I can foresee several phases in the development of "robocars". Phase 1 - dedicated lanes for robocars, to mitigate problems with the still-dominant human-pilot

I can foresee several phases in the development of "robocars". Phase 1 - dedicated lanes for robocars, to mitigate problems with the still-dominant human-piloted cars. Robocars capabilities at primitive level, will likely have human-usable controls. Phase 2 - once their safety and compatibility have been established, robocars will freely mix with human-piloted cars. Robocars will accommodate errors committed by human-piloted cars, and will no longer need human control. Phase 3 - robocars dominate the roads, while laws and economic structures (e.g. insurance) will favor robocars. Robocars will have localized coordination capability. Phase 4 - robocars will act in concert over large (metropolitan) distances to smooth traffic flows. Human-piloted cars will become as horses are today - a hobby for the rich. Admittedly, I am mixing adoption phases with technological ones.