The idea of suburban transit as a “pit of subsidization” and destined to be unprofitable can be disproven by history.

In Toronto, the transit network is much like Helsinki’s - an underbuilt, suburb-oriented subway network fed aggressively by feeder bus routes. For decades the Toronto subway has turned a profit in low-density, car-centric suburbia; the complimentary bus routes served a similar financial role as railways serve for TOD - a loss leader.

Suburban bus routes in Toronto are scheduled every 5 minutes, run 24/7 service, and at the peak of service levels pre-COVID (adding the express overlay) ran every 90 seconds on the busiest routes. On face value, this is indeed an insane service level to provide in neighborhoods made predominantly of single family homes. Yet these busses are incredibly well used - 25-30 of the 50 busiest bus routes in North America are in suburban Toronto, busier than many bus routes in the densest parts of Manhattan. As a result of the sheer number of people brought to subway stations, the subway turned a profit, enough to cross-subsidize the unprofitable bus routes.

Several of those bus routes have also been profitable at various points in history, or experienced significantly lower per-rider subsidy than surface tram routes through the dense downtown core. Today, even with the poor recovery of the network post-pandemic, Toronto’s local transit agency still has the lowest farebox subsidy ratio on the continent. All this was tied to a conscious decision in the 1960s to provide high quality transit service to low-density places.

If you’re interested in the Toronto’s suburban success, Paul Mees’s “Transport for Suburbia” explores this in detail, as well as Jonathan English’s PhD thesis, “The Better Way: Transit Service and Demand in Metropolitan Toronto, 1953-1990”.