A radio transmitter hangs from a traffic light pole as it transmits to equipped commuter buses on Redwood Road, part of an effort to improve safety and efficiency by allowing cars to communicate with the roadside infrastructure and one another, Friday, Sept. 6, 2024, near Salt Lake City. (AP Photo/Rick Bowmer)

A commuter bus equipped with a radio transmitter approaches a connected traffic light on Redwood Road in Salt Lake City, part of an effort to improve safety and efficiency by allowing cars to communicate with the roadside infrastructure and one another, Friday, Sept. 6, 2024, near Taylorsville, Utah. (AP Photo/Rick Bowmer)

A commuter bus equipped with a radio transmitter passes a connected traffic light on Redwood Road, part of an effort to improve safety and efficiency by allowing cars to communicate with the roadside infrastructure and one another on Friday, Sept. 6, 2024, near Taylorsville, Utah. (AP Photo/Rick Bowmer)

A commuter bus equipped with a radio transmitter passes a connected traffic light on Redwood Road, part of an effort to improve safety and efficiency by allowing cars to communicate with the roadside infrastructure and one another, Friday, Sept. 6, 2024, near Taylorsville, Utah. (AP Photo/Rick Bowmer)

A commuter bus equipped with a radio transmitter passes a connected traffic light on Redwood Road, part of an effort to improve safety and efficiency by allowing cars to communicate with the roadside infrastructure and one another, Friday, Sept. 6, 2024, near Taylorsville, Utah. (AP Photo/Rick Bowmer)