Hackett said the city models were likely to be slowly-changing stuff. Human drivers also gather data from nearby vehicles. That's the point of brake lights, tu

Hackett said the city models were likely to be slowly-changing stuff. Human drivers also gather data from nearby vehicles. That's the point of brake lights, turn signals, and rearview mirrors, for example. And, yes, human drivers also spoof that data: mostly by forgetting to use those signals correctly.