While I don't disagree, this is also a city that has whole lanes on major streets reserved for cable cars. The city isn't exactly known for making decisions that drive efficiency.
In case it's not clear, I'm refering to California st starting downtown and going all the way up the hill.
Car lanes in the city consume a significant public resource (space) and encourage negative externalities (noise, heat, air pollution, etc.). They should absolutely be replaced with more space efficient options: tram tracks & bike lanes.