Which is exactly what Google did.[0][1] They built an entire fake city to test in: "Castle", California. [0]: https://www.theatlantic.com/technology/archive/20

Which is exactly what Google did.[0][1] They built an entire fake city to test in: "Castle", California. [0]: https://www.theatlantic.com/technology/archive/2017/08/inside-waymos-secret-testing-and-simulation-facilities/537648/ https://www.theatlantic.com/technology/archive/2017/08/insid... [1]: https://www.wired.com/story/google-waymo-self-driving-car-castle-testing/ https://www.wired.com/story/google-waymo-self-driving-car-ca...