Independent, citizen-led transit information for Ottawa–Gatineau riders. Not affiliated with OC Transpo or STO.
Route
277
OC Transpo
This page includes all 2 current versions of the route, including short trips and different destinations.
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Route check
How route 277 is doing
A plain-language summary of the strongest evidence we have. We say when the data cannot answer a question.
Bottom line
We need pickup-point evidence before rating this express route.
Confidence in this summary: High
Based on 2,853 arrivals over 19 weekdays, from 2026-07-29T18:45:47.010Z to 2026-08-28T18:45:47.010Z.
Updated Aug 28, 2026, 2:45 p.m.
Problems to fix
These are repeated patterns, not one bad day or an unverified rider report.
Problem times are not ranked because this service needs a purpose-specific test.
Official notices cannot be confirmed right now.
Problem places
We do not yet have enough route-by-stop history to name a recurring problem stop. Rider reports are used as leads, not proof.
The questions riders ask
- Cancelled trips right now
- Cannot confirm right now
- Trips that may not have shown up
- No confirmed count yet
- Late service
- Not enough evidence yet
- Long gaps or bunching
- No route-level result meets the evidence threshold yet. This does not mean gaps did not happen.
Checks trips starting at route endpoints in the next 4 hours. This is not a historical cancellation rate.
26 of 60 scheduled trips had no matching vehicle position over 5 days. The feed covered 56.7%. These are cases to investigate—not confirmed no-shows.
How this route is judged: Express / commuter route
Inbound performance must be checked at pickup points. Early outbound running after pickups are finished is not treated like early service on a regular route.
What this data cannot prove
The public feed does not provide dependable passenger counts or passed-up-rider events. A missing position does not by itself prove a cancellation, no-show, short turn or cause.
See the definitions, thresholds and evidence order
- Official current feed: explicit cancellations, skipped stops and active notices.
- Matched observations: vehicle positions and settled predictions tied to the official schedule.
- Official timetable: what was planned, kept separate from what was observed.
- Rider and operator reports: leads about routes, times and places to investigate—not numeric proof by themselves.
Live route map
Where the buses are now
Fresh vehicle positions appear on the route below. A marker stops moving when the evidence runs out—we do not invent movement.
Route and live buses
The line is the official route. Dots show published stops, buses seen now and stops named in current notices.
0 official shapes · 50 stops · 0 vehicle markers
Loading official route geometry · Loading current vehicles
Markers move between GPS fixes using measured progress along the published route. They pause after one measured reporting interval, on a measured standstill, or when evidence becomes stale.
Today’s schedule
Service date August 28, 2026
- Towards Tunney's Pasture
- 6 scheduled trips
- 5:55 a.m.–9:29 a.m.
- 30 min median scheduled gap
- Towards Nepean Woods
- 6 scheduled trips
- 2:58 p.m.–6:49 p.m.
- 31 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 trips from the ends of the route
These are trip starts. For the time at your stop, open that stop’s departure board.
Towards Nepean Woods
Starts at TUNNEY'S PASTURE G
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.
Buses seen now
Current vehicle positions cannot be confirmed. No zero is shown.
Official notices
The operator notice feed is unavailable or stale, so no all-clear is claimed.
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 28, 5:14 p.m.
Check the numbers
Data behind this result
This route has more than one official schedule record. We keep each record separate so the totals stay checkable and we do not invent a combined worst-case result.
Open any result below to see the hours, denominators, observed days, and position coverage behind it.
Observed evidence cohort 277
Provisional results, published evidence
When is this route reliable?
Every hour below is backed by this route’s settled arrivals. “On time” means no more than five minutes early or late, so a bus that leaves very early counts as a failure for the waiting rider.
Evidence window: July 29, 2026 to August 28, 2026
- 82.1%
- Within ±5 min
- 2,853
- Settled arrivals
- 19
- Observed weekdays
- 29 min late
- How late the worst 5 in 100 were
Patterns by hour (6)
| Hour | On time | Median | Worst 5 in 100 | Evidence |
|---|---|---|---|---|
| 06:00 | 65.2% | 2.4 min late | 33.2 min late | 135 · 7 days |
| 07:00 | 54.7% | 1.6 min late | 37 min late | 181 · 7 days |
| 08:00 | 88.0% | 1.2 min late | 5.1 min late | 92 · 2 days |
| 15:00 | 100.0% | 0.4 min early | 3.8 min late | 30 · 2 days |
| 16:00 | 63.8% | 1.6 min early | 2.8 min late | 58 · 2 days |
| 17:00 | 52.6% | 1.4 min late | 9.5 min late | 38 · 1 days |
2 hourly block(s) are below 70% across at least three service days: a repeated pattern, not one bad day.
Scheduled bus, but not observed in realtime
34 / 60 scheduled trips published at least one position across 5 service days (56.7%).
- 16:006 / 10 trips without a position40.0%
- 17:003 / 5 trips without a position40.0%
- 05:002 / 5 trips without a position60.0%
- 06:004 / 10 trips without a position60.0%
- 07:004 / 10 trips without a position60.0%
- 08:002 / 5 trips without a position60.0%
This is not a confirmed no-show. A missing position can mean a cancelled or missed bus, but it can also mean an unassigned trip ID or an operator-feed gap. Otranspo publishes the gap because it matters to riders while keeping the conclusion honest.
Method: last prediction within ten minutes of each arrival; one arrival per trip, stop and service date. Trip coverage: GTFS schedule compared with any GTFS-RT position carrying the same trip and local service date. Sources and limitations.
See all stops and route patterns
Stops and stations
2 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 Tunney's Pasture: NEPEAN WOODS A to TUNNEY'S PASTURE C
29 stops · 96 imported trips
Scheduled from Aug 14, 2026 to Sep 20, 2026
Published weekly days: Monday, Tuesday, Wednesday, Thursday, Friday
16 official service records
6 added dates and 14 removed dates
- View stops and calendar →
Towards Nepean Woods: TUNNEY'S PASTURE G to NEPEAN WOODS B
21 stops · 101 imported trips
Scheduled from Aug 14, 2026 to Sep 20, 2026
Published weekly days: Monday, Tuesday, Wednesday, Thursday, Friday
16 official service records
6 added dates and 14 removed dates
The stop patterns are available, but this environment cannot name the imported feed version.
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
- Computed or assembled
- Sample
- 2,853 settled arrivals across 1 matching reliability records.
- Coverage
- 2 published stop patterns containing 50 stop calls are available on this page.
- Method or data version
- last-prediction-within-ten-minutes-v1
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.