>The SF transit situation is the direct consequence of a failing tax base. The wealth of the local tech industry is not "trickling down" to improve city infrastructure, in proportion to the industry's growth.
I'm not sure this is true. The city budget has grown substantially, now ~$9B [1].
The problem is we don't spend it on transit infrastructure, and when we do invest, we get financially mismanaged projects like the central subway [2].
[1] http://modernluxury.com/san-francisco/story/san-franciscos-i... [2] http://www.sfweekly.com/sanfrancisco/covering-their-tracks-t...