Updated February 10, 2019 at 9:00 am: Notes from the Board meeting have been added at the beginning of this article.

Relief Line Business Case

When the agenda was released, the Relief Line report created quite a stir with an apparent shift in Metrolinx’ position on the staging of subway expansion projects. Where “relief” taking precedence over the Yonge north extension only referred to the southern section (Pape to Osgoode), Metrolinx now shows a shortfall in capacity if the northern section (Danforth to Sheppard) is missing from the network.

This prompted a letter from Frank Scarpitti, Mayor of Markham and Chair of the York Region Rapid Transit Corporation Board. The heart of Scarpitti’s objection is that the Metrolinx report uses a mixture of demand models and assumptions to arrive at its conclusion, and that this is out of step with previous studies and approvals.

The Relief Line Business Case Development presentation paints a flawed picture of the ridership modelling work being undertaken by Metrolinx, in conjunction with York Region and City of Toronto staff. The vague and contradictory information being used to update the public on slide 7 regarding Line 1: Ridership Demand and Network Effects has, once again, pitted two critically needed infrastructure projects against one another, namely the Relief Line against the Yonge Subway Extension. This positioning is not supported by the ridership modelling analysis and is at odds with the advice and information presented by Metrolinx at a recent meeting.

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On June 25, 2015, Metrolinx released the results of the Yonge Relief Network Study to the Board. Supported by a Stakeholder Advisory Committee and a Peer Review Panel, the Board endorsed the finding that “With the Yonge North Extension, the Yonge Subway will still be under capacity.”

The Relief Line Update uses a blend of data and methodologies to make broad assumptions about future ridership. Each subsequent ridership model claims to have better information, more detail and more sophisticated analysis. Some models include independent findings and more recently, to our objection, some have been relying heavily on market driven employment and population data, contrary to the required obligation of all municipalities to follow the Provincially-mandated “Growth Plan” numbers.

The Relief Line Update being presented to the Metrolinx Board on February 7, 2019 has, according to Metrolinx staff, blended the findings of at least three different models and does not accurately represent any of the individual modelling analyses. Slide 7 suggests that, in 2041, Line 1 will be below capacity and then over capacity when the Yonge Subway Extension is added. This is completely inaccurate – current Metrolinx modelling shared as recent as January 21, 2019 demonstrates that the Yonge Subway Extension adds a relatively minor number of riders to the peak demand location and, in no case, is it the cause of Line 1 becoming over capacity.

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The facts are that only 20% of the new riders on an extension of the Yonge Subway line would be headed south of Bloor. Ridership growth on Line 1 is directly related to population and employment growth in Toronto. In fact, models show that ridership on Line 1 will exceed capacity regardless of whether the Yonge Subway Extension is constructed. We believe that by promoting the shift of as little as 10% of people from peak hour travel from the Extension to the Richmond Hill GO Line, and by using fare structure and level of service incentives, that substantial relief on Line 1 can be achieved while the Yonge Subway Extension is being constructed.

Modelling also shows that the majority of riders (80%) on the Yonge Subway Extension are headed to Toronto’s uptown employment centres north of Bloor, including St. Clair, Eglinton and York Mills. Furthermore, the Yonge Subway Extension will also serve a large number of Toronto residents that work in York Region Other initiatives are underway, or should be underway, to alleviate Line 1 capacity problems. Metrolinx’s 2015 study concluded that a number of planned and funded initiatives such as Automatic Train Control, more Rocket Trains, GO Expansion, and the opening of the Line 1 extension to Vaughan Metropolitan Centre will add capacity and offload the Line 1 demand.

These are serious challenges to the professional quality of work presented by Metrolinx planners.

The June 2015 report cited here was the Yonge Relief Network Study and it contains the quotation about the subway remaining under capacity even with the Yonge North extension. However, this depends on a number of factors:

• The model year is 2031
• Then-current projections for population and jobs
• Assumed diversion levels for ridership to TYSSE and GO RER, net of demand added by new projects especially the Crosstown LRT at Eglinton

The reported projected that the volume/capacity ratio would have been 96% (2031) over the peak hour meaning that the super-peak would be above the line. The claim that the subway would still have capacity is “true” only on average and with no headroom for growth. Metrolinx planners should have known better to make that statement in 2015.

Metrolinx staff pointed out:

• They are modelling for 2041, ten years later
• The 2016 Census shows that core area employment is growing faster than predicted
• Modelling now includes factors for latent demand and safety considerations at stations and platforms
• If there is no alternate relief in place by 2041, the Relief Line North will be required

Staff also reported that although the Relief Line South approved concept (Pape to Osgoode via Carlaw and Queen) has a positive Business Case, the value is only slightly above 1.0. All six of the options were close to 1 and so the distinction between them is not as strong as the simple over/under status in the report might imply. With only a small positive margin, factors such as cost control and encouragement of Transit Oriented Development along the line will be important to maintain the supposed benefit.

CEO Phil Verster argued strongly that building the Relief Line does not preclude building other projects. His concern is to build more transit and build faster. Metrolinx is looking at (unspecified) new technology and innovation from industry to speed up the process. More than one line could be built concurrently, but the critical point is to open them in a sequence that causes the desired redistribution of demand.

Verster admitted that Metrolinx has not done enough to look at the Richmond Hill GO corridor for its potential contribution to relief.

A Board member asked whether the staff have identified a “tipping point” in safety for their studies. There is not a single value, but rather a variation from one location to another depending on local demand, station geometry and passenger flows.

Unspoken through all of this was the years of delay in admitting that a problem even exists, let alone of doing something about it. GO’s ability to provide relief has been downplayed for various reasons including the need to regrade the south end of the line to make it flood-proof, the winding valley route’s limitation of travel speed, and operational conflicts with CN’s freight traffic that limit GO capacity to Richmond Hill. Meanwhile, candidate John Tory’s SmartTrack campaign claimed that his scheme would eliminate the need for a Relief Line, and TTC projections did not raise alarms about capacity and safety issues until the situation at Bloor-Yonge could not be ignored.

“Relief” will not come from any one line or project, but from the contributions of several.

Financing and deliverability studies will be reported in spring 2019 for the Relief Line South, and a preliminary business case for the Relief Line North will be available by year-end.

This entire exchange shows the problems brought on by oversimplified presentation decks for the Board. In their oral remarks, Metrolinx staff displayed a more extensive grasp of the issues and details than contained in the Powerpoint deck.

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