Sebastian, a mechatronic pedestrian, will step out into traffic to test whether the robot cars will sense him and hit the brakes to avoid running him down, Sweatman said.

'Hyper-accelerate'

"We believe that autonomous technology is going to be extremely attractive to consumers," Sweatman said. "So it's going to have to be deployed as quickly as we reasonably and responsibly can. We designed M City to hyper-accelerate the process."

Sweatman is also director of the Mobility Transformation Center, formed by academic, government and corporate sponsors, including General Motors Co., Ford Motor Co., Toyota Motor Corp., Nissan Motor Co. and Honda Motor Co.

Automakers have said driverless cars may be on the road within five years. The market for autonomous technology will grow to $42 billion by 2025 and self-driving cars may account for a quarter of global auto sales by 2035, according to Boston Consulting Group. By 2017, semi-autonomous cars that operate in auto-pilot mode, park themselves and change lanes automatically will be available in “large numbers,” the firm said.

Ford has already tested a driverless Fusion hybrid sedan in M City and computer mapped all the streets and structures. The automakers will prove out their own technology on the course, but they are jointly researching issues like legal liability and how robot cars will make ethical decisions when confronted with a crash, said Greg Stevens, global manager of Ford’s driver assistance and active safety research.

"We all compete on a technology level," Stevens said in an interview at M City. "But when it comes to things like regulatory approaches and legal approaches, that’s where you really want to come together and collaborate."

Aerial view of the University of Michigan self-driving vehicle simulated city. (Courtesy of University of Michigan)

Testing alternatives

Until now, tests of autonomous cars have been conducted on public roads or private proving grounds. Automakers study robot cars on old test tracks designed to evaluate how fast traditional cars can run laps or how well they handle with humans at the wheel. Google Inc. has logged more than 1 million miles (1.6 million kilometers) of testing its self-driving cars on Silicon Valley roads and, as of last month, Austin, Texas, highways.

M City represents an alternative to that.

"If you're out on the public roadways, certainly all kinds of really unusual things will arise, but they're only going to arise once," Sweatman said. "We like the idea of creating challenging situations that we can reproduce as many times as we want."

Once a technology is proved in M City’s controlled environment, it can be tested on public roads, he said. Automakers and the university already have 3,000 “connected cars” on the roads in Ann Arbor, capable of communicating with one another and with infrastructure such as traffic lights. By 2020, there will be 29,000 connected cars tested on public roads in southeastern Michigan, Sweatman said.

Google 'strutting'

Autonomous cars could eventually eliminate 80 percent of the accidents that lead to 33,000 deaths on U.S. roads each year, Senator Gary Peters, a Michigan Democrat, said at the opening of M City today.

Peters said he rode in a Google self-driving car about a year ago on a trip to California.

"The Google folks are kind of strutting their stuff," Peters said. "They've got nothing on us. This is the center of the universe. This is Michigan, it's not California. We're not going to let Silicon Valley take this technology."

Google has inquired about testing its driverless cars at M City and would be welcome, Sweatman said.

So-called "Leadership Circle" sponsors, such as GM, Ford and Toyota, get first crack at the track. They are paying $1 million over three years to gain top priority, Sweatman said. Affiliate sponsors, who pay $150,000 over three years, come next. Google is not yet a sponsor of M City, he said.

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