- 1 Service 185 bus - Duty 27S will perform one (1) crossover trip on Express 502 on Fridays.
- 2 Express 502 SDs will perform one (1) down-route trip as Express 502 from Orchard Road (Bus Stop 09169 - Delfi Orchard) towards Soon Lee Bus Park via Central Boulevard before & during Weekdays & Saturdays AM Peak.
- Weekdays: Departing at 0625 hours & 0646 hours.
- Saturdays: Departing at 0625 hours & 0641 hours.
- 3 Express 502 SDs will perform one (1) supplementary trip as Express 502A during Weekdays AM Peak.
- 3 Express 502 buses will perform one (1) down-route trip as Express 502 from Jurong West Avenue 1 (Bus Stop 28539 - Blk 538) towards Soon Lee Bus Park via Central Boulevard during Weekdays AM Peak.
- Mondays to Thursdays: Departing at 0745 hours, 0804 hours & 0825 hours.
- Fridays: Departing at 0745 hours, 0805 hours & 0825 hours.
- 3 Express 502 buses will perform one (1) down-route trip as Express 502 from Orchard Road (Bus Stop 09169 - Delfi Orchard) towards Soon Lee Bus Park via Central Boulevard during Fridays PM Off-Peak, departing at 2327 hours, 2343 hours & 0000 hours.
- 3 Express 502 buses will perform one (1) down-route trip as Express 502 from Orchard Road (Bus Stop 09169 - Delfi Orchard) towards Soon Lee Bus Park via Central Boulevard during Sundays & Public Holidays AM Peak, departing at 0715 hours, 0730 hours & 0745 hours.
- 4 Express 502 buses will perform one (1) down-route trip as Express 502 from Orchard Road (Bus Stop 09169 - Delfi Orchard) towards Soon Lee Bus Park via Central Boulevard during Sundays & Public Holidays PM Off-Peak, departing at 2321 hours, 2334 hours, 2347 hours & 0000 hours.
- 5 Express 502 buses will perform one (1) down-route trip as Express 502 from Orchard Road (Bus Stop 09169 - Delfi Orchard) towards Soon Lee Bus Park via Central Boulevard during Mondays to Thursdays PM Off-Peak, departing at 2245 hours, 2304 hours, 2328 hours, 2344 hours & 0000 hours.
- 6 Express 502 buses will perform one (1) down-route trip as Express 502 from Orchard Road (Bus Stop 09169 - Delfi Orchard) towards Soon Lee Bus Park via Central Boulevard during Saturdays PM Off-Peak, departing at 2303 hours, 2318 hours, 2328 hours, 2338 hours, 2349 hours & 0000 hours.
- SBS3151D, SBS6074Z & SBS8089T (Express 502) will perform down-route trips on Service 30 from Jalan Ahmad Ibrahim (Bus Stop 21021 - Bef Jurong Port Rd) towards Boon Lay Interchange during Weekdays AM Peak.
- This service operates on Special Weekdays schedule during service diversions along Temasek Boulevard/Avenue & Bayfront Avenue.
- Mondays-Thursdays: TBC (16 buses)
- Fridays: TBC (19 buses)
- Saturdays: 10A-16P / 1T (17 buses)
- Sundays: 7A-8P / 4T (12 buses)
- Special Weekdays: TBC (15 buses)
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