Just to add to this: buses are so bad that you actually will have less pollution if all the bus riders just get cars and drive themselves. This isn't true if t

Just to add to this: buses are so bad that you actually will have less pollution if all the bus riders just get cars and drive themselves. This isn't true if the bus is a nice coach and all its seats are full, and it's driving all these people from one place to another fairly distant place, but for city buses it absolutely is because of their low-speed, herky-jerky operation and the fact that they're rarely full and frequently mostly empty.