TTC Board Meeting: April 11, 2024 (Part I)

The TTC Board met on April 11 with a long agenda. Among items of interest are:

  • CEO’s Report
  • * 2024 Asset Management Plan
  • Line 3 SRT Incident Investigation and Subway Track Continuous Improvement Initiatives
  • Procurement Authorization – Subway Track Rail Milling Services
  • * City Council Transmittal – CC15.1 Budget Implementation Including Property Tax Rates, User Fees and Related Matters
  • * Financial and Major Projects Update for the Year Ended December 31, 2023
  • * Easier Access Phase III – Project Status Update April 2024
  • Approval of Public Art Concepts for the Bay, Castle Frank, Christie, Donlands and Lansdowne Stations

I have already written about the SRT report, and here will discuss only the deputations and discussion at the Board meeting.

(*) Part II will review the Asset Management Plan, and Part III will cover updates on TTC finances, Major Projects and Easier Access.

A Draft Report on the TTC’s “Innovation and Sustainability Framework” was deferred to the May Board meeting, and I will comment on that when it reappears.

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Ten Questions About the SRT Derailment

Among the reports on the TTC Board agenda for April 11 is a recap of the SRT investigation. I have already written about shortcomings and contradictions in this report and will not belabour that here.

The fundamental question is whether management are being entirely transparent in their presentation. If there is someone on the Board bold enough to challenge them, here are a few key questions:

  1. Ten days before the derailment, a high reaction rail was reported at the site, but this was logged as a low priority problem. The misalignment, reported as 1/2 inch, is on a par with the normal clearance between the LIM motor under SRT cars and the reaction rail. What repairs, if any, were made to correct this problem, and were the bolts holding the reaction rail checked for their integrity?
  2. At the site, joins in both the reaction rail cap and the main reaction rail were at the same position. This weakens the structure because the two sections cannot reinforce each other against deflection by magnetic forces as trains pass. The sections are supposed to be staggered to prevent this type of failure. Why weren’t they, and how many other locations on the SRT shared the same problem?
  3. How recently installed were the bolts that failed at the derailment site?
  4. Consultant reports state that the manufacturer, Hilti, did not intend its anchors to be used in a situation where the bolts would flex under load as on the SRT. Why was this not reported to the Board in the September 2023 briefing?
  5. New bolts on the SRT were not those supplied by Hilti, but were substituted by the TTC. The replacement bolts were longer and they used a different thread profile than the originals. Were these approved by Hilti?
  6. What portions of the SRT were reviewed by the consultants, and did they find other defects similar to those at the derailment site?
  7. Have all the reports, either internal or produced by consultants, about the derailment been made public? If not, why not, and when will they be made available?
  8. TTC management claims that they did not reduce the level of maintenance on the SRT even though it was to close in fall 2023. However, the consultants point out that capital repairs (as opposed to routine inspections) were discontinued, and that only that type of work would have detected loose reaction rail bolts. How does TTC management reconcile these claims?
  9. At the September 2023 Board meeting, TTC staff stated that the consultant’s recommendations for work to inspect and restore the SRT to safe operation would take longer then the planned remaining life of the line. How can the need to do so much work be reconciled with claims of regular inspection and repair?
  10. Why were the consultant reports posted to the TTC’s website in November and December 2023 with no notice to the public nor to the Board?

The TTC would like to put the derailment behind them and focus on improvements going forward. However, one must ask how long the practices leading to the SRT crash were used, and whether shortfalls were the result of budgetary “efficiencies” rather than good engineering. By extension, what other parts of the TTC might be compromised, and what is needed to correct this situation.

Revisionist SRT History at the TTC

On April 3, 2024, the advocacy group TTCriders submitted a request to the City of Toronto Auditor General for a review of TTC maintenance practices. This arose both from the July 2023 SRT derailment and other recent events on the subway including a broken switch and a flurry of slow orders.

Full disclosure: I was asked to review a draft of the TTCriders letter and suggested minor edits, but am not a party to their request.

Both in the staff presentation at the TTC’s September 26, 2023 Board Meeting and in comments responding to TTCriders, the TTC has been quite clear that it regards the root cause of the SRT derailment to be loose mounting bolts for the reaction rail. This does not tell the full story, especially in light of consultant reports that were published well after the September 26 meeting.

The published version of the Network Rail report is dated August 23. The Hatch report is Sept 28. Gannett-Fleming’s is Oct 12. Systra’s is Nov 30. For an extensive review of these, see my previous article:

A common thread in the consultant reports was that inspection and maintenance practices were inadequate, staff were not trained in the potential danger of defects that they discovered, and many staff were juniors who had not fully qualified as track inspectors. At the time, this was treated as a problem limited to the SRT. Recent events suggest that poor practices extend beyond to the rail network generally, and this is a more pervasive problem than originally reported.

The staff presentation in September was part of a larger review of the SRT replacement service, and the report title gives no hint that the derailment is part of this. Elsewhere in the same agenda, the CEO’s report celebrates the “Farewell to the SRT” event but makes no mention of the derailment reviews.

In the TTC’s review of these reports, presented in the April 11 Board meeting agenda, these suppositions are countered, although not entirely convincingly. It is fair to assume that most people will not be familiar with the detailed reports and will take the TTC’s rebuttal at face value. [The April 11 report is discussed later in this article.]

TTC spokesperson Stuart Green said CEO Rick Leary ordered the external reports the night of the derailment to get answers on what happened while including links to the reports posted on the TTC website. He also said the matter was discussed at the Sept. 26 TTC board meeting.

“TTCriders was represented at this same meeting so presumably they heard the same information and are fully aware what the root cause was,” he wrote.

CityNews April 3, 2024

Certainly TTCriders and anyone else attending the September 26 meeting or playing the video later “heard the same information”. The problem lies in being “fully aware” of the root cause which was not the loose bolts, but the failure to detect and correct the problem, and more generally the state of inspection work and staff training. A related problem identified by the consultants was that previous repairs at the derailment site had created a weakness in the reaction rail which, combined with loose bolts, made the failure causing the derailment more likely.

The September presentation noted the difficulty of inspecting the reaction rail supports which required hands-and-knees posture to peer under the track in all manner of weather and lighting conditions. In practice, this level of inspection was rare because it was so difficult. Oddly enough, the Vancouver SkyTrain system uses a separate test, striking the support bolts with a tool, and listening for a dull “thud” instead of a clear “ping”. The “thud” indicates a loose bolt requiring closer inspection.

A common indication that there were problems is scuffing of the reaction rail. This was noted at several locations on the line. One does not have to peer under the track to see this early indicator of a developing problem. However, scuffing could also result from minor clearance problems with specific cars and this would not necessarily be interpreted as a location warranting detailed reaction rail review, especially if the marks had been seen repeatedly.

The most damning item is in the TTC’s own Maximo defect tracking system as reported by an inspection team two weeks before the derailment (July 9, 2023). The item highlighted below shows the reaction rail was “raised 1/2 inch on the approach end”. This was a defect serious enough to be visible without the usual difficulty of inspecting under the reaction rail. A related oddity is a two-week gap in reporting of any further problems leading up to the derailment.

In summarizing the investigation at the September meeting, TTC staff stated that the “immediate cause” of the derailment was the failed anchor bolts. Further, the consultants had recommended that if the SRT were to resume operation through November, then all of the newer bolts installed from 2016 onward should be tested and retrofitted as necessary. This work would have required “time well beyond the planned closure date”, and so the line remained closed. (See meeting recording.)

The estimated scope of this work implies a pervasive problem that was either undetected or whose potential severity was not understood, or worse ignored.

An important distinction here is that the term “immediate cause” has morphed into “root cause”. No matter the frequency of track inspections, the loose bolt problems would not be detected because they were not visible.

A further concern is the manner in which consultant reports were quietly posted on the TTC’s website with no announcement in November and December 2023. My coverage of them was the first that some TTC Board members I have spoken with knew about them.

The documents are posted under the Projects page for the future of Line 3 SRT replacement service, hardly a location one would look for technical info on the derailment. Three of the reports were posted in mid November and one in December. It is easy to verify that they were not there earlier by looking at Internet archives for the page on October 2 and December 7, 2023. The first three reports went up almost two months after the Board meeting, not “a few weeks” as expected. However, there was no media release about them nor were they brought to the Board’s attention.

At the September meeting, Councillor Matlow asked whether there could have been a reduction in maintenance or negligence due to the anticipated shutdown of the line. The Gannett-Fleming consultant replied that there were multiple possible causes for the bolts coming loose, but did not address the frequency of inspections.

Staff and consultants reiterated that inspections for problems of loose bolts were very difficult and they would generally not be spotted. It would not matter how often a walking inspection passed potentially defective reaction rail mounts because these were not visible. Indeed, there was an inspection on the morning of the derailment that found no issues.

The Network Rail consultant mentioned marks on the reaction rail surface in passing, but then talked about the impossibility of seeing bolt problems because they are under the reaction rail, and movement was seen only with a train passing. He also said that issues were being reported and fixed, but this is contradicted by the Maximo logs which show a reaction rail lifted 1/2 inch at the site two weeks before the derailment (see above).

One major problem with the Maximo records is that there is no explicit log of repairs made in response to problem reports. Moreover, the consultants noted that almost all issues were logged with a relatively low priority for repairs. I attempted to FOI the repair work orders. However, the TTC advised that the only record was that a defect report was closed, and that there was no information on the actual repair work. If true, this makes post-incident review of the nature of repairs, if any, impossible.

In September, Matlow asks whether there was an increase in maintenance on the aging system. Staff replied about the 2016 plan to replace the anchors which was well-intentioned, but as we know from the reports there were design and installation issues that eventually caused the failure.

Councillor Holyday pursued the anchor design issue. The replies mentioned that there were other locations with scuff marks but mostly from different causes. There was no mention of a problem, flagged by consultants, of repairs that created a weak spot due to cuts in both layers of the reaction rail at various points including the derailment site.

Matlow asked CEO Leary about how the TTC will prevent another accident, and Leary talked briefly about changes already underway and lessons learned. He then mentioned a planned November report, but this was the unfunded capital projects report, not a more detailed SRT report.

Leary pivoted to the Line 2 trains and signal system, and funding problems that could lead to shutdowns. He explicitly mentioned avoiding having old vehicles in service in the future. This ignored his original support for rebuilding Line 2 trains for a 40-year lifespan, and of keeping conventional signals because ATC would have been incompatible with these trains. Now he has changed his position.

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The Unhappy State of SRT Track

On July 24, 2023, at about 6:43 pm, a southbound SRT train derailed south of Ellesmere Station after snagging the reaction rail. This event lifted the rear truck of the car off of the track and also caused it to break away from the rest of the train.

The detailed investigation reports were quietly posted on the TTC’s website, and I wrote a summary of them at the end of January:

I filed a Freedom of Information (FOI) request with the TTC at the beginning of 2024 for “track inspection reports and work orders” for the SRT between June 1 and August 31, 2023. The reason for the extended cutoff date was to pick up any inspections and repairs that took place after the derailment.

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Scarborough RT Busway Funded in Mayor’s Budget

On February 1, 2024, Mayor Olivia Chow announced her version of Toronto’s 2024 operating and capital budgets at Scarborough Town Centre Station. There are many parts to this budget, including a slight reduction in the proposed tax rate, but the location of the event was no accident.

After much hand-wringing, political gesturing and activism by would-be users, the uncertainty over the busway in the former Scarborough RT right-of-way is gone. Toronto will pay for the project, and the delaying tactic of waiting for provincial funding is over. The text below is from the Mayor’s proposed budget at pages 35-36.

This is a fairly common shuffle of funding allocations between projects, something that is relatively easy because:

  • the amounts involved are small on the scale of the overall capital budget,
  • some of the spending is beyond 2024, and
  • the primary source is a placeholder for future as-yet uncommitted work.

What is needed now is a sense of urgency by the TTC to make every possible change in their project timetable to get things moving now. This could include:

  • Identifying work that can proceed without the mini Environmental Assessment known as a “TPAP” that will consume six unexpected months. Obvious candidates for this are the removal of existing SRT infrastructure – track, power, lighting – and demolition work at Lawrence East Station so that buses can pass through the station.
  • Examining whether the project can be split into south and north stages with the Lawrence to Eglinton section opening first. This would give some of the busway’s benefit including direct access to Kennedy Station as early as possible.

A change in focus is needed from delay, a common tactic in the Tory era to sweep budget problems under the rug, to creating the most expeditious project plan.

Transit planning should be about ambition and what we can achieve, not endless excuses and the deadly words “Tomorrow and tomorrow and tomorrow …”.

The Scarborough RT Derailment Technical Reports

Back in September 2023, TTC management presented an overview of the investigation into the July 24, 2023 accident that marked the end of the SRT’s life. See also my article Line 3 SRT Replacement Service and Derailment Investigation.

At the time, detailed reports from the technical investigation were supposed to appear in “a few weeks”, but there has not been any public presentation of this material to the TTC Board.

To my surprise while hunting down reports about the Scarborough RT busway, I found the derailment investigation reports well hidden on the TTC’s site. To see them, you have to:

  • Go to the Projects and Plans page which is accessed through a footer menu on every TTC page. Yes, right down at the bottom.
  • Scroll down to The Future of of TTC’s Line 3 Scarborough (SRT).
  • Click on View Details.
  • Scroll down within that page to News Releases, Reports & Community Updates
  • Open that section and scroll down to November 16, 2023 (there is also one report listed under December 11, 2023)

Here you will find links to the following reports (which I provide here to save you the bother of chasing through the path above). The dates of the reports are shown together with those for earlier drafts in the change logs, where present.

There is a lot of reading here, but the reports are more thorough and informative than the brief TTC overview since the accident. An important distinction the reports reveal is the degree to which identified issues were not at the single derailment site, but common to other parts of the line and to TTC maintenance practices.

Various reviews concluded that the problem lay with the reaction rail mounts and the ability of segments of this rail to move due to forces from the linear induction motors (LIM) on the SRT trains. Several factors contributed to this including:

  • The inherent tight clearances of the LIM design,
  • variations and errors in the selection and installation of reaction rail supports and rail components,
  • an inspection scheme that underrated the severity of problems and the necessity for prompt repairs,
  • the difficulty of inspecting reaction rail mounting hardware, and
  • the need for training of inspection and maintenance staff so that they understand the behaviour of track systems and the failure modes that they must prevent.

Of particular concern is that a reaction rail defect was reported two weeks before the accident at the derailment site, but it was assigned a low priority in the maintenance hierarchy likely because the severity of the problem was not understood.

There are lessons here for maintenance practices in general and I cannot help thinking that the recent detailed review of subway track geometry, resulting slow orders and repairs is partly in response to the problems discovered on the SRT.

I know that readers will not have time to plough through the full reports, but they contain details beyond what I have included here for those who are interested. This article is a summary of the main points together with an introduction to the SRT propulsion technology to put the other material into context.

Source: Hatch LTK Report
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Will There Ever Be A Scarborough RT Busway?

At its meeting of January of January 25, 2024, the TTC Board received an update on the status of a busway in the former SRT corridor.

The news was not good. For various reasons, the opening date for this facility has slipped to 2Q2027. This is quite a change from the original plan for construction through 2024 and 2025 with a year-end opening, roughly 18 months sooner than the updated projection. Here was the plan back in April 2022 when the project was approved by the Board. At the time, the assumed shutdown date for the SRT was mid-November 2023.

TTC Project Chart for Line 3 Bus Replacement Construction, April 2022

The Board’s discussion was unusually heated, and much criticism fell on TTC Management for an unplanned delay required to conduct a Transit Project Assessment (aka TPAP) even though the corridor is not changing use. The problem lies with planned acquisition of new lands to provide station and corridor access, and they are subject to a review including for cultural/archeological purposes. (Detailed station plans appear later in this article.)

Construction will also require a barrier between the busway and the adjacent GO line because Metrolinx wants to protect from buses accidentally coming onto their corridor. This adds cost, but should not substantially affect the construction schedule.

Total cost is now forecast at $67.9 million, up $12.2 million from the earlier estimate of $55.7 million which is part of the TTC’s 2024 Capital Budget. Of this, $4.3 million is due to the Metrolinx barrier, and $4 million goes for a grab-bag of items that appear to have been omitted in the original estimate. This increase is compounded by other cost lines which are calculated as a percentage of the base.

A far more important source of delay was the foot dragging by Council and the former Mayor about funding the design work which should have been finished by now, but sits at the 60% stage. Essentially Council sat on its hands crying out for Provincial money as part of the subway extension project, and the busway just sat waiting for aid that never arrived from Queen’s Park.

There has certainly been no sense of urgency to get design finished and construction underway as quickly as possible.

The delay, cost increase and a sense that travel time savings might be less than expected have combined to raise the question “why do it at all”. This can be a self-fulfilling prophecy if those responsible for the project, including the politicians, really did not have their hearts in the idea. There is no quicker way to sandbag a project than to deny critical funding, watch the price rise and the due date vanish into the misty future.

While awaiting a formal funding approval, the TTC will redirect $15.2 million from other capital projects to pay for enabling works and property acquisition. This can proceed in parallel with the remaining detailed design and TPAP.

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Analysis of 903 STC Express: September-December 2023

This article is an update to my review of the 903 Express bus that replaced the Scarborough RT. The previous article here: Analysis of 903 STC Express: September-November 2023.

Additions in this round:

  • Data for December 2023
  • Performance of the 903 service to Centennial College east of STC (Scarborough Town Centre)
  • Travel times between STC and Ellesmere & Midland
  • A review of terminal layover times at Kennedy Station
  • The screenlines for arrivals and departures at Kennedy Station have been moved from Eglinton at Midland and at Kennedy to points on Eglinton just east and west of the loop entrances. This ensures that any delays at the intersections are counted in travel time, not in terminal time. The change has been applied retroactively to charts for September through November.

Correction: References to a 934 Progress Express should have been to route 913. This has been corrected. Thanks to a reader for pointing out this gaffe.

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TTC Seeks Track Engineering Consultants

On November 16, 2023, the TTC posted an RFP (number P58PW23631) on the Bonfire bidding website for “Track Maintenance Consultant Services”.

The short description, on the title page, is:

The Scope of Work of this Contract includes, but is not limited to the provision of Consulting Services specializing in rail transit to provide track and structure engineering support.

This caught my eye because of the SRT derailment that shut down that line prematurely earlier this year. Although TTC management stated that the full report on this incident would come out “in a few weeks”, it is now mid-December and the report has not been released.

In the September report to the TTC Board, the cause was cited as loose bolts holding the reaction rail which allowed it to be pulled upward by magnetic forces and collide with the train. What was not explained was how the condition of the track reached a point where this could happen.

Recently, the City’s Auditor General reviewed the practices of Streetcar Overhead maintenance, and found them badly wanting. On questioning at the Board meeting, the TTC’s head of infrastructure acknowledged that Streetcar Overhead was likely the worst department on that count, but it was not the only one. This begs an obvious question: what other TTC departments are not producing top quality work and what is the effect on service and safety. A second equally important question is how did TTC practices decline.

We hear a great deal about system safety with homeless people living in the subway, and panhandlers (or worse) harassing passengers, but the context for discussion is that these problems originate outside of the TTC. Is there a generic problem with maintenance, and hence with safety and reliability, within the system itself?

The first of a series of goals here is “Increase passenger and overall system safety”. Another goal to “Increase competence and capability of Track Maintenance and Engineering staff” is equally troubling.

Through the entire Scope of Work is a sense that much needs to be improved within the TTC’s subway track maintenance activities.

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Analysis of 903 STC Express: September-November 2023

This article is a preliminary look at the service offered by the 903 express bus which replaced Line 3 SRT.

Until Saturday, November 18, the 903 buses provided very frequent service between Scarborough Town Centre and Kennedy Station. On Sunday, November 19, eight other routes were extended from STC to Kennedy Station, the 903 was extended to Centennial College replacing the 134/913 Progress bus, and much existing service on route 903 was reallocated to the extended routes.

I will review the other routes serving this corridor in early 2024 when they have accumulated a few months’ experience.

Travel Times

The charts here show how travel times between STC and Kennedy Station have changed over the past three months. The screenlines for these measurements are located:

  • Leaving STC Loop
  • Just north of Eglinton on Midland and on Kennedy

Note that this excludes time spent navigating roads and construction near Kennedy Station, and any time spent in STC Loop. I will review terminal operations when more data for all of the routes in this corridor have accumulated.

The charts below show monthly data, by week and hour, with North/Eastbound service on the left and South/Westbound service on the right. Note that there are no data for September, Week 1 because the service was provided with untracked extras until the schedule change on Labour Day weekend.

The solid lines show the average headways, and the dotted lines show the standard deviation, a measure of the scatter in the values. The closer the SD values are to zero, the more reliable the service is.

In the early weeks of operation, the transit priority measures were not in place, and service was more affected by traffic sharing the road. This settles down by November, although some peak period effects are still visible.

The TTC had anticipated that a trip between Kennedy Station and STC would take 15 to 18 minutes depending on conditions. Considering that the times shown below do not include access time to and from terminals, the service is close to the TTC’s target.

Service from November 19 Onward

After November 19, the 903 STC Express became more typical of other routes with less frequent service. Variations show up that are similar to other parts of the system. The charts below show headways westbound at Progress and Markham Road, and northbound from Eglinton and Kennedy for the last two weeks of November. The scatter of data points shows the type of service that someone waiting for a 903 bus would experience.

  • Some data are missing on the morning of Friday, November 24.
  • Some of the wider headways (dots higher on the charts) have no correponding short headway (dot near the horizonal axis). This indicates that a bus was missing, as opposed to two buses running close together after a long gap.
  • The weekend charts at the south end of the line include data for the early part of the month when 903 service was much more frequent.
  • Although much of the weekend service stays close to the target headway, there are data points showing wide gaps where a bus was missing from the service. This is a concern for service east of STC to Centennial College.