Independent, citizen-led transit information for Ottawa–Gatineau riders. Not affiliated with OC Transpo or STO.
Route
4
OC Transpo
2 official schedule records are grouped under this public route. Destinations and stop patterns from every current record are included below.
Current route evidence
What is happening on this route
Timetable, vehicle and notice evidence are kept separate so a missing live feed is never presented as no service.
Route map
Explore opens every official schedule record grouped under this public route. The map follows published street geometry where the current GTFS provides it.
Today’s scheduled service
Service date August 27, 2026
- Towards South Keys
- 92 scheduled trips
- 6:07 a.m.–12:23 a.m. (next day)
- 12 min median scheduled gap
- Towards Airport ~ Aéroport
- 92 scheduled trips
- 6:08 a.m.–12:20 a.m. (next day)
- 12 min median scheduled gap
Span and median gap are computed from today’s official GTFS stop_times. They are timetable measures, not observed headways or a frequency guarantee.
Next departures from route origins
These are upcoming trip starts, not departures from every stop. Open a stop below for its own board.
Towards Airport ~ Aéroport
Starts at SOUTH KEYS O-TRAIN SOUTH / SUD
Timetable only. No usable prediction is available for this trip.
Towards South Keys
Starts at AIRPORT O-TRAIN NORTH / AÉROPORT O-TRAIN NORD
Timetable only. No usable prediction is available for this trip.
Towards South Keys
Starts at AIRPORT O-TRAIN NORTH / AÉROPORT O-TRAIN NORD
Timetable only. No usable prediction is available for this trip.
Towards Airport ~ Aéroport
Starts at SOUTH KEYS O-TRAIN SOUTH / SUD
Timetable only. No usable prediction is available for this trip.
Towards South Keys
Starts at AIRPORT O-TRAIN NORTH / AÉROPORT O-TRAIN NORD
Timetable only. No usable prediction is available for this trip.
Towards Airport ~ Aéroport
Starts at SOUTH KEYS O-TRAIN SOUTH / SUD
Timetable only. No usable prediction is available for this trip.
Towards Airport ~ Aéroport
Starts at SOUTH KEYS O-TRAIN SOUTH / SUD
Timetable only. No usable prediction is available for this trip.
Towards South Keys
Starts at AIRPORT O-TRAIN NORTH / AÉROPORT O-TRAIN NORD
Timetable only. No usable prediction is available for this trip.
Towards South Keys
Starts at AIRPORT O-TRAIN NORTH / AÉROPORT O-TRAIN NORD
Timetable only. No usable prediction is available for this trip.
Towards Airport ~ Aéroport
Starts at SOUTH KEYS O-TRAIN SOUTH / SUD
Timetable only. No usable prediction is available for this trip.
Towards South Keys
Starts at AIRPORT O-TRAIN NORTH / AÉROPORT O-TRAIN NORD
Timetable only. No usable prediction is available for this trip.
Towards Airport ~ Aéroport
Starts at SOUTH KEYS O-TRAIN SOUTH / SUD
Timetable only. No usable prediction is available for this trip.
The realtime prediction feed is unavailable or stale. Timetable times remain labelled as scheduled only.
Vehicles observed now
Current vehicle positions cannot be confirmed. No zero is shown.
Active official notices
No matching active notice appears in the current healthy operator feed.
Planned changes
No safely matched planned change is recorded for this route.
These are Otranspo register records, separate from operator alerts. A record is attached only when its route label identifies one operator; ambiguous OC Transpo/STO number matches are withheld.
Evidence checked Aug 27, 6:43 p.m.
Stops and stations
4 official stop patterns
Each row below is one exact stop order published in the official schedule. Short turns and alternate destinations stay separate.
- View stops and calendar →
Towards South Keys: AIRPORT O-TRAIN NORTH / AÉROPORT O-TRAIN NORD to SOUTH KEYS O-TRAIN NORTH / NORD
3 stops · 434 imported trips
Scheduled from Aug 14, 2026 to Sep 20, 2026
Published weekly days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
6 official service records
1 added date and 1 removed date
- View stops and calendar →
Towards South Keys: UPLANDS O-TRAIN NORTH / NORD to SOUTH KEYS O-TRAIN NORTH / NORD
2 stops · 6 imported trips
Scheduled from Aug 14, 2026 to Sep 20, 2026
Published weekly days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
6 official service records
1 added date and 1 removed date
- View stops and calendar →
Towards Airport ~ Aéroport: SOUTH KEYS O-TRAIN SOUTH / SUD to AIRPORT O-TRAIN NORTH / AÉROPORT O-TRAIN NORD
3 stops · 432 imported trips
Scheduled from Aug 14, 2026 to Sep 20, 2026
Published weekly days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
6 official service records
1 added date and 1 removed date
- View stops and calendar →
Towards Airport ~ Aéroport: UPLANDS O-TRAIN SOUTH / SUD to AIRPORT O-TRAIN NORTH / AÉROPORT O-TRAIN NORD
2 stops · 4 imported trips
Scheduled from Aug 14, 2026 to Sep 20, 2026
Published weekly days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
4 official service records
1 added date and 1 removed date
Official feed version 6a5cf745-35f3-4cac-aa4d-35b6661335fe
Source checksum 93bdaf6ee5d5ca7fd25a8c81319668a8489f2d9c86433718618d79c61c38bba2
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Reliability evidence by published route cohort
This public route groups more than one official schedule record. Percentiles and observed weekday sets cannot be safely merged from published aggregates, so each matching evidence cohort remains separate.
No reliability cohort can be safely matched to this public route. No representative schedule record is substituted.
Evidence behind this pageOpen the definition, method, sources, dates, coverage, and known limits.
What is being shown
The current public route group, its published schedule variants and stop patterns, current operations, and matching observed reliability where available.
How it was produced
2 current GTFS route record variants are grouped by operator and public route number. Stop patterns remain tied to their published variant; aggregated reliability records are not merged into an invented percentile.
Evidence dates
- Collected or observed
- Sample
- No matching settled-arrival reliability sample is currently published for this public route.
- Coverage
- 4 published stop patterns containing 10 stop calls are available on this page.
- Method or data version
- last-prediction-within-ten-minutes-v1; 6a5cf745-35f3-4cac-aa4d-35b6661335fe; 93bdaf6ee5d5ca7fd25a8c81319668a8489f2d9c86433718618d79c61c38bba2
Sources
Limits to keep in mind
- Schedule variants can apply on different dates. A grouped route is not a claim that every pattern operates today.
- Accessibility fields report only what the operator publishes; an unknown value is not confirmation of access.
Rider evidence
Community reports
Signals below are moderated community aggregates, not official operator notices or reliability scores.
You can report without signing in. Anonymous reports count a little less when we calculate public patterns. You can add an account after submitting.
Report a specific problem
Emergency: call 9-1-1. Check official OC Transpo or STO notices before travelling.
Source: currently imported OC Transpo GTFS. Check the Alerts panel for current official notices and each stop page for observed departures.