At its November 22, 2023 meeting, the TTC Board will consider a report New Subway Train Procurement and Implications for Line 2 Modernization and Future Growth which goes into considerable detail on several related capital projects related to renewal of both Line 1 Yonge-University-Spadina and Line 2 Bloor-Danforth.
The TTC is in a very difficult position for capital planning because for many years it understated the size of the capital backlog and also tended to treat related projects, or even components of the same project, as separate items. This led to low-balled estimates of total costs and, in some cases, piecemeal execution of projects. Now that we see “all in” costs, the problems facing the system are perceived more seriously, but just at a point when new money to invest in existing subways is hard to find.
Although the TTC called for proposals for a replacement of the Line 2 fleet of T1 trains, with add-on provisions for system expansion, this was cancelled in June 2023 due to lack of funding commitments from either the Provincial or Federal governments.
The report proposes three scenarios depending on when new trains and facilities would be delivered and built at total costs ranging from $8.5 to $10 billion including inflation. Very little of this has committed funding.
This is not just a question of buying new trains, but of building, or renewing, many facilities:
- Greenwood Carhouse dates back to the opening of the BD subway and needs to be modernized and rebuilt to handle a new fleet.
- The signal system on Line 2 dates to the 1960s and must be replaced both to maintain reliability, improve operations and provide for service growth.
- Additional trains for both Lines 1 and 2 will require more storage including a major new maintenance facility for Line 1.
The funding sought by this report does not include companion upgrades that have been flagged in the overall capital plan:
- Running more frequent service requires more traction power on top of state of good repair work needed for both subway lines’ power systems.
- More service means more passengers, and some key stations cannot handle additional demand between the platform and street without additional circulation capacity.
Moreover, there are major projects beyond subway fleet renewal that are either partly or totally unfunded even at the City level, never mind its partners:
- Ongoing replacement of the bus fleet including electrification
- Any provision for service growth to improve transit coverage and encourage a shift to transit riding especially in areas where it is not competitive with auto
- LRT lines in the waterfront or Eglinton East
- Platform screen doors to prevent access to track level
Even if the fleet and signal renewal for Line 2 finds much-needed financial support, this is only the beginning of the TTC’s search for capital, and I have not even mentioned the need for ongoing state of good repair.
In the short term, the TTC has been “saved” from a capacity crisis by the covid pandemic and the loss of subway riding. Only a few years ago, the concern was not empty trains, but platforms full of riders who could not move. Although the subway is not back at full demand, recovery is well underway. Here are historical figures and projections for the future from the report.
2041 might sound a long way off, but in the scheme of subway fleet planning, it is fairly near given both the lead time to buy new trains and their 30-year design life. What we plan for today will affect the system for decades to come.
This forecast will be updated with results from the current Transportation Tomorrow Survey and other planning work to provide an outlook to 2051.
These projections translate to service requirements on the two lines. Note that this is likely based on the historical ratio of peak to all day demand. Although work-from-home may shift some riding away from peaks especially on Mondays and Fridays, this would still leave the midweek days facing crowding. It would be dangerous to make plans for lesser demand as a short-term cost saving measure.
Line 1 has already been converted to Automatic Train Control (ATC) with moving block signalling that can handle more trains/hour. Note that the projected Line 1 service is at 36 trains/hour, or every 100 seconds. This will be challenging to sustain especially at busy stations and terminals.
The current signal system on Line 2 cannot support headways below about 140 seconds, the pre-pandemic peak service level on that route. This is equivalent to 25.7 trains/hour which gets us only to the 2032 projected requirement.
This translates into the following requirements for a larger fleet.
The 55-train replacement for Line 2 where there are now 61 trains is based on the capacity with new trains (similar to those now on Line 1) with about 10% more room than the old ones. This finally addresses the excess of T1 trains in the fleet ever since the TTC decided to run Lines 1 and 4 entirely with new “TR” trains and ATC, and relegated the T1 fleet to Line 2.
The Metrolinx options are for the Richmond Hill and Scarborough extensions. Growth trains are to permit the operation of more frequent service than the existing fleet can support.
Note that Line 4 Sheppard is not included here as it has a dedicated set of six 4-car trains that can handle projected growth on that line. Depending on the extension of Line 4, a future procurement of trains and storage facilities could be required.
In the remainder of this article, I will describe the scenarios and implications of choices the TTC, Council and its funding partners will make in the near future.
Recommendations
The report recommends that:
- The TTC prioritize funding in the capital budget for:
- New subway cars and related projects with a cost of $3.2 billion as the City’s share.
- A 30-year state of good repair overhaul of the T1 fleet.
- Risk mitigation activities for Line 2 related to fleet and signal system life extension.
- Subject to confirmation of funding, the CEO issue an RFP for new trains needed on the existing Line 2 with options for extensions and demand growth on the system.
This will have effects not just for subway planning but for other TTC capital project funding and timing.
Continue reading