Most of the major streets in the older parts of Toronto look something like this:

That is, the right-of-way width is 20 meters. The built form lining the street is retrograde. There are 4 lanes for driving cars (sometimes streetcars run in the two inner-most lanes). And 50% of the entire road is allocated to on-street parking. Now to be fair, on-street parking is usually prohibited during "rush hour." So no stopping and parking during periods like 7-9am and 4-6pm.

But I think this approach to traffic management has become far less relevant today. It made more sense when everyone was driving to an office for 9am and then leaving for the suburbs at 5pm. But today, people want to work from home so they can go to the gym at 11am, go grocery shopping at 1pm, and then get a perm at 3pm.

What I find curious about these decisions is that bike lanes seem to get most of the blame for traffic congestion. We say things like, "nobody really bikes in Toronto except for the 2 weeks of the year when it's nice. So we shouldn't allocate valuable road space to them!" But very rarely do people seem to direct their frustrations toward the parked cars that sit on our roads for, what, ~83% of every day?

One approach allows people to go places and the other is dedicated to storage and immobility. This also says nothing about the relative benefits of people biking: it's objectively a more efficient way to move people, it can improve overall traffic flows by taking people out of cars, and it improves health outcomes (saving taxpayers money).

This is not to say that bike lanes don't also impact vehicle road capacity. But it's a question of what's most optimal for moving the greatest number of people. And I would bet you that on-street parking is far more disruptive to overall traffic flows than bike lanes. Parked cars, it turns out, aren't very good at moving people across a city.