501/503/507 Diversions and Bus Replacements

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.

Source: TTC

King/Church Diversion Performance – April 20 to May 26, 2025

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.

Period501 Queen503 Kingston Rd504 King508 Lake ShoreCombined
AM Peak10′ (6)8′ (7.5)8′ (7.5)20′ (3)2’30″(24)
Midday9’30” (6.3)10′ (6)10′ (6)3’17” (18.3)
PM Peak9′ (6.7)8′ (7.5)8′ (7.5)20′ (3)2’26” (24.7)
Early Evening10′ (6)10′ (6)10′ (6)3’20″(18)
Late Evening10′ (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.

Continue reading

King/Church Diversion Observations May 12, 2025

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.

RouteHeadwayCars/Hour
503 Kingston Road8′7.5
504 King Car10′6.0
508 Lake Shore20′3.0
511 Bathurst Car9′6.5
Total23

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).

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.

King-Church Construction and Traffic Effects

Updated May 5, 2025 at 12:50pm:

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.

Source: City Report at p. 5

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.

Source: City Report at p. 5

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.

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King/Church Construction Diversions and Transit Priority Plans

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.

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TTC’s Dubious Short Turn Statistics

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..

RouteLocationTotal TripsShort Turns% Short Turns
501 QueenWoodbine Loop EB35471985.6%
Roncesvalles WB35372477.0%
503 Kingston RdWoodbine Loop EB32521364.2%
504 KingSpadina WB64532564.0%
Roncesvalles WB327536411.1%
Church EB63191262.0%
Parliament EB61982043.3%
Dundas EB2943712.4%
505 DundasParliament EB30402127.0%
Lansdowne WB306239713.0%
506 CarltonCoxwell EB30312939.7%
Lansdowne WB325657217.6%
507 Long BranchKipling WB2074883.0%
508 Lake ShoreKipling WB193199.8%
512 St. Clair (*)Lansdowne WB206824912.0%
Oakwood WB21131225.8%

(*) For 512 St. Clair, only data from November 14 onwards when streetcar service was restored are included.

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501/301 Queen Diversion via Richmond/Adelaide Begins November 10 [Corrected Date]

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.]

Wandering Streetcars: Fall 2024 (Updated Oct 21)

Updated October 21, 2024 at 11:30am: The end date for the 501 Queen diversion via Church, King and Spadina has been changed to “mid-November”.

Updated October 18, 2024 at 11:00am: Information on diversions that have finished has been moved to the end of the article to avoid confusion. A planned diversion on Queen west late evening and overnight service from October 21-24 has been added.

Effective October 13: (Don Bridge reopens two days earlier than the planned Oct. 15)

  • 501 Queen:
    • West end: Regular service.
    • Downtown: Streetcar Diversion via Church, King and Spadina both ways.
    • East end: Regular service restored at the Don Bridge.
    • Shuttle bus from Broadview & Gerrard to Queen & Bathurst:
      • Westbound via Church, Richmond and Bay
      • Eastbound via Bay, King and Church until 10pm daily
      • Eastbound via University, King and Church from 10pm to 5am daily
  • 503 Kingston Road: Regular service from Bingham Loop to King & York looping downtown via Church and Wellington Streets.
  • 504 King: Regular 504B routing restored between Broadview Station and Dufferin Loop. 504A has already been on its regular routing and does not change.
  • 508 Lake Shore: Regular route to Broadview Station via Queen and Broadview restored.

Effective October 21-24 Only

  • 501/301 Queen
    • October 21-24 only from 11pm to 4am: Streetcars divert between Shaw and Roncesvalles via King for trackwork at Queen & Brock. Shuttle buses to Neville Loop

Effective Mid-November:

  • 501 Queen: to be announced.
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Queen East Service Diversion: Sept. 26 – Oct. 2

Metrolinx work at Queen and Degrassi Streets will require a street closure and diversion of transit service during installation of a new bridge deck for the Lake Shore East GO corridor. As part of the Ontario Line work, the GO corridor will be raised to the now-standard elevation above roads it crosses. This work has been underway at various locations northward from Eastern Avenue along the corridor.

The Metrolinx work will begin on the evening of Friday, September 27 at 9pm, but the TTC will remove its streetcar overhead and power supply beginning on Thursday, September 26 at 9pm.

The Metrolinx work will end on the morning of Monday, September 30 at 5am, but streetcar service will not resume until Wednesday, October 2 at 4am to allow for reinstallation of streetcar overhead. A benefit of the new, higher bridge is that problems with passing trucks tearing down the overhead should cease.

TTC will run a shuttle bus service between River Street and Kingston Road, diverting both ways via Broadview, Dundas and Carlaw around the construction area.

This will affect the daytime and overnight services on 501/301 Queen and 503/303 Kingston Road.

TTC map:

Metrolinx map:

The TTC and Metrolinx notices for this work contain slightly different information. I have confirmed the dates shown above with TTC Media Relations.

King West Construction Diversions End Early

The City/TTC project to rebuild utilities, track and the roadway on King Street between Dufferin and Shaw Streets has completed earlier than originally planned. The roadway is now open, and TTC will be restoring power to allow testing of its new tracks and overhead.

Streetcar service between Shaw and Roncesvalles on King will resume with the October schedule change on October 6. Affected routes will resume their normal destinations:

  • 501 Queen will operate to Humber Loop.
  • 504B King will operate to Dufferin Loop.
  • 63 Ossington will resume its Liberty Village loop via Atlantic Avenue and King Street. (Although there was a proposal to change this route to use Dufferin Loop as a western terminus in the Service Plan, this is not being implemented.)

This project originally included the reconstruction of the King/Dufferin intersection, but this was deferred to 2025 as part of a planned water main and track replacement project from Dufferin Street west to Close Avenue.

According to the TOInview map of planned construction work, other water main and track projects affecting King Street in 2025 include:

  • The Church Street intersection
  • Shaw to Bathurst

Updated September 18, 2024 at 3:40 pm:

The 63 Ossington bus will revert to using Atlantic Avenue, and then King west to Roncesvalles on Monday, September 16 until October 5. From October 6 onward, the Ossington bus will loop east on King to Shaw, its original pre-construction route and streetcars will serve King Street.