What is safe for the motorist is generally unsafe for bicycles and pedestrians. Like well-marked wide lanes where you can mindlessly zoom forward with no disrup

What is safe for the motorist is generally unsafe for bicycles and pedestrians. Like well-marked wide lanes where you can mindlessly zoom forward with no disruptions. That's the traffic engineer's definition of "road safety". And that does indeed apply nicely to highways which are roads that only motorists are admitted to. Yet in a city such a "zoom lane" is the direct opposite of what you want. You want trees around, people walking and crossing, bicycles eating up part of the lane, cars parked and cars passing way too close, sudden surprises, and very active, observant, and careful drivers.