It is amusing watching some of the discourse over the implications if this project was to actually succeed in its goal of making cities as they where before the Eisenhower act demolished downtown's[0]. There is some research[1] coming out of the University of Colorado showing that by prioritizing bike lanes, all road users end up safer. It would then only logically conclude if you removed cars that it would only cause further advancements in safety.
[0]https://www.archdaily.com/981425/did-a-highway-kill-the-city... [1]https://www.youtube.com/watch?v=YwYeNz1jCkM&t=8s