That "tiny percentage of the time" is roughly once every 15 minutes when done well, and transports (in my city) roughly 150 people during rush hour. Every bus

That "tiny percentage of the time" is roughly once every 15 minutes when done well, and transports (in my city) roughly 150 people during rush hour. Every bus lane you build is ~800 cars you don't have to deal with in traffic, assuming an approximately two hour rush hour