG1088D/SMB3109L), 08:07 (SG1088D/SMB3109L) & 08:26 (SG1088D/SMB3109L)
  • Saturdays: 06:38, 07:07 & 07:24

Short-Trip Service 138A

• 54009

  Ang Mo Kio Int
  Ang Mo Kio Ave 8
  NS16Ang Mo Kio
  AMK Hub →
  48131

  S'pore Zoo
  Mandai Lake Rd
  Mandai Zoo
  Mandai Night Safari
  Mandai River Wonders
  • 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, 08:38, 08:50, 09:17, 09:44, 10:12, 10:40, 10:54, 11:21, 11:35, 11:50, 12:02, 12:15 & 12:29

Special Departures

• 56091

  Springleaf Stn Exit 3
  Upp Thomson Rd
  TE4Springleaf →
  48131

  S'pore Zoo
  Mandai Lake Rd
  Mandai Zoo
  Mandai Night Safari
  Mandai River Wonders
  • Weekdays: 07:09 & 07:55

Short-Trip Service 138B

• 54009

  Ang Mo Kio Int
  Ang Mo Kio Ave 8
  NS16Ang Mo Kio
  AMK Hub →
  55121

  Opp Blk 604
  Ang Mo Kio Ave 5
  • Weekdays: 18:18, 18:30, 18:42, 18:54, 19:06, 19:19, 19:31, 19:43 & 19:56

Short-Trip Service 138C (from 8 Dec)

• 48131

  S'pore Zoo
  Mandai Lake Rd
  Mandai Zoo
  Mandai Night Safari
  Mandai River Wonders →
  56099

  Springleaf Stn Exit 2
  Upp Thomson Rd
  TE4Springleaf
  • Weekends/Public Holidays: 14:45 - 19:00

Loop Service

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[Show/Hide Full Route Details]

Bus Stops	Nearby Attraction	Weekdays		Saturdays		Suns/PH
		First bus	Last bus	First bus	Last bus	First bus	Last bus
54009 Ang Mo Kio Int Ang Mo Kio Ave 8	NS16Ang Mo Kio AMK Hub		05:34	01:14	05:35	01:15	05:35	01:15
54247 Blk 322 Ang Mo Kio Ave 3	AMK Hub		05:34	01:14	05:35	01:15	05:35	01:15
54031 Opp Al-Muttaqin Mque Ang Mo Kio Ave 6	Masjid Al-Muttaqin		05:34	01:14	05:35	01:15	05:35	01:15
54041 Opp Courts Ang Mo Kio Ang Mo Kio Ave 6	Ang Mo Kio Polyclinic		05:34	01:14	05:35	01:15	05:35	01:15
54051 Bef Ang Mo Kio Ave 5 Ang Mo Kio Ave 6			05:34	01:14	05:35	01:15	05:35	01:15
54469 Opp Blk 649 Ang Mo Kio Ave 5			05:34	01:14	05:35	01:15	05:35	01:15
54459 Blk 151 Ang Mo Kio Ave 5			05:34	01:14	05:35	01:15	05:35	01:15
55111 Blk 180 Ang Mo Kio Ave 5			05:34	01:14	05:35	01:15	05:35	01:15
55121 Opp Blk 604 Ang Mo Kio Ave 5			05:34	01:14	05:35	01:15	05:35	01:15
56209 Bef Thomson Hills Dr Yio Chu Kang Rd			05:34	01:14	05:35	01:15	05:35	01:15
56199 Aft Thomson Hills Dr Yio Chu Kang Rd			05:34	01:14	05:35	01:15	05:35	01:15
56041 Opp Meadows @ Peirce Upp Thomson Rd			05:34	01:14	05:35	01:15	05:35	01:15
56051 Opp Tagore Rd Upp Thomson Rd			05:34	01:14	05:35	01:15	05:35	01:15
56061 Aft Tagore Dr Upp Thomson Rd	Thomson Nature Park		05:34	01:14	05:35	01:15	05:35	01:15
56071 Bef Old Upp Thomson Rd Upp Thomson Rd			05:34	01:14	05:35	01:15	05:35	01:15
56081 Bef SLE Upp Thomson Rd			05:34	01:14	05:35	01:15	05:35	01:15
56091 Springleaf Stn Exit 3 Upp Thomson Rd	TE4Springleaf		05:34	01:14	05:35	01:15	05:35	01:15
57011 Opp Springleaf Nature Pk Upp Thomson Rd	Springleaf Nature Park		05:34	01:14	05:35	01:15	05:35	01:15
57149 Aft Upp Thomson Rd Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
48109 Opp Meng Suan Rd Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
48099 Opp SCDF Nee Soon Camp Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
48089 Upp Seletar Resvr Mandai Rd	Upper Seletar Reservoir		05:34	01:14	05:35	01:15	05:35	01:15
48079 Opp Mandai Crematorium Mandai Rd	Mandai Crematorium		05:34	01:14	05:35	01:15	05:35	01:15
48069 Aft Mandai Ave Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
48059 Opp Mandai Agrotech Pk Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
48049 Bef Jln Ulu Sembawang Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
48039 LP 159 Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
48029 Bef Mandai Lake Rd Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
48111 Opp Bird Paradise Mandai Lake Rd	Mandai Bird Paradise Mandai Rainforest Wild Asia		05:34	01:14	05:35	01:15	05:35	01:15
48131 S'pore Zoo Mandai Lake Rd	Mandai Zoo Mandai Night Safari Mandai River Wonders		05:34	01:14	05:35	01:15	05:35	01:15
48119 Bird Paradise Mandai Lake Rd	Mandai Bird Paradise Mandai Rainforest Wild Asia		05:34	01:14	05:35	01:15	05:35	01:15
48021 Aft Mandai Lake Rd Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
48031 LP 162 Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
48041 Aft Jln Ulu Sembawang Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
48051 Mandai Agrotech Pk Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
48061 Bef Mandai Ave Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
48071 Mandai Crematorium Mandai Rd	Mandai Crematorium		05:34	01:14	05:35	01:15	05:35	01:15
48081 Opp Upp Seletar Resvr Mandai Rd	Upper Seletar Reservoir		05:34	01:14	05:35	01:15	05:35	01:15
48091 SCDF Nee Soon Camp Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
48101 Aft Meng Suan Rd Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
57141 Bef Upp Thomson Rd Mandai Rd			05:34	01:14	05:35	01:15	05:35	01:15
57019 Springleaf Nature Pk Upp Thomson Rd	Springleaf Nature Park		05:34	01:14	05:35	01:15	05:35	01:15
56099 Springleaf Stn Exit 2 Upp Thomson Rd	TE4Springleaf		05:34	01:14	05:35	01:15	05:35	01:15
56089 Aft SLE Upp Thomson Rd			05:34	01:14	05:35	01:15	05:35	01:15
56079 Aft Old Upp Thomson Rd Upp Thomson Rd			05:34	01:14	05:35	01:15	05:35	01:15
56069 Bef Tagore Dr Upp Thomson Rd	Thomson Nature Park		05:34	01:14	05:35	01:15	05:35	01:15
56059 Bef Tagore Rd Upp Thomson Rd			05:34	01:14	05:35	01:15	05:35	01:15
56049 Meadows @ Peirce Upp Thomson Rd			05:34	01:14	05:35	01:15	05:35	01:15
56191 Teachers' Housing Est Yio Chu Kang Rd			05:34	01:14	05:35	01:15	05:35	01:15
56201 Aft Munshi Abdullah Ave Yio Chu Kang Rd			05:34	01:14	05:35	01:15	05:35	01:15
55129 Blk 604 Ang Mo Kio Ave 5			05:34	01:14	05:35	01:15	05:35	01:15
55119 Blk 617 Ang Mo Kio Ave 5			05:34	01:14	05:35	01:15	05:35	01:15
54451 Blk 643 Ang Mo Kio Ave 5			05:34	01:14	05:35	01:15	05:35	01:15
54461 Blk 649 Ang Mo Kio Ave 5			05:34	01:14	05:35	01:15	05:35	01:15
54059 Bef Ang Mo Kio Lib Ang Mo Kio Ave 6	Ang Mo Kio Public Library		05:34	01:14	05:35	01:15	05:35	01:15
54049 Courts Ang Mo Kio Ang Mo Kio Ave 6	Ang Mo Kio Polyclinic		05:34	01:14	05:35	01:15	05:35	01:15
54039 Bef Al-Muttaqin Mque Ang Mo Kio Ave 6	Masjid Al-Muttaqin		05:34	01:14	05:35	01:15	05:35	01:15
54241 Blk 700B Ang Mo Kio Ave 3	AMK Hub		05:34	01:14	05:35	01:15	05:35	01:15
54009 Ang Mo Kio Int Ang Mo Kio Ave 8	NS16Ang Mo Kio AMK Hub		05:34	01:14	05:35	01:15	05:35	01:15

Historical Information

Operator	Route	Year	Date	Service changes
(Current) Known as prior to 1 November 2001	Yio Chu Kang ↺ Mandai Lake Rd	1994	26 April	Introduced between Yio Chu Kang Ter and Mandai Lake Rd (Loop).
	Ang Mo Kio ↺ Mandai Lake Rd		1 October	Amended to Ang Mo Kio Int.
		1996	TBC	Serves new bus stop outside Jubilee along Ang Mo Kio Ave 8.
		1997	TBC	Serves new bus stop before Mandai Rd along Mandai Lake Rd.
		2002	24 March	Amended to Ang Mo Kio Temp Int and amended to ply Ang Mo Kio Ave 3 and Ang Mo Kio Ave 6.
	Ang Mo Kio ↺ Mandai Lake Rd	2007	28 April	Amended to Ang Mo Kio Integrated Transport Hub.
	138 Ang Mo Kio ↺ Mandai Lake Rd 138A Ang Mo Kio Int → Ang Mo Kio Ave 5	2009	22 June	138A Introduced from Ang Mo Kio Int to Ang Mo Kio Ave 5 (Opp Blk 604) during evening peak hours on weekdays.
	Ang Mo Kio ↺ Mandai Lake Rd		12 October	138A Discontinued.
		2011	26 September	Designated wheelchair-accessible bus service (WAB).
	138 Ang Mo Kio ↺ Mandai Lake Rd 138A Ang Mo Kio → Mandai Lake Rd	2012	1 December	138A Introduced from Ang Mo Kio Int to Mandai Lake Rd (Singapore Zoo) on Saturdays, Sundays and Public Holidays. Wheelchair-accessible at launch.
	138 Ang Mo Kio ↺ Mandai Lake Rd 138A Ang Mo Kio → Mandai Lake Rd 138B Ang Mo Kio → Ang Mo Kio Ave 5	2015	19 October	138B Introduced from Ang Mo Kio Int to Ang Mo Kio Ave 5 (Opp Blk 604) during evening peak hours on weekdays. Wheelchair-accessible at launch.
		2018	14 October	Skips a pair of removed bus stops before and after Singapore Zoo along Mandai Lake Rd.
		2024	14 October	138A Enhanced to operate from Upp Thomson Rd (Springleaf Stn Exit 3) to Mandai Lake Rd (Singapore Zoo) during weekday morning peak hours.
	138 Ang Mo Kio ↺ Mandai Lake Rd 138A Ang Mo Kio → Mandai Lake Rd 138B Ang Mo Kio → Ang Mo Kio Ave 5 138C Mandai Lake Rd → Upp Thomson Rd	2024	8 December	138C To be introduced from Mandai Lake Rd (Singapore Zoo) to Upper Thomson Rd (Springleaf Stn Exit 2) on weekends and public holidays, operating from 1445 hrs to 1900 hrs. Wheelchair-accessible at launch.