Debates on the effect of Metrolinx service expansions often turn on noise and vibration effects, the degree to which any new or modified service will change the communities through which lines pass. Nowhere is this more striking than in Toronto’s Riverside district where an existing three-track GO corridor will be widened with a fourth GO track plus two Ontario Line tracks.

Reviews of the effects along the GO and OL corridor are hundreds of pages long for those who have the stamina to dig through appendices in so-called environmental reviews, but the material is inconsistently presented. Three separate projects affect this corridor, but no study considers the combination of three services.

This is a major oversight, and it hobbles any public consultation. Metrolinx appears either unable to answer valid questions about the effects of new services, or worse unwilling to reveal information that they should already have. Past experience makes communities distrust what Metrolinx says especially if “consultation” sounds more like cheerleading for decisions made long ago by sage transit wizards.

Updated 4:15 pm: Due to an error in a spreadsheet, the summary counts are off a bit because existing service was included in future totals. This has been fixed.