Traffic on Las Vegas Strip

FILE - In this Thursday, April 22, 2021, file photo, cars wait at a red light during rush hour at the Las Vegas Strip, in Las Vegas. The trade association representing most major automakers is offering guidelines for manufacturers to advertise partially automated driving systems and make sure drivers are paying attention while using them. The Alliance for Automotive Innovation says its members support the voluntary principles. (AP Photo/John Locher, File)

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