The traffic lights communicating with vehicles automated or not is sinister. That would get attacked ASAP, DoS or otherwise, and crashes would happen. A vendi

The traffic lights communicating with vehicles automated or not is sinister. That would get attacked ASAP, DoS or otherwise, and crashes would happen. A vending machine provides a keyboard interface for making selections. You can integrate NFC to it and require the payment in between the selection and dispensing. Allowing automated connections to public devices is not a useful idea.