Today's cars are unused most of the time But when they're used, most of them are used at the same time - rush hour traffic. If everyone wants to go to work in

Today's cars are unused most of the time But when they're used, most of them are used at the same time - rush hour traffic. If everyone wants to go to work in a car at the same time, you'll still need about as many cars. What's needed is a diversification of working times: if half of the workforce started work an hour later, it would have a huge impact on traffic density and would also make things like shared self-driving cars more realistic.