Two important projects will get a hearing before an SFMTA engineering panel tomorrow, and advocates say a show of support is crucial.

First up is a hearing for the third set of 15mph school zones, championed by Walk San Francisco. More than 70 streets are on the latest list. As we’ve written, the 15mph school zone campaign is part of a groundbreaking citywide initiative pushed by Walk SF to implement safe speed zones around 200 schools, and comes just a few weeks before Walk to School Day on October 5.

The second item to convert Haight Street between Octavia and Market into a two-way street is a project that could face some opposition, but is being pushed by pedestrian, biking and transit advocates as a much-needed measure to calm traffic, improve walking conditions and speed up Muni service on the 6 and 71 lines. The plan would also give us San Francisco’s first red bus lane.

You can read the Hayes Valley Neighborhood Association’s letter of support here [pdf].

Tomorrow’s hearing starts at 10 a.m. in Room 416 at San Francisco City Hall.