I'm not sure I really agree that a bus is more efficient than a carpool ride with Uber, Lyft, or Sidecar would be. Often I've noticed a bus full of people are going a few miles (Sunset neighborhood to Downtown SF), but the bus makes a stop at every small intersection for 1-2 people - inconvenient for the masses.

I live in Nob Hill, SF. If I wanted to go to the Mission, it's quite a wait for the Van Ness bus that goes to the Mission, and it takes a long time to go 2 miles because of the numerous stops the bus makes.

If instead, I were to take a UberPool/Sidecar Shared Ride, it might be $1 or so more, but I'd get there in a fraction of the time (no walking to the bus stop, no waiting for the bus, no numerous stops).

Also, I'm wondering if the the capital expenditure of the car vs the bus makes the car the preferred choice. Eg a Muni bus costs $700,000, but a car for UberPool or others is $10,000-$10,000.

I'm certainly not against buses, but for many cases, the technology here can provide smarter, faster transportation. Imagine this: an UberBus/Sidecar Shared Bus or so, that takes just as many people as a full bus would, but without the in-between stops.