Maybe we will end up with the highways portrayed in tek war and other scifi, where you don't do the driving on limited access roadways but can or have to do it

Maybe we will end up with the highways portrayed in tek war and other scifi, where you don't do the driving on limited access roadways but can or have to do it on side streets. it certainly would be easier to mark visually and electronically limited access routes like interstates. that in turn would make it simpler to create safe self driving cars. still I am not impressed as to where the tech as implemented on roads with current cars is today. they only work in ideal situations, the exact opposite of most safety equipment. its obvious they cannot rely on visual acquisition of objects, Tesla's system failed spectacularly in that area, so what will win out? RADAR? Laser? Combination of both?