Yes, a light on the car that isn't ever going to move at 4 way stop with pedestrians around like near the school. That way everyone else can still somehow make it through the intersection without crashing or killing anybody. I think robots are great but they need to be programmed to get things done as well. Take tailgating, they should actually tailgate to improve aerodynamics knowing their reaction time and braking ability doesn't require a standard 2 sec following distance.
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