> How would one go about finding that data? The autonomous car companies have a lot of the data, since they've run the same cars with drivers extensively. They

> How would one go about finding that data? The autonomous car companies have a lot of the data, since they've run the same cars with drivers extensively. They can see the differences in rates-of-situations between cars-working-autonomously, and cars-with-drivers. Given the long periods of operating with autonomy-plus-backup-driver, they also have stats on how often an in-car driver overrides the car, and exactly why. Cities also can & should independently collect such data. Some big-city buses are already equipeend with a photo-ticketing mechanism for immediately recording, & citing, and cars illegally parked in their paths/pickup-area. Emergency vehicles should have the same. > This doesn't comfort me. Well, I can't make you comfortable if you've got free-floating paranoia about abuses by the powerful. There are many such abuses! But I can point out that the exact same rational comparative criteria should apply before making a tangible policy decision about the use of the shared roads. We shouldn't be ruled by imaginative worries extrapolated from other insecurities, but rather real measurements of how often a "send a request to clea roads for emergency vehicles" is broadcast, whether each use has a recorded & verified legitimate justification, whether such broadcasts save lives versus not-using-them, etc.