Artificial Intelligence meets the city
There's a lot you can do with an extra hour. Work out, cook a meal, re-watch a Game of Thrones episode. Or maybe...you're one of the 1.5 million Canadians who needs that much time just to get to work. Traffic congestion is an issue across the country. Upgrading public transit and building better bike corridors are part of the solution. But engineers are also looking at how to make something much smaller, a lot better: the traffic light. CBC's Alex Zabjek has more.