Chipped auto-cruise control for highways

On my local 520 bridge (Governor AD Rosselini), there's a lot of traffic and subsequent frustrations and accidents. What if every car (I know, crazy) had a chip that was seen by a road computer, and the road computer triggered the cars to go into cruise control for a particularly difficult stretch of road, perfectly spaced apart and requiring no brakes? We'd all go broke paying for it, yes, but it would sure be neat and safe.