The transport thing baffles me. Here in the UK, improved public transport would be funded either by levies on new development (known as Section 106, being repla

The transport thing baffles me. Here in the UK, improved public transport would be funded either by levies on new development (known as Section 106, being replaced by the Community Infrastructure Levy), or by supplemental business rates (that's how London Crossrail is happening). The commuters to the new developments get the transport they need, and it benefits everyone else as well. Why doesn't that happen in SF?