[mulmen]

I'm not sure you can attribute HOV lanes on an interstate to the city of Seattle. Most of the I-90 bridge is not even in the city limits. In this case maybe you mean "Seattle" as in "Seattle Metro area" which would be fair. ST + Seattle Metro transit seem to be doing a good job considering the realities of transit around here.

[Bensch]

Many of these (on state and interstate highways) are paid for by Sound Transit. It's more proper to say "Seattle area", but it's largely our tax dollars.

[beisner]

You're right, of course. I don't really know how the city coordinates with the state, but I'd assume that there's certainly collaboration w.r.t. main conduits of traffic into the city, as well as with the greater Seattle metro area.