Independent, citizen-led transit information for Ottawa–Gatineau riders. Not affiliated with OC Transpo or STO.
Route
42
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 Blair
- 30 scheduled trips
- 5:20 a.m.–9:27 p.m.
- 30 min median scheduled gap
- Towards Hurdman
- 32 scheduled trips
- 5:40 a.m.–10:00 p.m.
- 30 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 Blair
Starts at HURDMAN D
Timetable only. No usable prediction is available for this trip.
Towards Hurdman
Starts at BLAIR G
Timetable only. No usable prediction is available for this trip.
Towards Blair
Starts at HURDMAN D
Timetable only. No usable prediction is available for this trip.
Towards Hurdman
Starts at BLAIR G
Timetable only. No usable prediction is available for this trip.
Towards Blair
Starts at HURDMAN D
Timetable only. No usable prediction is available for this trip.
Towards Hurdman
Starts at BLAIR G
Timetable only. No usable prediction is available for this trip.
Towards Blair
Starts at HURDMAN D
Timetable only. No usable prediction is available for this trip.
Towards Hurdman
Starts at BLAIR G
Timetable only. No usable prediction is available for this trip.
Towards Blair
Starts at HURDMAN D
Timetable only. No usable prediction is available for this trip.
Towards Hurdman
Starts at BLAIR G
Timetable only. No usable prediction is available for this trip.
Towards Hurdman
Starts at BLAIR 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.
Vehicles observed now
Current vehicle positions cannot be confirmed. No zero is shown.
Active official notices
Detour: Routes 19, 42, 44, 48 during Terminal Avenue bridge closure
Timing not published by the operatorJuly 29 2026 - From 7:00 am on Monday, August 3, until 11:59 pm on Saturday, August 29, Terminal Avenue will be closed between Sandford Fleming Avenue and Terminal Avenue South for bridge work and rehabilitation. Routes 19, 42, 44, and 48 will detour in both directions around the closure before continuing on their regular routes. Please allow extra time for your travels. Affected stops Bus Stop (560#) affected Routes Alternate Stop #1801 -- Terminal (north-side) / Sandford Fleming 19 Hurdman 42 Hurdman #5793 -- Sandford Fleming (west-side) / Industrial #1801 -- Terminal (north-side) / Sandford Fleming 44 Hurdman 48 Hurdman TEMP -- Industrial (north-side) / Alta Vista #1802 -- Terminal (south-side) / Sandford Fleming 44 Billings Bridge 48 Carleton TEMP -- Industrial (south-side) / Alta Vista #8552 -- Sandford Fleming (east-side) / Industrial 44 Hurdman 48 Hurdman TEMP -- Industrial (north-side) / Alta Vista #5793 -- Sandford Fleming (west-side) / Industrial 44 Billings Bridge 48 Carleton TEMP -- Industrial (south-side) / Alta Vista Detour routing 19 Hurdman: From Terminal at Sandford Fleming, left onto Sandford Fleming, use stop #5793 -- Sandford Fleming (west-side) / Industrial , right onto Industrial, continue across Riverside, left onto Terminal, continue Transitway to regular route. 19 Parliament: From Hurdman Station, continue Transitway, right onto Terminal, continue Industrial, left onto Sandford Fleming, use stop #8552 -- Sandford Fleming (east-side) / Industrial , right onto Terminal to regular route. 42 Hurdman: From Terminal at Sandford Fleming, left onto Sandford Fleming, use stop #5793 -- Sandford Fleming (west-side) / Industrial , right onto Industrial, continue across Riverside, left onto Terminal, continue Transitway to regular route. 42 Blair: From Hurdman Station, continue Transitway, right onto Terminal, continue Industrial, left onto Sandford Fleming, use stop #8552 -- Sandford Fleming (east-side) / Industrial , right onto Terminal to regular route. 44 Hurdman: From Alta Vista, left onto Industrial, (service temp stop on north side of Industrial) continue across Riverside, left onto Terminal, continue Transitway to regular route. 44 Billings Bridge: From Hurdman Station, continue Transitway, right onto Terminal, continue Industrial, (service temp stop on south side of Industrial) right onto Alta Vista to regular route. 48 Hurdman: From Alta Vista, left onto Industrial, (service temp stop on north side of Industrial) continue across Riverside, left onto Terminal, continue Transitway to regular route. 48 Carleton: From Hurdman Station, continue Transitway, right onto Terminal, continue Industrial, (service temp stop on south side of Industrial) continue Industrial to regular route. Detour map
Read notice →
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, 6:42 p.m.
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 Blair: HURDMAN D to BLAIR C
36 stops · 691 imported trips
Scheduled from Aug 14, 2026 to Sep 20, 2026
Published weekly days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
25 official service records
10 added dates and 30 removed dates
- View stops and calendar →
Towards Hurdman: BLAIR G to HURDMAN B
36 stops · 706 imported trips
Scheduled from Aug 14, 2026 to Sep 20, 2026
Published weekly days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
25 official service records
10 added dates and 30 removed dates
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.
Observed evidence cohort 42
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 28, 2026 to August 27, 2026
- 69.6%
- Within ±5 min
- 27,252
- Settled arrivals
- 21
- Observed weekdays
- 14.1 min late
- 95th percentile
Patterns by hour (0)
Not enough arrivals yet to split this route by hour.
No repeated pattern below 70% is yet established across at least three service days.
Scheduled bus, but not observed in realtime
Schedule-to-position comparison is not available for this route yet.
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.
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
- Computed or assembled
- Sample
- 27,252 settled arrivals across 1 matching reliability records.
- Coverage
- 2 published stop patterns containing 72 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.