Angie Griffin, a trucker of 17 years who hosts a YouTube channel with her husband about the lifestyle of trucking, told TechCrunch she thinks the regulations on the distance needed between safety triangles is appropriate because “vehicles are passing and coming at you at such a rate of speed that the earliest detection is better.”

She said that to accommodate self-driving trucks, her ideal solution would feature warning lights on the trailer of the truck, not just on the cab.

Aurora, like other AV players, doesn’t have its own trailers; it operates via hand-offs of customer trailers, which is standard in the trucking industry. Requiring carrier customers to upfit their trailers with warning beacons would throw a wrench in AV companies’ plans to slot into the current system with minimal disruption, but it could be necessary from a safety standpoint.