Based on what I saw from researching this piece, many of the drivers in the accidents are professional truck drivers, who typically have a lot more experience and more stringent driver's education requirements. It seems that in a lot of these collisions they simply don't see the cyclist (note that many are during right turns, when a cyclist would fit in the blind spot of a truck). This happens to me constantly, both on my bike and driving a car (not being able to easily see a person on bike approaching from the back right part of my car). I think protected bike lanes would help mitigate that risk in that situation, as an example. And yes, it'd be nice if we didn't require so many streets and vehicles in our dense cities. Vehicles require a lot of space and it'd be a great public benefit if we could use that space for people and figure out a different, efficient way of move people and goods around a city.

Some automatic braking systems recognize pedestrians, and probably recognize cyclists. More of this would be better: Maybe transponders on bikes that activate automatic braking when cars get too close. Sensors on bikes that use loud horns and strobes to warn drives that approach too close. Etc.

New York is an interesting case. While e-bikes are inexpensive and plentiful (and lo-tech, using lead-acid batteries) in China, they are expensive, over-engineered, and rare in the US, except in New York, where I see dozens of e-bikes, most of them inexpensive Chinese-style bikes, on the streets every time I'm in Manhattan. I think this is a sign of people who would not otherwise bike finding bikes are a practical way to get around.