Jones and Market

Dear Supervisor Mahmood, I am writing to you as a resident of District 5 regarding the critical safety issues at the intersection of Jones and Market Streets. City records document 94 injury collisions within 150 meters of this intersection in the last five years. This figure covers a 150 meter radius, while the Danger Index grade is computed over a tighter 80 meter core, so the two figures are measured over different areas and a reader should not expect them to reconcile. Additionally, 1105 street-condition 311 reports were filed at this location in the last three years, counting street defects, sidewalk and curb, signs, streetlights and blocked sidewalks only. This intersection shows more reported harm than 99 percent of San Francisco intersections, earning a grade F on the Danger Index. No exposure normalization: the index ranks reported harm, not risk per crossing. To address these documented hazards, I urge you to fund improvements including Continental crosswalks, corner daylighting, and a leading pedestrian interval. These measures are estimated to cost $250,000 to $350,000, order of magnitude, and could be implemented through the Caltrans Highway Safety Improvement Program (HSIP). Thank you for your attention to this vital matter. Sincerely, A resident of District 5