HOV is good; HOT is even better. As we saw during the Pan-Am Games, High Occupancy Vehicle lanes were great for cars with three or more people and other designated vehicles. The trouble was that they went largely unused. High Occupancy Toll lanes solve that problem by opening up the designated space to cars that don’t have the numbers but whose drivers are willing to pay for the convenience. Premier Kathleen Wynne has hinted that she’s willing to implement HOT lanes, but has not been specific about where and when. If the U.S. experience is anything to go by, however,...