James A. Popio, vice president of Smithers Rapra and Smithers Pira North America, agreed with most of Mr. Petersen's observations, but added one of his own.
"Getting to full autonomy is going to be tough," he said.
There are excellent reasons to adopt AV technology, according to Mr. Popio. It has the potential to reduce vehicle-related injuries and deaths by 50 to 90 percent, and it could drive cost savings by reducing traffic jams and promoting ride-sharing, he said.
On the other hand, AV systems could add $7,500 to the price of a car, he said.
"How does AV work if only 10 percent of the cars on the road are automated?" he asked. "And how long will it take to produce effective standards for AVs?"
There are no rules, no tests and even no signage for AVs, according to Mr. Popio.
The European Commission established its AV guidance program, GEAR 2030, in January 2016, and the National Highway Traffic Safety Administration issued its Federal Automated Vehicles Policy in September 2016, according to Mr. Popio. But there is no government-defined AV-testing procedure anywhere in the world, he said.