| 991B |
Choa Chu Kang - Choa Chu Kang Avenue 1 |
| 991B | SMRT Buses | |
|---|---|---|
| From Choa Chu Kang | ||
| First Bus | Last Bus | |
| Weekdays | 0018 | 0055 |
| Saturdays | 0018 | 0055 |
| Sundays & Public Holidays | 0018 | 0055 |
| Bus Service Frequency | |||
| Before 0830 | 0831 - 1659 | 1700 - 1900 | After 1900 |
| From Choa Chu Kang | |||
| - | - | - | 18-19 |
Related Bus Services
| 991 | Bukit Batok ⇔ Choa Chu Kang |
| 991A | Bukit Batok ➔ Bukit Batok West Avenue 3 |
| 991C | Choa Chu Kang Avenue 3 ➔ Bukit Gombak MRT |
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