The only way autonomous cars will work is when they are driven on pre-certified roads. And the cars continuously report back what they see to update the certif

The only way autonomous cars will work is when they are driven on pre-certified roads. And the cars continuously report back what they see to update the certification. Combined with traffic monitoring cameras that can keep a road section's certification updated. So just like most cars are to be driven on paved roads, reliable autonomous cars will need to be driven on roads with good visibility of lane markings. And road construction or road hazard cones will need to be electronic, so they can give the car computer unambiguous instructions (such as "shut down until driver manual control is confirmed").