With the constant changes in route diversions for various construction projects, water and sewer repairs and overhead reconstruction, the previous Fall 2025 edition was getting cluttered and unwieldy. This version consolidates the current and planned work for late fall and early winter 2025-26.
Updated December 21, 2025 at 8:45am
Current diversions:
Until Spring 2026:
501 Queen cars divert both ways via Broadview, Dundas and Parliament.
503 Kingston Road buses divert both ways from River via Queen and Parliament.
504 King cars terminate at Distillery Loop.
504D King buses operate from Broadview Station to King & Parliament
Ongoing:
501 Queen cars divert both ways via Church, Richmond/Adelaide and York.
At the TTC Board meeting on November 3, management presented statistics on streetcar delays broken down by type of incident. TTC is quite fond of portraying external incidents, especially those related to congestion, as the root of (almost) all evil. The following page is from the CEO’s Report.
Note that external delays (turquoise) occupy the majority of the chart. During discussion of the problem of autos fouling rails, a passing remark by the Interim Chief Operating Officer piqued my curiosity when he said that there were many delays due to the winter storm.
This sent me to the TTC’s delay statistics which are available on the City’s Open Data site. There are codes for many types of delay including “MTAFR”, short for “Auto Fouling Rails”.
According to the “In Focus” box above there has been a 400% year-over-year increase in these delays, although they are styled as “fowling” implying a flock of chickens might be responsible for service issues.
Sorting the data by code and summarizing by date produces interesting results.
Between January 1 and September 30, 2025, there were 843 MTAFR events logged.
Of these, 586 fall between February 14 and 26 hitting a daily high of 65 on February 17.
These blockages were not caused by the typical traffic congestion, but by the City’s utter failure to clear snow on key streets.
105 were on 501 Queen
42 were on 503 Kingston Rd.
84 were on 504 King
93 were on 505 Dundas
186 were on 506 Carlton
3 were on 507 Long Branch
1 was on 508 Lake Shore
2 were on 509 Harbourfront
None were on 510 Spadina or 511 Bathurst
6 were on 512 St. Clair
A few dozen were on various night cars
The pattern here is quite clear: routes on wide roads or rights-of-way were not seriously affected, but routes on regular 4-lane streets were hammered. (How 511 Bathurst was spared is a mystery. At the time it was running with streetcars from Bathurst Station to King & Spadina, and with buses on the south end of the route.)
To claim that the 400% increase from 2024 is some indication of worsening traffic problems is gross misrepresentation of what actually happened. Although this is the CEO’s report and he almost certainly did not assemble the information himself, he wears this issue for having reported misleading data to the Board and public.
Direct comparison with published 2024 data is difficult because until 2025 the TTC used a much coarser set of delay codes that lumped many types of events under generic headings. There was a category “Held by” in which there were 625 incidents from January to September in 2024. The 843 MTAFR codes in 2025 are quite clearly not a 400% increase over 2024.
Whenever there is a discussion of unreliable service, we hear endlessly about traffic congestion. This definitely is a problem, but not the only one, and certainly not in the way presented by the CEO.
A question arose during the debate about the problem that performance stats are consolidated across all routes. Route-by-route service quality is presented in detail in the second part of this article for all streetcar routes. This shows that problems are widespread in the system, even on routes with reserved lanes.
As for the delay stats cited by the CEO, it is clear that we are not comparing September 2025 to one year earlier as the text implies, but using events from the entire year to date including a major snowstorm that had no equivalent a year earlier. The so-called 400% jump in delays from blocked tracks is due to snow and poor road clearance by the City.
TTC management owes the Board and the public an apology for blatant misrepresentation of the delay statistics.
There are many diversions coming up in the Fall for streetcar routes. Information on these appears in various places on the TTC site, mainly but not exclusively under Service Advisories. As an aid to riders, this article consolidates the available information in one place.
Updated November 28, 2025
***** This article is only for archival purposes. It has been replaced by a new one picking up from mid-November 2025. *****
Major events pending and in progress include:
Construction on Queen between Davies (just east of the Don Bridge) and Broadview.
Reconstruction of the intersection of College and McCaul, and of overhead in the vicinity.
Reconstruction of track and overhead at and near Parliament and Carlton.
Other short term diversions will last only overnight or for a weekend.
Many of these are complicated by the ongoing Ontario Line work at Queen & Yonge forcing some diversions to be more complex than they might be otherwise.
This article will be updated when changes are announced.
November 21: The 501 diversion via Broadview, Dundas and Parliament around water main and track work west of Broadview will begin on November 22.
November 20: Equipment and material mobilization is underway on Queen west of Broadview.
November 17: The 506 diversion has been changed today to avoid the intersection of Church & Dundas where construction blocks the northeast corner. Maps have been added from the TTC’s site.
Effective November 16: The 503 Kingston Road bus will be cut back from Dufferin, and will now loop at York Street via Richmond and University.
November 15: Diversions announced for two projects on 506 Carlton at Parliament & Carlton, and on Gerrard east of Broadview.
November 9: King & Dufferin reopened for streetcar service. 503, 504, 508 will operate via their normal routes.
October 30: King & Dufferin reopens for general traffic and buses. Streetcars to return following track testing.
October 20: Water main reconstruction on Queen west of Broadview has been delayed until early November. 501 Queen streetcars will continue to operate on Queen Street until further notice.
October 13: 504 King is operating with streetcars today over its full route except for the King/Dufferin diversion.
October 9: Maps for 504 King and 506 Carlton diversions added.
October 8: Construction at Queen & Broadview will not start on October 12, and so some diversions will not be required immediately. Information for 501 Queen and 503 Kingston Road has been updated.
October 5: Nuit Blanch & Run For the Cure info moved to the archive section.
October 1: Diversions of 505/305 Dundas and 506/306 Carlton for Nuit Blance and for the Run For The Cure added for October 3/4/5.
September 23: The King/Dufferin start date has been changed to Sunday, September 28.
September 12: King/Dufferin start date pushed back to September 29 or later. The project will now extend to mid-November.
September 9: College/McCaul and Queen East details added.
August 26: King/Dufferin Project
The start date for this project has been changed to mid-September with the exact date to be confirmed. Although new schedules will be in place providing for diversions, service will continue to operate through on King Street until construction actually begins. This likely means that the project will extend further into October than the originally planned Thanksgiving weekend end date. The delay also means that the Tiff diversions will end before the King/Dufferin diversions begin.
Branch lettering for 504 King A/B corrected.
August 25: King/Dufferin Project
Information about Kingston Road night service added.
304 King and 329 Dufferin confirmed to be diverted on the same routes as the 504A and 29 daytime services.
Effective Monday, June 23 at 7am until Thursday, June 26 at 7am, all streetcar service on Queen Street East will divert both ways via Coxwell, Gerrard and Broadview for emergency water main repairs at Vancouver St. just west of Russell Carhouse.
Notice of this change has not yet been posted on the TTC’s site.
Source: Councillor Paula Fletcher
Also effective June 23 at 11pm until Tuesday, July 8 at 4am, buses will replace streetcars on the Queen and Long Branch routes west of Humber Loop for track work.
On May 11, 2025, the diversion arrangements downtown became more complex as the 504 King, 503 Kingston Road and 508 Lake Shore (peak only) streetcar services shifted onto the same Richmond/Adelaide diversion route as 501 Queen. This arrangement will be in place until early September for water main and track repairs at King and Church, as well as for streetcar overhead upgrades on King Street.
As initially implemented, the three routes operated eastbound from King and Spadina, north to Queen, east to York, south to Adelaide, east to Church and north back to Queen. The westbound diversion was similar using Richmond from Church to York.
Immediately after this change, it was obvious that streetcars were snarled in traffic, particularly eastbound on Adelaide. Generally across the diversion, there was a problem with the number of streetcar turns exceeding the intersection capacity in peak periods. There is also construction interference at a few locations along the way.
I wrote about capacity issues and other related matters:
On May 16, the TTC changed the 504 King diversion so that it used Shaw Street between Queen and King to reduce the number of turns at Spadina. Only the 503 Kingston Road cars, and a few peak period 508 Lake Shore cars remained, as well as the 511 Bathurst cars looping via Spadina, Adelaide and Charlotte. (The 511 diversion will end on June 22 when streetcar service returns to Exhibition Loop.)
However, this change only addressed the west end of the diversion at Spadina, but further east the full volume of routes 501, 503, 504 and 508 continued to use the diversion between York and Church contributing a high number of streetcars/hour where the service turned. The frequency of service on 501, 503 and 504 is roughly the same through the day. It is the volume of road traffic that changes, not the number of streetcars.
Period
501 Queen
503 Kingston Rd
504 King
508 Lake Shore
Combined
AM Peak
10′ (6)
8′ (7.5)
8′ (7.5)
20′ (3)
2’30″(24)
Midday
9’30” (6.3)
10′ (6)
10′ (6)
3’17” (18.3)
PM Peak
9′ (6.7)
8′ (7.5)
8′ (7.5)
20′ (3)
2’26” (24.7)
Early Evening
10′ (6)
10′ (6)
10′ (6)
3’20″(18)
Late Evening
10′ (6)
10′ (6)
10′ (6)
3’20” (18)
Values in parentheses are vehicles per hour.
Charts in the following section show travel times between University and Jarvis both ways, and how these rose when the volume of 503-504-508 service was added along the diversion.
Today was the first weekday of the King/Church construction diversions. I watch things evolve via NextBus through the morning peak, and then visited King/Spadina during the PM peak. A caveat: Mondays are light traffic days. There was no Gardiner backlog at all on Spadina. Later in the week will likely be more challenging.
During the AM peak, the service on 504 King and 503 Kingston Road did not load properly, and many vehicles were clumped together. This took quite a while to unscramble, and there were big service gaps. The 504 buses also ran in packs and huddled together at Wolseley Loop, at one point six of them representing about 20 minutes worth of service at the scheduled headway. The peak period did not encounter queueing frequently at points where streetcars turn because of many wide service gaps. When a bunch of cars arrived, they queued one by one awaiting their turn, but then the intersections would open up again even though in theory there should always have been transit service waiting.
In the PM peak at King/Spadina, the major sources of traffic were pedestrians, cyclists and transit in that order. I observed that the traffic signal cycle time was 110 seconds (1’50”). This means that there are 32.7 opportunities (3600/110) per hour for a turn to/from Spadina. The nature of the intersection is that only one streetcar can make the turn per cycle.
The combined scheduled service trying to make the EtoN turn per hour at King & Spadina in the PM peak is 23 streetcars.
Route
Headway
Cars/Hour
503 Kingston Road
8′
7.5
504 King Car
10′
6.0
508 Lake Shore
20′
3.0
511 Bathurst Car
9′
6.5
Total
23
Stir in 12 510 Spadinas straight through northbound on a 5′ headway. When there is a 510 (or any other car) serving the farside NB stop it blocks any car waiting to turn off of King. In a 45 minute visit, I saw this happen four times, and one car missed two turning opportunities because of closely-spaced Spadina cars blocking the stop.
Depending on arrival times and bunching, more vehicles can queue up here than there are cycles to accommodate them. This was under probably the best general traffic conditions we will see.
There were traffic wardens, but they left just before 5pm. The biggest problem was pedestrians blocking turning streetcars which do not have a protected turn phase EB on King. There is a WB advanced green because autos are forced to turn off King here, but there is no advanced green for eastbound streetcars.
The large volume of riders transferring from eastbound streetcars to buses adds to the already substantial pedestrian volumes at this intersection.
The Traffic Wardens did not reliably ensure that streetcars got “first dibs” on turning, and after they left, pedestrian interference became worse.
I boarded a 504 King eastbound at about 5:10. There was congested traffic over the route across to Church especially on Adelaide and it took over 15 minutes to get from York to Church. Some people complain about space “wasted” by bike lanes, but it was the left turn lane that was almost always empty. Some traffic used it to scoot around stopped streetcars!
The severe congestion can be seen in the TransSee maps of service for 504 King and 503 Kingston Road below. The tracking lines for the diversion area are almost horizontal for an extended period. Note that the problem is mainly eastbound (lines reading bottom to top).
Tracking data for routes 503 and 504, May 12, 2025, 4pm to 7pm. From TransSee.ca.
I rode a King car east from Spadina and it took a very long time to emerge from the diversion. The car went from 6 minutes early at King on Spadina to 11 minutes late at Queen and Church. Note the length of time spent approaching King and Spadina inching along the street about one carlength at a time. Other locations where the car crept along are also clear in the tracking data.
Tracking data for car 4634. Source TransSee.ca.
Among the problems enroute were:
Congestion on Queen thanks to stopped vehicles and construction in the curb lanes.
Autos infilling Adelaide Street eastbound leaving no room for a streetcar to merge from York Street onto Adelaide. We were eventually rescued by a Traffic Warden.
Extremely slow progress across Adelaide thanks to a traffic backlog from Church Street.
Extremely slow progress on Church Street thanks to a traffic backlog from Queen Street. My car actually fouled the Church/Adelaide intersection as it was unable to complete the EtoN turn in more than one traffic signal cycle.
Ridership on the car was very light and most people got off when the car turned off King onto Spadina. They transferred to the King shuttle buses which were running irregularly and often bunched. These buses were also trapped in the traffic queue eastbound to Spadina of streetcars waiting to turn. (In the chart below, the size of the dot represents the degree of crowding on the vehicle.
Tracking data for 504C and 504D shuttle buses May 12, 2025, 4pm to 7pm. From TransSee.ca.
For those who want to watch the wandering streetcars and buses on NextBus, here is a link. This will open a combined display of routes 501, 503, 504, 510 and 511. The map can be scaled to zoom in to the area of interest. Displays of operating charts on transsee.ca are free for TTC streetcar routes.
Over coming days I will keep an eye on service performance over the diversion, and once a few weeks’ data have accumulated will delve into the details.
The TTC now has a web page with details of the changes for the first phase of the construction and diversions. This includes a map showing the diversions to west of Bathurst rather than just downtown. I have added this in the body of the article.
May 5, 2025 at 1:40pm:
Information about the 304 King and 303 Kingston Road night services has been added.
May 5, 2025 at 1:55pm:
The TTC has confirmed that overhead upgrades on King Street East and on Sumach/River will be completed before the King/Church track work end, and streetcar service will resume in September.
May 5, 2025 at 4:30pm:
I asked the City if it thought the intersections used by diverting streetcars and buses could handle the volume of traffic. They replied, but didn’t add much. See the end of the article for the exchange.
Major changes are coming to downtown streetcar routes on May 11 with the next schedule change. This will accommodate a combination of water main replacement, track reconstruction and streetcar overhead upgrades mainly at King and Church. Work is expected to require diversions until the October schedule change on Thanksgiving weekend.Streetcar service is expected to return with the September schedule change on Labour Day weekend.
The effects of work an King and Church have been known for some time through the Annual Service Plan and through a City report on the project. (The original report and recommendations were amended at the recent Council meeting to lessen the effect of various proposed lane closures.) Service levels have been published via the electronic version of schedules used by trip planning apps. The information about vehicles/hour at various locations is taken from those schedules.
(As an aside, the TTC website has still not been updated to include the 2025 Service Plan even though it was approved by the Board in January.)
With the concentration of transit service through various intersections, and the added complexity that most vehicles will make turns at these locations, there simply will not be enough capacity even under ideal conditions. It is no secret that “ideal” is a word rarely appropriate for transit operations downtown thanks to the lack of robust traffic management and real transit priority.
In past years, the diversion of services from King Street around the TIFF street fair created problems for transit travel times and reliability, but this lasted for a brief period. The planned diversions for King/Church will last through the summer.
Many of the water mains in the “old” city have been in service for over a century. Other parts of King Street have seen renewal, occasionally on an emergency basis following a break and sink hole.
The special trackwork at the King/Church intersection has been in bad shape for some time, and was overdue for replacement. Previous reconstructions were in 1983 and 2003. Other competing construction projects got in the way, and the track conditions have worsened year by year. There are many patches, and a well-deserved slow order unlike the standing practice even at freshly rebuilt junctions.
This intersection is also old enough that it predates the era of panel track construction where pre-welded sections are trucked in and assembled on site. This replaced the older style of tracks assembled piece-by-piece and often not welded robustly if at all. TTC has not yet been through its entire inventory of “old” track given the 20-30 year cycle depending on the level of service, wear, and disintegration at intersections.
Other work planned for this period of suspended streetcar service is the reconstruction of overhead on King and on the Distillery branch for pantograph-only operation.
Closing King & Church for an extended period concurrently with the Ontario Line construction at Queen & Yonge will add to the traffic snarls downtown. The City talks about using Traffic Agents to manage key intersections, but whether they provide enough people at enough places at enough times remains to be seen.
Routes Diverting off of King Street
Three routes are affected: 504 King, 503 Kingston Road and 508 Lake Shore.
The 504 King service will be broken into three sections:
A 504 streetcar service between Broadview to Dundas West Stations operating via the same route as 501 Queen between the Don Bridge and Spadina.
A 504C bus shuttle from Wolseley Loop south on Bathurst and east on King terminating at Broadview & Gerrard.
A 504D bus shuttle from Wolseley Loop south on Bathurst, east on King and south on Sumach to Front & Cherry. Buses will loop via [to be announced] and will not serve Distillery Loop.
The 503 Kingston Road service will be changed so that its western terminus shifts from York Street to Dufferin Loop. Cars will follow the same route as the 504 King via Queen from the Don Bridge to Spadina, then shift south onto King to follow the pre-diversion 504B route to Dufferin.
508 Lake Shore cars will follow the same route as 504 King.
Night Service Changes
The 304 King night car will operate every 20 minutes over the same route as the daytime 504 service diverting via Queen and Spadina.
A 304D night bus will run every half-hour over the same route as the 504D bus from Wolseley Loop to Broadview & Gerrard.
The 303 Kingston Road night car will operate every 20 minutes over the same diversion route as the 304 King night car, and will operate as it does now to Sunnyside.
The maps below are from the City Report about this project originally published in February. An updated map for the first phase has been added later in the article.
For part of the construction period, King/Church will be impassible even to the replacement bus service and it will divert south to Wellington and Front.
These maps do not tell the whole story because another set of construction diversions will overlap the King/Church changes until the next schedule change in late June.
Although water main work at Bathurst/Fleet/Lakeshore is now complete, track work continues there and on Bathurst Street further north. 511 Bathurst streetcars will continue to divert east via King to Spadina looping via Adelaide and Charlotte. The 511B shuttle bus will be shortened from Wolseley Loop at Queen to an on-street loop via King, Portland and Richmond to Bathurst Street.
509 shuttle buses continue operating between Exhibition Loop and Queens Quay Loop at Spadina. 510 streetcars continue operating to Union Station.
The combined effect of the diversions will be greater than during the total meltdown of King service in 2024 when all cars diverted north via Church to Queen because volumes of other routes (510 Spadina, 511 Bathurst and 501 Queen) will be added to the King services, and more intersections will be affected over a wider area.
Updated May 5, 2025 at 12:50pm:
The TTC’s project webpage has a consolidated map of the diversions for the first phase of the work.
From May until early Fall, the TTC and City of Toronto will rebuild an aging water main and track at the intersection of King & Church Streets. A report before Toronto & East York Community Council on February 20, 2025, details plans for service diversions and transit priority measures.
There are two general plans for this project: the first is for phases when the intersection remains open for east-west traffic, and the second for the period when it will be closed. Note that the planned diversions are not the same as in the recent Annual Service Plan. Significant changes are the provision of service to the Distillery District replacing the 504A streetcar with the 504C bus, and the extension of 503 Kingston Road west to Dufferin Loop as opposed to the originally planned McCaul Loop.
Service along Queen Street between River and Spadina will substantially increase with the routes normally on King diverted to the north. Buses will operate as a streetcar replacement.
Traffic restrictions such as parking and turning permissions will change to provide more capacity for transit. Although the report cites the use of traffic wardens and changes to signal timings, it is silent on provisions for the much increased volume of streetcar turns at intersections where no priority signals exist today. (I await feedback from the City on exactly what they propose.)
The entire stretch of Queen Street as well as the Richmond/Adelaide diversion will not be used for CaféTO installations to conserve road space.
As part of this plan, a reserved lane will be created for streetcars eastbound approaching Broadview on Queen, and left turns by other traffic will be banned there.
Restrictions will be in effect from May 11 to October 14, 2025, although the City project is planned to run until August. Streetcar service could return in September, but this will depend on TTC plans for overhead reconstruction on King Street East and on the Sumach/Cherry branch to the Distillery District.
Details of routes and planned changes to traffic regulations follow in the full version of this article.
In the monthly CEO’s Report, one of the KPIs (Key Performance Indices) is a measure of the number of short-turned streetcars. This used to be reported as an absolute count, but is now expressed as a percentage of all trips.
Here is the most recent version:
This chart is a fiction born of the Rick Leary era when, in theory, all short turns were banned and the stats were made to fit the objective. Like many KPIs, this suffers from a combination of system-wide consolidation across all routes and time periods, as well as under-reporting of what is really happening.
An easy way to get the true count is to look at tracking data and compare two points on either side of a short-turn location. For example, Woodbine Loop at Queen and Kingston Rd. is a favourite spot for 501 Queen and some 503 Kingston Road cars to turn back. Counting the number of vehicles crossing Coxwell (west of the loop) with the number at Woodbine Avenue (east of the loop) shows how many cars did not travel east of Kingston Road and, therefore, were short-turned.
The TTC claims that they better their 1% target for trips short turned, but it is clear that they rarely achieve this. In some cases, the value rises above 20% indicating that although much service does get to the terminal, there is a good chance that a rider will encounter a short turn. This is separate from frustrations caused by gaps and bunching.
Short turns happen for many reasons including traffic congestion, too-tight schedules, service blockages for collisions, medical problems, parades … it’s a long list. Riders really don’t care. The basic point is that service they expected to receive is not there, and usually with no advance warning.
The table below summarizes the statistics from the vehicle tracking records in November 2024 for the period from 6am to midnight. It is clear that even on an aggregated level, the proportion of short turns is much higher on these routes that the TTC KPIs indicate.
Updated Dec. 6/24 at 1:30pm: Short turn counts for 504 King eastbound, 507 Long Branch and 508 Lake Shore westbound trips added.
Note: The legends on the original charts in this post were misleading. They have been changed to better reflect what the columns and lines on the charts represent..
Route
Location
Total Trips
Short Turns
% Short Turns
501 Queen
Woodbine Loop EB
3547
198
5.6%
Roncesvalles WB
3537
247
7.0%
503 Kingston Rd
Woodbine Loop EB
3252
136
4.2%
504 King
Spadina WB
6453
256
4.0%
Roncesvalles WB
3275
364
11.1%
Church EB
6319
126
2.0%
Parliament EB
6198
204
3.3%
Dundas EB
2943
71
2.4%
505 Dundas
Parliament EB
3040
212
7.0%
Lansdowne WB
3062
397
13.0%
506 Carlton
Coxwell EB
3031
293
9.7%
Lansdowne WB
3256
572
17.6%
507 Long Branch
Kipling WB
2074
88
3.0%
508 Lake Shore
Kipling WB
193
19
9.8%
512 St. Clair (*)
Lansdowne WB
2068
249
12.0%
Oakwood WB
2113
122
5.8%
(*) For 512 St. Clair, only data from November 14 onwards when streetcar service was restored are included.
The TTC has announced that the Queen car diversion around Ontario Line construction at Yonge Street will be simplified effective Sunday, November 10, 2024.
Streetcars will operate westbound via Church, Richmond and York, and eastbound via new track on York, Adelaide and Church. Connections to the subway will be via walking transfers south from Queen Station to Richmond (westbound service) and north from King Station to Adelaide (eastbound service). Connections to the University Line will be at Osgoode Station both ways.
Updated Nov 8 at 6pm: The TTC has confirmed that there will be no stops at Victoria, Bay or York as these are within walking distance of other stops.
The 501B shuttle bus from Broadview/Gerrard to Wolseley Loop at Bathurst Street will no longer operate.
There will be no 501/301 service on King Street at King or St. Andrew Stations.
Other services in the King Street corridor will remain: 503 Kingston Road, 504 King and 508 Lake Shore.
[An earlier version of this article cited November 6, not the 10th.]
Steve Munro 