Bill Ford gets it

Already, he says, daily commutes in Beijing can last five hours – and that’s when motorists don’t bog down in multi-day traffic jams as they did last summer.

“People in Los Angeles and New York think they’re in gridlock,” Mr. Ford says. “It’s nothing like what they have seen already in other parts of the world.”

As more of the world’s population moves into big cities, the answer to traffic congestion won’t be building more roads, Mr. Ford says, because there won’t be any space.

“This is going to be a real drag on global growth unless we solve it,” he says

Gridlock causes depressions. Solution? Robocar technology