STO Route 831: SECTEUR MONT-BLEU/DE L'ÎLE

Route 831 right now

Running: No positions observed; 9:54 a.m.
Cancelled trips now: None reported
Service alerts: 0 confirmed current notices

Where will you board?

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Route patternFind a stop in this pattern

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All stops and patterns

Toward É de l'Île · CEGEP GABRIELLE-ROY to arrivée école secondaire de l'île

Route and live buses

Service date: October 8, 2026

0 official shapes · 53 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.

Open the full-screen map

The line is the official route. Dots show published stops, buses seen now and stops named in current notices.

Where the buses are now

Buses we can see right now appear on the route below. A marker stops when we stop hearing from that bus. We never make up movement.

Service date: October 8, 2026
Official notices: No matching current notice in a healthy feed
Current buses: Cannot be confirmed from the current feed

Today’s schedule

Service date October 8, 2026

Towards É de l'Île: 2 scheduled trips
3:20 p.m.–3:46 p.m.: Scheduled gap unavailable because fewer than two distinct trips start
Towards É de l'Île: 2 scheduled trips
7:50 a.m.–8:20 a.m.: 2 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.

No upcoming trip start is published in the next four hours.

Buses seen now

The current healthy operator position feed contains no vehicle matched to this route.

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 Oct 8, 9:56 a.m.

Explore the route

Choose a destination, then select a stop on the map or route diagram.

2 official stop patterns

0 verified representative shapes · 53 stops

Dashed lines connect the published stop order; they are not claimed street paths

Map source and limits

A solid line matches one published representative trip whose stops and order were checked. Another trip with the same stops may follow a different shape. Dashed lines connect published stops only; they do not describe streets.

This view does not show live vehicle positions.

Open the full-screen map

All published paths

Where does it go?

Different journeys can take different branches. Choose a published path above to see its stops in order.

You can also select any stop on the map to open its departure board.

É de l'Île1 official stop pattern

Published stop order does not prove that a vehicle is running now.

Schedule and source records

Départ école secondaire de l'île to CEGEP GABRIELLE-ROY/arrivée · 26 stops

Scheduled from Sep 28, 2026 to Nov 20, 2026

This service is published only as specific added dates, not as a weekly calendar.

3 official service records

39 added dates and 0 removed dates

Open this scheduled trip progression

Review the official service records

Service sto:H01S926S-Semaine-0-_26AUT-1111100-
sto:831
This service is published only as specific added dates, not as a weekly calendar.
Added dates: Sep 28, 2026, Sep 29, 2026, Oct 1, 2026, Oct 5, 2026, Oct 6, 2026, Oct 7, 2026, Oct 8, 2026, Oct 9, 2026, Oct 13, 2026, Oct 14, 2026, Oct 15, 2026, Oct 19, 2026, Oct 20, 2026, Oct 21, 2026, Oct 22, 2026, Oct 23, 2026, Oct 26, 2026, Oct 27, 2026, Oct 28, 2026, Oct 29, 2026, Oct 30, 2026, Nov 2, 2026, Nov 3, 2026, Nov 4, 2026, Nov 5, 2026, Nov 6, 2026, Nov 9, 2026, Nov 10, 2026, Nov 11, 2026, Nov 12, 2026, Nov 13, 2026, Nov 16, 2026, Nov 17, 2026, Nov 18, 2026, Nov 19, 2026, Nov 20, 2026
Service sto:H01S926S-Semaine-10-_26AUT-1111100-
sto:831
This service is published only as specific added dates, not as a weekly calendar.
Added dates: Sep 30, 2026
Service sto:H01S926S-Semaine-11-_26AUT-1111100-
sto:831
This service is published only as specific added dates, not as a weekly calendar.
Added dates: Oct 2, 2026, Oct 16, 2026

Service records for this stop pattern

Service sto:H01S926S-Semaine-0-_26AUT-1111100-
sto:831
This service is published only as specific added dates, not as a weekly calendar.
Added dates: Sep 28, 2026, Sep 29, 2026, Oct 1, 2026, Oct 5, 2026, Oct 6, 2026, Oct 7, 2026, Oct 8, 2026, Oct 9, 2026, Oct 13, 2026, Oct 14, 2026, Oct 15, 2026, Oct 19, 2026, Oct 20, 2026, Oct 21, 2026, Oct 22, 2026, Oct 23, 2026, Oct 26, 2026, Oct 27, 2026, Oct 28, 2026, Oct 29, 2026, Oct 30, 2026, Nov 2, 2026, Nov 3, 2026, Nov 4, 2026, Nov 5, 2026, Nov 6, 2026, Nov 9, 2026, Nov 10, 2026, Nov 11, 2026, Nov 12, 2026, Nov 13, 2026, Nov 16, 2026, Nov 17, 2026, Nov 18, 2026, Nov 19, 2026, Nov 20, 2026
Service sto:H01S926S-Semaine-10-_26AUT-1111100-
sto:831
This service is published only as specific added dates, not as a weekly calendar.
Added dates: Sep 30, 2026
Service sto:H01S926S-Semaine-11-_26AUT-1111100-
sto:831
This service is published only as specific added dates, not as a weekly calendar.
Added dates: Oct 2, 2026, Oct 16, 2026

CEGEP GABRIELLE-ROY to arrivée école secondaire de l'île · 27 stops

Scheduled from Sep 28, 2026 to Nov 20, 2026

This service is published only as specific added dates, not as a weekly calendar.

3 official service records

39 added dates and 0 removed dates

Open this scheduled trip progression

Review the official service records

Service sto:H01S926S-Semaine-0-_26AUT-1111100-
sto:831
This service is published only as specific added dates, not as a weekly calendar.
Added dates: Sep 28, 2026, Sep 29, 2026, Oct 1, 2026, Oct 5, 2026, Oct 6, 2026, Oct 7, 2026, Oct 8, 2026, Oct 9, 2026, Oct 13, 2026, Oct 14, 2026, Oct 15, 2026, Oct 19, 2026, Oct 20, 2026, Oct 21, 2026, Oct 22, 2026, Oct 23, 2026, Oct 26, 2026, Oct 27, 2026, Oct 28, 2026, Oct 29, 2026, Oct 30, 2026, Nov 2, 2026, Nov 3, 2026, Nov 4, 2026, Nov 5, 2026, Nov 6, 2026, Nov 9, 2026, Nov 10, 2026, Nov 11, 2026, Nov 12, 2026, Nov 13, 2026, Nov 16, 2026, Nov 17, 2026, Nov 18, 2026, Nov 19, 2026, Nov 20, 2026
Service sto:H01S926S-Semaine-10-_26AUT-1111100-
sto:831
This service is published only as specific added dates, not as a weekly calendar.
Added dates: Sep 30, 2026
Service sto:H01S926S-Semaine-11-_26AUT-1111100-
sto:831
This service is published only as specific added dates, not as a weekly calendar.
Added dates: Oct 2, 2026, Oct 16, 2026

Service records for this stop pattern

Service sto:H01S926S-Semaine-0-_26AUT-1111100-
sto:831
This service is published only as specific added dates, not as a weekly calendar.
Added dates: Sep 28, 2026, Sep 29, 2026, Oct 1, 2026, Oct 5, 2026, Oct 6, 2026, Oct 7, 2026, Oct 8, 2026, Oct 9, 2026, Oct 13, 2026, Oct 14, 2026, Oct 15, 2026, Oct 19, 2026, Oct 20, 2026, Oct 21, 2026, Oct 22, 2026, Oct 23, 2026, Oct 26, 2026, Oct 27, 2026, Oct 28, 2026, Oct 29, 2026, Oct 30, 2026, Nov 2, 2026, Nov 3, 2026, Nov 4, 2026, Nov 5, 2026, Nov 6, 2026, Nov 9, 2026, Nov 10, 2026, Nov 11, 2026, Nov 12, 2026, Nov 13, 2026, Nov 16, 2026, Nov 17, 2026, Nov 18, 2026, Nov 19, 2026, Nov 20, 2026
Service sto:H01S926S-Semaine-10-_26AUT-1111100-
sto:831
This service is published only as specific added dates, not as a weekly calendar.
Added dates: Sep 30, 2026
Service sto:H01S926S-Semaine-11-_26AUT-1111100-
sto:831
This service is published only as specific added dates, not as a weekly calendar.
Added dates: Oct 2, 2026, Oct 16, 2026

Official feed version ca455c71-c30a-4e4d-8b72-2709212731cd

Source checksum a7e1f22955084828484cca5e8f1ebff9e785c70984ad5dd93b872a5d64ace6e4

Schedule and accessibility details

Current service date: Oct 8, 2026
Selected direction: Every published direction
Imported schedule valid through: Nov 22, 2026

Some imported trips are marked accessible and others are not or are unstated; verify each departure.

Scheduled service and available evidence

Did the scheduled service run?

Open dated evidence

Evidence period: Oct 1, 2026 – Oct 7, 2026

Scheduled trips with cancellation notices

—

No retained notice returned; this does not prove zero cancellations. 1 partial-capture day not counted.

Trips needing investigation

0

0 of 16 trips with a usable feed window (0%) had no matching position.

These counts may overlap; do not add them. A missing position confirms neither cancellation nor a no-show.

16 with position · 0 to investigate · 4 excluded · 20 scheduled trips

Current feed. No explicit notice for this route in the current feed; this does not guarantee service. Observed: Oct 8, 2026, 9:55 a.m..

Coverage, exclusions and sources

4 scheduled trips were excluded from the position check for feed or identity gaps.

Published position coverage: 16 / 20 (80%). This is not a delivered-service rate. 7 service days in this source.

Timetables retained before the service day: 7 / 7 requested days · 0 missing days.

Historical calculation: Oct 8, 2026, 8:48 a.m.

Method: explicit provider notices, archived trip windows and retained timetables. Predictions and positions alone do not prove that a bus ran or was missed.

Cancellations on this route

What these words mean →

1 partial-capture day not counted.

4 scheduled trips with counted cancellation notices from Thu, Sep 10 to Wed, Oct 7.

Not counted: 0 trips with qualifying later matching vehicle observations and 0 for trips not in that day’s timetable.

Hours with the most cancellations: 7 a.m. (2), 3 p.m. (2)

Latest cancelled trips

Fri, Sep 18, scheduled 15:20
Fri, Sep 18, scheduled 15:20
Fri, Sep 18, scheduled 07:52
Fri, Sep 18, scheduled 07:50

A cause is shown only when STO’s own alert for that trip gives one.

Did not come (no bus seen, no notice), last 7 days: none of the trips we could check.

Buses arriving bunched

Bunching and slow spots on every route →

Not measured yet. The daily count has not reached these days, so there is no number to show.

When this route is usually busy

From the load level STO’s buses report, over the last eight weeks. A time is marked usually busy when at least half of the trips with a reading reached standing room or fuller.

When this route is usually busy	Weekdays	Saturdays	Sundays
Before 6 am	Not enough readings	Not enough readings	Not enough readings
6 to 9 am	Usually seats29.4% of 34 trips	Not enough readings	Not enough readings
9 am to 3 pm	Not enough readings	Not enough readings	Not enough readings
3 to 6 pm	Usually busy73% of 37 trips	Not enough readings	Not enough readings
6 to 10 pm	Not enough readings	Not enough readings	Not enough readings
After 10 pm	Not enough readings	Not enough readings	Not enough readings

Based on 56 computed days.

Source: the occupancy status in STO’s public real-time vehicle feed, which STO sets from each bus’s load sensor (seats available under 60% full, standing room under 90%, full above 90%).
Each trip counts once per time of day, at the highest load it reported.
Reports of an empty bus are left out, because older records could not tell an empty bus from one with no sensor.
A time of day needs at least 12 trips on at least 4 different days before anything is shown. Holidays are counted with their day of the week.

What does the evidence show?

Predictions against the timetable

No comparable percentage published

This service purpose needs a different method. A general percentage could give a misleading picture.

These are provider predictions, not independently measured arrivals. Missing evidence is not counted as on-time service.

Predictions in the source: 1,960
Weekdays with evidence: 19
Evidence window: Sep 9, 2026 – Oct 7, 2026

Calculated: Oct 8, 2026

1 partial-capture day not counted.

Explore the dated evidence Source of this result

What about time of day?

The general hourly comparison is not suitable for this service purpose. Source records remain available.

Improvement or decline requires comparable periods. This single result cannot establish a trend.

Open history, reliability and route analysis

Route check

How route 831 has been running

A short summary of what we know. We say so when we cannot answer a question.

Bottom line

We need to confirm how this service is meant to work before rating it.

Prediction sample size: Larger sample

Based on 1,960 eligible provider predictions over 19 measured days, from Sep 9, 2026 to Oct 7, 2026.

Updated Oct 8, 2026, 9:32 a.m.

Where and when did predictions differ repeatedly?

These are repeated prediction-to-timetable differences, not independently measured service failures. They use the same eligible predictions as the result above, but group by stop rather than hour, so the lists need not match line for line.

Problem times are not ranked because this service needs a purpose-specific test.

No current official notice matches this route.

Prediction differences by stop

We do not yet have enough route-by-stop history to name a recurring problem stop. Rider reports are used as leads, not proof.

Check every trip and date

Open a time period to see each service day, scheduled trip, feed gap, observed public vehicle ID, and the exact counts behind this summary.

What riders want to know

Is any trip cancelled right now?: No trips start in the next 4 hoursChecks trips starting at route endpoints in the next 4 hours. This is not a historical cancellation rate.
Possible no-shows after checking feed gaps?: 0 of 16 checked trips need a closer look0 of 16 trips with enough public-feed evidence had no matching position over 7 days. 4 of 20 scheduled trips were excluded because the feed record was incomplete. These are cases to investigate, not confirmed no-shows.
How did provider predictions differ from the timetable?: Not enough evidence yet
What wait did provider predictions imply?: No route-level result meets the evidence threshold yet. This does not mean gaps did not happen.

Schedule change check

Published schedule: before and after

This compares the current retained official schedule with the prior retained version. Schedule changes are facts about what was planned; they do not prove that a trip ran.

Current published schedule began September 27, 2026

Selected service day from each published schedule

We check the first Monday after the new schedule began and the Monday one week earlier. Every figure comes from the retained official GTFS versions named below.

At least one selected date uses added or removed calendar-date service. Treat this as holiday or special-service context, not ordinary weekday growth.

Before

Service date checked: September 21, 2026

Scheduled trips: 0
Distinct scheduled stops: 0
Distinct published paths: 0
Published service span: —–—

Feed fingerprint: a1fd9699f40664cc · 1a4ea4f3-91a8-43db-8c05-e3b01b5bf24c

New schedule

Service date checked: September 28, 2026

Scheduled trips: 4
Distinct scheduled stops: 53
Distinct published paths: 2
Published service span: 7:50 a.m.–3:46 p.m.

Operator calendar-date records: 1 added · 0 removed

Feed fingerprint: a7e1f22955084828 · ca455c71-c30a-4e4d-8b72-2709212731cd

Did service improve after the change?

We will compare settled arrivals for the 14 days before and after the change. We publish the comparison only after both sides have at least 7 service days and 200 arrivals.

Ordinary on-time scoring does not fit this route’s service purpose. The schedule counts remain visible, but the result waits for the purpose-specific evidence described below.

Checksums let anyone verify which retained timetable produced the counts. A changed count does not identify a cause, cancellation, operator decision, or passenger impact.

How this route is judged: School route

No grade is shown until a purpose-specific completion and pickup measure is available.

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.

Provisional results, published evidence

Data behind this result

An ordinary on-time grade is not appropriate for this service without checking its purpose. The route check above explains the pickup, community-service or event evidence needed. You can still inspect the recorded trips and data gaps below.

Evidence window: September 9, 2026 to October 7, 2026

Eligible predictions checked: 1,960
Weekdays with data: 19

Scheduled bus, but not observed in realtime

16 / 16 scheduled trips published at least one position across 4 service days (100.0%).

07:000 / 8 trips without a position100.0%
15:000 / 8 trips without a position100.0%

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.

Prediction check: the last eligible provider prediction no earlier than ten minutes before the scheduled arrival, counted once per trip, stop and scheduled Toronto calendar date. It is compared with the timetable, not an independently measured arrival. Trip-position check: the timetable kept before each service day, matched to recorded positions. Exact IDs are preferred; an OC timetable suffix is matched only to one trip on the same route and date with an overlapping time window. Missing timetables, ambiguous matches and feed gaps stay labelled; they are not confirmed no-shows. Sources and limitations.

Dated service

Trips scheduled that day

The timetable, notices and what the live feed says are shown apart. Seeing a bus on the map does not prove you can board it.

Service day

October 7, 2026 October 6, 2026 October 5, 2026 October 4, 2026 October 3, 2026 October 2, 2026 October 1, 2026

October 7, 2026 · 4 trips in the retained timetable · retained notices; capture coverage unverified

In short: 4 with a matched position · 0 with no matching position (to investigate) · 0 with an unknown outcome.

07:50– 08:18
Trip sto:62731930Vehicle position matchedFirst / last feed position: 7:39 a.m. EDT / 8:15 a.m. EDT; not actual start or end times.
07:52– 08:20
Trip sto:62731931Vehicle position matchedFirst / last feed position: 7:43 a.m. EDT / 8:14 a.m. EDT; not actual start or end times.
15:20– 15:46
Trip sto:62731932Vehicle position matchedFirst / last feed position: 3:12 p.m. EDT / 3:41 p.m. EDT; not actual start or end times.
15:20– 15:46
Trip sto:62731933Vehicle position matchedFirst / last feed position: 3:07 p.m. EDT / 3:48 p.m. EDT; not actual start or end times.

Loading the route history. Live times above are ready to use.

Ride now

Route 831 right now

Where will you board?

Toward É de l'Île · Départ école secondaire de l'île to CEGEP GABRIELLE-ROY/arrivée

Toward É de l'Île · CEGEP GABRIELLE-ROY to arrivée école secondaire de l'île

Stops and map

Explore the route

Where does it go?

Départ école secondaire de l'île to CEGEP GABRIELLE-ROY/arrivée · 26 stops

Service records for this stop pattern

CEGEP GABRIELLE-ROY to arrivée école secondaire de l'île · 27 stops

Service records for this stop pattern

Performance

Did the scheduled service run?

Scheduled trips with cancellation notices

Trips needing investigation

Cancellations on this route

Latest cancelled trips

Buses arriving bunched

When this route is usually busy

What does the evidence show?

What about time of day?

Where and when did predictions differ repeatedly?

Check every trip and date

What riders want to know

Selected service day from each published schedule

Before

New schedule

Did service improve after the change?

Data behind this result

Trips scheduled that day

Share this page

What is being shown

How it was produced

Evidence dates

Sources

Limits to keep in mind

Community reports

Did the scheduled service run?

Scheduled trips with cancellation notices

Trips needing investigation

Cancellations on this route

Latest cancelled trips

Buses arriving bunched

When this route is usually busy

What does the evidence show?

What about time of day?

Where and when did predictions differ repeatedly?

Check every trip and date

What riders want to know

Selected service day from each published schedule

Before

New schedule

Did service improve after the change?

Data behind this result

Trips scheduled that day

What is being shown

How it was produced

Evidence dates

Sources

Limits to keep in mind