Also Ben, in the baseline study we need an air quality monitor network along the Led/Coal/Zuni corridor.  (I am not for two way streets as a solution as that would only increase the air quality and noise problem - just look at Zuni now.  There are other solutions like enforcements, inspections, roundabouts, dead-ends, bumps, etc. imo.  We can explore these.)

Air quality here is an increasing problem as my family and friends can testify.  Our young  kids, who are more susceptible to asthma complain of breathing problems in the rush hours of traffic produces a steady stream of CO plus when the increasing amount of big diesel powered vehicles pass by our house at Coal and Richmond it is gaging. If prospective buyers knew of all this before probably might not move to this area of Nob Hill.  I have to clean the ceiling fans blades of the soot more often now than before the rebuild.  We are breatbreathinging in that stuff daily.  

Our location is on an upgrade of Coal where vehicles are in a steady acceleration mode (often drag racing) which produce much more pollution than normal.  Add to that our corner is a busy turn onto Coal which means the acceleration increases as vehicles move from a stand still to a higher speed in three directions.  The pollution is bad here.  We need to include this problem in the baseline study.