From SFMTA:

You are invited to help develop a pilot network of shared Muni-commuter shuttle stops as part of the 18-month pilot for commuter shuttles that will start on July 1. If you do not want to use the interactive map, please join us at an open house to provide in-person information to SFMTA staff. Drop in anytime during the two-hour meetings and let us know which stops would be best by describing conditions on specific streets, suggesting specific stops, and sharing preferences about where shared stops will work best in your neighborhood.