Here is the city's info: http://www.ci.berkeley.ca.us/bicycleboulevards/ http://www.ci.berkeley.ca.us/bicycleboulevards/ The boulevards do not actually block o

Here is the city's info: http://www.ci.berkeley.ca.us/bicycleboulevards/ http://www.ci.berkeley.ca.us/bicycleboulevards/ The boulevards do not actually block out a section of the road for bicyclists. They are entire roads that optimize for low-speed neighborhood traffic where cars don't need to blast past cyclists. Based on your description of your situation, short-distance traffic (people entering and leaving their homes) would use Mimosa along with cyclists. Long-distance car traffic would be free to use the full two lanes of Smith at high speed without dodging cyclists.