Previous measure: 81.9% of arrivals were within five minutes of the timetable (5,952 arrivals over 17 days). The report card below uses the newer one-minute-early to five-minutes-late measure when it has readings.
STO 路線 58: Pré Tunney
- TUNNEY'S PASTURE/YARROW97 min sched.
- TUNNEY'S PASTURE/SORREL98 min sched.
- TUNNEY'S PASTURE98 min sched.
- COLOMBINE/HOLLAND99 min sched.
- chemin d'AYLMER/d'AUGUSTA109 min sched.
- chemin d'AYLMER/CHAUDIÈRE110 min sched.
- chemin d'AYLMER/ALLEN111 min sched.
- chemin d'AYLMER/ATHOLL DOUNE111 min sched.
- chemin d'AYLMER/d'AMOUR112 min sched.
- PARC-O-BUS RIVERMEAD113 min sched.
- chemin d'AYLMER/de l'HIPPODROME116 min sched.
- chemin d'AYLMER/MORLEY-WALTERS116 min sched.
- chemin d'AYLMER/VANIER117 min sched.
- chemin d'AYLMER/VANIER117 min sched.
- chemin d'AYLMER/GARDEN118 min sched.
- chemin d'AYLMER/du GOLF119 min sched.
- chemin d'AYLMER/GRIMES
- chemin d'AYLMER/FRASER
- chemin d'AYLMER/SAMUEL-EDEY
- chemin d'AYLMER/BELMONT
- chemin d'AYLMER/de la COLLINE
- PRINCIPALE/du BORDEAUX
- WILFRID-LAVIGNE/PRINCIPALE
- WILFRID-LAVIGNE/LEGUERRIER
- WILFRID-LAVIGNE/JOHN-EGAN
- WILFRID-LAVIGNE/de la CORSE
- WILFRID-LAVIGNE/CHARLES-DEVLIN
- WILFRID-LAVIGNE/des RÉDEMPTORISTES
- WILFRID-LAVIGNE/de BRUYNE
- des ALLUMETTIÈRES/WILFRID-LAVIGNE
- des ALLUMETTIÈRES/des CHAMPIGNONS
- des ALLUMETTIÈRES/KLOCK
- des ALLUMETTIÈRES/FRONT
- PARC-O-BUS ALLUMETTIÈRES arrêt d'arrivée
Slowest stretches · running measure, 10月8日 to 11月4日
Of the slowest stretches, the most time is lost between PARC-O-BUS ALLUMETTIÈRES and WILFRID-LAVIGNE/JEAN-DELISLE.
- +8.2 分PARC-O-BUS ALLUMETTIÈRES – WILFRID-LAVIGNE/JEAN-DELISLE
9 km/h seen, 21 km/h in the timetable - +4.9 分TUNNEY'S PASTURE/YARROW – PARC-O-BUS RIVERMEAD
14 km/h seen, 19 km/h in the timetable - +0.7 分chemin d'AYLMER/du BORDEAUX – chemin d'AYLMER/VANIER
21 km/h seen, 23 km/h in the timetable - +0.4 分PARC-O-BUS RIVERMEAD – chemin d'AYLMER/de l'HIPPODROME
9 km/h seen, 10 km/h in the timetable - +0.3 分chemin d'AYLMER/VANIER – chemin d'AYLMER/de l'HIPPODROME
20 km/h seen, 23 km/h in the timetable
測定方法 →
This is the running reliability measure, not the report-card measure: for each stretch between two stops, how long buses really took against how long the timetable allows, over 21 counted days at all hours. It shows which stretches run behind, not how often. The report-card measure replaces it as soon as it has enough weekdays.
Example: a one-kilometre stretch the timetable runs at 20 km/h takes 3 minutes; if buses averaged 15 km/h it took 4, so 1 minute is lost there.
The line right now · 10:30
The line right now · 10:30
No bus is reporting its position on the line now; next scheduled 12:07
- TUNNEY'S PASTURE/YARROW97 min sched.
- TUNNEY'S PASTURE/SORREL98 min sched.
- TUNNEY'S PASTURE98 min sched.
- COLOMBINE/HOLLAND99 min sched.
- chemin d'AYLMER/d'AUGUSTA109 min sched.
- chemin d'AYLMER/CHAUDIÈRE110 min sched.
- chemin d'AYLMER/ALLEN111 min sched.
- chemin d'AYLMER/ATHOLL DOUNE111 min sched.
- chemin d'AYLMER/d'AMOUR112 min sched.
- PARC-O-BUS RIVERMEAD113 min sched.
- chemin d'AYLMER/de l'HIPPODROME116 min sched.
- chemin d'AYLMER/MORLEY-WALTERS116 min sched.
- chemin d'AYLMER/VANIER117 min sched.
- chemin d'AYLMER/VANIER117 min sched.
- chemin d'AYLMER/GARDEN118 min sched.
- chemin d'AYLMER/du GOLF119 min sched.
- chemin d'AYLMER/GRIMES
- chemin d'AYLMER/FRASER
- chemin d'AYLMER/SAMUEL-EDEY
- chemin d'AYLMER/BELMONT
- chemin d'AYLMER/de la COLLINE
- PRINCIPALE/du BORDEAUX
- WILFRID-LAVIGNE/PRINCIPALE
- WILFRID-LAVIGNE/LEGUERRIER
- WILFRID-LAVIGNE/JOHN-EGAN
- WILFRID-LAVIGNE/de la CORSE
- WILFRID-LAVIGNE/CHARLES-DEVLIN
- WILFRID-LAVIGNE/des RÉDEMPTORISTES
- WILFRID-LAVIGNE/de BRUYNE
- des ALLUMETTIÈRES/WILFRID-LAVIGNE
- des ALLUMETTIÈRES/des CHAMPIGNONS
- des ALLUMETTIÈRES/KLOCK
- des ALLUMETTIÈRES/FRONT
- PARC-O-BUS ALLUMETTIÈRES arrêt d'arrivée
- PARC-O-BUS ALLUMETTIÈRES
- des ALLUMETTIÈRES/FRONT
- des ALLUMETTIÈRES/BROAD
- des ALLUMETTIÈRES/des CHAMPIGNONS
- WILFRID-LAVIGNE/JEAN-DELISLE
- WILFRID-LAVIGNE/des RÉDEMPTORISTES
- WILFRID-LAVIGNE/CHARLES-DEVLIN
- WILFRID-LAVIGNE/de la CORSE
- WILFRID-LAVIGNE/LEGUERRIER
- WILFRID-LAVIGNE/PRINCIPALE
- WILFRID-LAVIGNE/ PRINCIPALE
- chemin d'AYLMER/du BORDEAUX
- chemin d'AYLMER/de la COLLINE
- chemin d'AYLMER/BELMONT
- chemin d'AYLMER/FRASER
- chemin d'AYLMER/VICTOR-BEAUDRY
- chemin d'AYLMER/MAPLE GROVE
- chemin d'AYLMER/HAYDON
- chemin d'AYLMER/VANIER
- chemin d'AYLMER/MORLEY-WALTERS
- chemin d'AYLMER/de l'HIPPODROME
- PARC-O-BUS RIVERMEAD
- chemin d'AYLMER/de HONFLEUR
- chemin d'AYLMER/d'AMOUR
- chemin d'AYLMER/ATHOLL DOUNE
- chemin d'AYLMER/ALLEN
- chemin d'AYLMER/CHAUDIÈRE
- chemin d'AYLMER/d'AUGUSTA
- COLOMBINE/CHARDON
- TUNNEY'S PASTURE
- TUNNEY'S PASTURE/YARROW
Stops and scheduled times from OC Transpo’s timetable (GTFS, 2026-11-05). Every time under a stop is from the timetable (sched.), not a prediction.
Right now on Route 58
0 busesOpen on the map
お知らせ0件from OC Transpo
Planned change · 2026-11-03service change
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.
2026年11月4日 · 15 trips in the retained timetable · retained notices; capture coverage unverified
In short: 13 with a matched position · 0 with no matching position (to investigate) · 2 with an unknown outcome.
- 05:45– 06:15Trip sto:63294865Vehicle position matchedFirst / last feed position: 5:46 GMT-5 / 6:17 GMT-5; not actual start or end times.
- 06:15– 06:47Trip sto:63295872Vehicle position matchedFirst / last feed position: 6:13 GMT-5 / 6:52 GMT-5; not actual start or end times.
- 06:45– 07:19Trip sto:63295320Vehicle position matchedFirst / last feed position: 6:34 GMT-5 / 7:22 GMT-5; not actual start or end times.
- 07:15– 07:51Trip sto:63295128Vehicle position matchedFirst / last feed position: 7:12 GMT-5 / 8:07 GMT-5; not actual start or end times.
- 07:45– 08:21Trip sto:63294603Vehicle position matchedFirst / last feed position: 7:34 GMT-5 / 8:23 GMT-5; not actual start or end times.
- 08:08– 08:48Trip sto:63295129Vehicle position matchedFirst / last feed position: 8:22 GMT-5 / 8:45 GMT-5; not actual start or end times.
- 08:15– 08:51Trip sto:63295782Vehicle position matchedFirst / last feed position: 8:07 GMT-5 / 8:47 GMT-5; not actual start or end times.
- 12:08– 12:45Trip sto:63295236Insufficient coverage or identity; outcome unknown
- 15:08– 15:48Trip sto:63296139Insufficient coverage or identity; outcome unknown
- 15:38– 16:19Trip sto:63294825Vehicle position matchedFirst / last feed position: 16:17 GMT-5 / 16:22 GMT-5; not actual start or end times.
- 16:09– 16:50Trip sto:63295072Vehicle position matchedFirst / last feed position: 16:17 GMT-5 / 17:08 GMT-5; not actual start or end times.
- 16:15– 16:52Trip sto:63294821Vehicle position matchedFirst / last feed position: 16:17 GMT-5 / 16:54 GMT-5; not actual start or end times.
More on Route 58
0 busesOpen on the map
Planned change · 2026-11-03service change
Would you count on route 58?
No sign-in needed. A vote from a device that is not signed in counts a little less than one from an account, and a person who rates many routes counts a little less on each, so no one voice outweighs the rest.
この路線の運休
運休の数え方6 partial-capture days not counted.
この路線では、直近の四週間に数えられた運休はありません。確認できなかったお知らせがあれば、下に表示されます。
Did not come (no bus seen, no notice), last 7 days: none among the trips we could check.
この路線の近くの市の道路工事
All road work on AlertsRoad work and event closures the City of Ottawa has published, measured as near this route’s path. Near is not proof that the bus is detoured: check the operator’s alerts for that.
- Kichi Zibi Mikan道路工事 · About 0 m from the routeUntil 2026/11/20
Updated 2026/11/05
Source: City of Ottawa open data. City road work map
More on Route 58
- Other days2026年10月Days →
- Today’s timelineArchived bus positions in ReplayReplay →
- Road work on this routeStops moved and time added by road workWorks →
- Service change scorecardHow a service change didScorecard →
- Crowding and service deliverySTO crowding, rail, trips deliveredCrowding →
- 数字の出どころOC Transpo timetable and live bus positionsSources →
- Page not loading?The timetable still opensもう一度試す
- レポートカード全体
- 市議会議員に伝える
- Fix this routePropose a change to this route in Design the networkFix this →
- Change this routeDraw a different route or timetable in Design the networkChange this route →
Explore the route
Choose a destination, then select a stop on the map or route diagram.
0 verified representative shapes · 66 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.
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.
Published stop order does not prove that a vehicle is running now.
Schedule and source records
TUNNEY'S PASTURE/YARROW to PARC-O-BUS ALLUMETTIÈRES arrêt d'arrivée · 34 stops
Scheduled from 2026/11/03 to 2026/12/29
This service is published only as specific added dates, not as a weekly calendar.
4 official service records
40 added dates and 0 removed dates
Review the official service records
Service sto:H01J26DS-Semaine-20-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/24
Service sto:H01J907S-Semaine-0-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/21, 2026/12/22, 2026/12/23, 2026/12/29
Service sto:H01J907S-Semaine-10-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/28
Service sto:H01S926S-Semaine-2-_26AUT-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/11/03, 2026/11/04, 2026/11/05, 2026/11/06, 2026/11/09, 2026/11/10, 2026/11/11, 2026/11/12, 2026/11/13, 2026/11/16, 2026/11/17, 2026/11/18, 2026/11/19, 2026/11/20, 2026/11/23, 2026/11/24, 2026/11/25, 2026/11/26, 2026/11/27, 2026/11/30, 2026/12/01, 2026/12/02, 2026/12/03, 2026/12/04, 2026/12/07, 2026/12/08, 2026/12/09, 2026/12/10, 2026/12/11, 2026/12/14, 2026/12/15, 2026/12/16, 2026/12/17, 2026/12/18
Service records for this stop pattern
Service sto:H01J26DS-Semaine-20-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/24
Service sto:H01J907S-Semaine-0-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/21, 2026/12/22, 2026/12/23, 2026/12/29
Service sto:H01J907S-Semaine-10-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/28
Service sto:H01S926S-Semaine-2-_26AUT-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/11/03, 2026/11/04, 2026/11/05, 2026/11/06, 2026/11/09, 2026/11/10, 2026/11/11, 2026/11/12, 2026/11/13, 2026/11/16, 2026/11/17, 2026/11/18, 2026/11/19, 2026/11/20, 2026/11/23, 2026/11/24, 2026/11/25, 2026/11/26, 2026/11/27, 2026/11/30, 2026/12/01, 2026/12/02, 2026/12/03, 2026/12/04, 2026/12/07, 2026/12/08, 2026/12/09, 2026/12/10, 2026/12/11, 2026/12/14, 2026/12/15, 2026/12/16, 2026/12/17, 2026/12/18
PARC-O-BUS ALLUMETTIÈRES to TUNNEY'S PASTURE/YARROW · via chemin d'AYLMER/BERKLY-POWELL · 32 stops
Scheduled from 2026/11/03 to 2026/12/29
This service is published only as specific added dates, not as a weekly calendar.
4 official service records
40 added dates and 0 removed dates
Review the official service records
Service sto:H01J26DS-Semaine-20-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/24
Service sto:H01J907S-Semaine-0-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/21, 2026/12/22, 2026/12/23, 2026/12/29
Service sto:H01J907S-Semaine-10-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/28
Service sto:H01S926S-Semaine-2-_26AUT-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/11/03, 2026/11/04, 2026/11/05, 2026/11/06, 2026/11/09, 2026/11/10, 2026/11/11, 2026/11/12, 2026/11/13, 2026/11/16, 2026/11/17, 2026/11/18, 2026/11/19, 2026/11/20, 2026/11/23, 2026/11/24, 2026/11/25, 2026/11/26, 2026/11/27, 2026/11/30, 2026/12/01, 2026/12/02, 2026/12/03, 2026/12/04, 2026/12/07, 2026/12/08, 2026/12/09, 2026/12/10, 2026/12/11, 2026/12/14, 2026/12/15, 2026/12/16, 2026/12/17, 2026/12/18
Service records for this stop pattern
Service sto:H01J26DS-Semaine-20-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/24
Service sto:H01J907S-Semaine-0-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/21, 2026/12/22, 2026/12/23, 2026/12/29
Service sto:H01J907S-Semaine-10-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/28
Service sto:H01S926S-Semaine-2-_26AUT-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/11/03, 2026/11/04, 2026/11/05, 2026/11/06, 2026/11/09, 2026/11/10, 2026/11/11, 2026/11/12, 2026/11/13, 2026/11/16, 2026/11/17, 2026/11/18, 2026/11/19, 2026/11/20, 2026/11/23, 2026/11/24, 2026/11/25, 2026/11/26, 2026/11/27, 2026/11/30, 2026/12/01, 2026/12/02, 2026/12/03, 2026/12/04, 2026/12/07, 2026/12/08, 2026/12/09, 2026/12/10, 2026/12/11, 2026/12/14, 2026/12/15, 2026/12/16, 2026/12/17, 2026/12/18
PARC-O-BUS ALLUMETTIÈRES to TUNNEY'S PASTURE/YARROW · via COLOMBINE/CHARDON · 31 stops
Scheduled from 2026/11/03 to 2026/12/29
This service is published only as specific added dates, not as a weekly calendar.
4 official service records
40 added dates and 0 removed dates
Review the official service records
Service sto:H01J26DS-Semaine-20-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/24
Service sto:H01J907S-Semaine-0-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/21, 2026/12/22, 2026/12/23, 2026/12/29
Service sto:H01J907S-Semaine-10-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/28
Service sto:H01S926S-Semaine-2-_26AUT-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/11/03, 2026/11/04, 2026/11/05, 2026/11/06, 2026/11/09, 2026/11/10, 2026/11/11, 2026/11/12, 2026/11/13, 2026/11/16, 2026/11/17, 2026/11/18, 2026/11/19, 2026/11/20, 2026/11/23, 2026/11/24, 2026/11/25, 2026/11/26, 2026/11/27, 2026/11/30, 2026/12/01, 2026/12/02, 2026/12/03, 2026/12/04, 2026/12/07, 2026/12/08, 2026/12/09, 2026/12/10, 2026/12/11, 2026/12/14, 2026/12/15, 2026/12/16, 2026/12/17, 2026/12/18
Service records for this stop pattern
Service sto:H01J26DS-Semaine-20-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/24
Service sto:H01J907S-Semaine-0-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/21, 2026/12/22, 2026/12/23, 2026/12/29
Service sto:H01J907S-Semaine-10-_26FET-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/12/28
Service sto:H01S926S-Semaine-2-_26AUT-1111100-
sto:58
This service is published only as specific added dates, not as a weekly calendar.
Added dates: 2026/11/03, 2026/11/04, 2026/11/05, 2026/11/06, 2026/11/09, 2026/11/10, 2026/11/11, 2026/11/12, 2026/11/13, 2026/11/16, 2026/11/17, 2026/11/18, 2026/11/19, 2026/11/20, 2026/11/23, 2026/11/24, 2026/11/25, 2026/11/26, 2026/11/27, 2026/11/30, 2026/12/01, 2026/12/02, 2026/12/03, 2026/12/04, 2026/12/07, 2026/12/08, 2026/12/09, 2026/12/10, 2026/12/11, 2026/12/14, 2026/12/15, 2026/12/16, 2026/12/17, 2026/12/18
Official feed version 623ad8b0-ad29-4d70-b8e6-e594a396233e
Source checksum 64b436d79ab51a76dba10f09ef79fc4530f2e49045abd80fd8d3662e3e8a8f8d
この路線の停留所
Pob Allum
- TUNNEY'S PASTURE/YARROW
- TUNNEY'S PASTURE/SORREL
- TUNNEY'S PASTURE
- COLOMBINE/HOLLAND
- chemin d'AYLMER/d'AUGUSTA
- chemin d'AYLMER/CHAUDIÈRE
- chemin d'AYLMER/ALLEN
- chemin d'AYLMER/ATHOLL DOUNE
- chemin d'AYLMER/d'AMOUR
- PARC-O-BUS RIVERMEAD
- chemin d'AYLMER/de l'HIPPODROME
- chemin d'AYLMER/MORLEY-WALTERS
- chemin d'AYLMER/VANIER
- chemin d'AYLMER/VANIER
- chemin d'AYLMER/GARDEN
- chemin d'AYLMER/du GOLF
- chemin d'AYLMER/GRIMES
- chemin d'AYLMER/FRASER
- chemin d'AYLMER/SAMUEL-EDEY
- chemin d'AYLMER/BELMONT
- chemin d'AYLMER/de la COLLINE
- PRINCIPALE/du BORDEAUX
- WILFRID-LAVIGNE/PRINCIPALE
- WILFRID-LAVIGNE/LEGUERRIER
- WILFRID-LAVIGNE/JOHN-EGAN
- WILFRID-LAVIGNE/de la CORSE
- WILFRID-LAVIGNE/CHARLES-DEVLIN
- WILFRID-LAVIGNE/des RÉDEMPTORISTES
- WILFRID-LAVIGNE/de BRUYNE
- des ALLUMETTIÈRES/WILFRID-LAVIGNE
- des ALLUMETTIÈRES/des CHAMPIGNONS
- des ALLUMETTIÈRES/KLOCK
- des ALLUMETTIÈRES/FRONT
- PARC-O-BUS ALLUMETTIÈRES arrêt d'arrivée
Pré Tunney
- PARC-O-BUS ALLUMETTIÈRES
- des ALLUMETTIÈRES/FRONT
- des ALLUMETTIÈRES/BROAD
- des ALLUMETTIÈRES/des CHAMPIGNONS
- WILFRID-LAVIGNE/JEAN-DELISLE
- WILFRID-LAVIGNE/des RÉDEMPTORISTES
- WILFRID-LAVIGNE/CHARLES-DEVLIN
- WILFRID-LAVIGNE/de la CORSE
- WILFRID-LAVIGNE/LEGUERRIER
- WILFRID-LAVIGNE/PRINCIPALE
- WILFRID-LAVIGNE/ PRINCIPALE
- chemin d'AYLMER/du BORDEAUX
- chemin d'AYLMER/de la COLLINE
- chemin d'AYLMER/BELMONT
- chemin d'AYLMER/FRASER
- chemin d'AYLMER/VICTOR-BEAUDRY
- chemin d'AYLMER/MAPLE GROVE
- chemin d'AYLMER/HAYDON
- chemin d'AYLMER/VANIER
- chemin d'AYLMER/MORLEY-WALTERS
- chemin d'AYLMER/de l'HIPPODROME
- PARC-O-BUS RIVERMEAD
- chemin d'AYLMER/de HONFLEUR
- chemin d'AYLMER/d'AMOUR
- chemin d'AYLMER/ATHOLL DOUNE
- chemin d'AYLMER/ALLEN
- chemin d'AYLMER/CHAUDIÈRE
- chemin d'AYLMER/d'AUGUSTA
- COLOMBINE/CHARDON
- TUNNEY'S PASTURE
- TUNNEY'S PASTURE/YARROW