D · worse than 88% of San Francisco intersections

15 collisions in 5 years, 140 street-condition 311 reports in 3 years. District 9

SUPPORTED

Get the letter
The corner, three ways

24th and Valencia

AUDITED
San Francisco, District 9
Street View plus Gemini
24th and Valencia today, photographed by Google Street View AI visualization of a proposed fix at 24th and Valencia. Not a photograph.

TodayThe corner as Street View last photographed it. Imagery: Google.

Official record
Case fileevery date read from a stored record, none invented
  1. DataSFScored from the city's own recordsdate not recorded
  2. Google MapsPhotographedchecking the stored frame
  3. ExaPress readchecking stored coverage
  4. ApifyResidents heardchecking stored scrapes
  5. GeminiVisual auditchecking the stored audit
  6. GeminiFix drawnchecking the stored render
  7. The gateLetter verifiedchecking the stored letter
  8. YouSent: that part is yoursthe letter is drafted, never sent by us

Press coverage

found live, cited Press via Exa

Resident voices

scraped
Injury collisions, last 5 years
within 150m
Street-condition 311 reports, 3 years
within 150m
Supervisor district

The ask

DRAFT ONLY
Proposed fix
Continental crosswalks, corner daylighting, and a leading pedestrian interval
$250,000 to $350,000, order of magnitude
Funding route
Caltrans Highway Safety Improvement Program (HSIP)
NOT SENT TO ANY OFFICIAL
Dear Supervisor Fielder, I am writing to you regarding urgent safety concerns at the intersection of 24th and Valencia in District 9. City records document 15 injury collisions within 150 meters of this intersection in the last five years. It is important to note this 150-meter radius differs from the tighter 80-meter core used for the Danger Index grade, so these figures are measured over different areas. Additionally, 140 street-condition 311 reports, covering street defects, sidewalks, curbs, signs, streetlights, and blocked sidewalks, have been filed at this location in the last three years. This intersection shows more reported harm than 88 percent of San Francisco intersections, earning a grade D on the Danger Index. This index ranks reported harm, not risk per crossing, as it lacks exposure normalization. An automated visual audit observed a vehicle turning conflict zone in a Street View photograph, which city records corroborate with 2 pedestrian crossing collisions documented in the last five years. To enhance safety at 24th and Valencia, I urge you to fund Continental crosswalks, corner daylighting, and a leading pedestrian interval. These improvements are estimated to cost $250,000 to $350,000 and could be sought through the Caltrans Highway Safety Improvement Program (HSIP). Thank you for your attention to this critical safety matter. Sincerely, A resident of District 9
draftedby Gemini

Every figure in this letter is checked against the source records before it is shown. A draft that states something the records do not support is rejected and rewritten.

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Google GeminiGeminiAudits the real Street View frame for hazards, renders the fix, writes the letter
ExaExaFinds current press coverage of this intersection, cited
ApifyApifyScrapes what residents say on Reddit and Google Maps
Google MapsGoogle MapsStreet View frames, the corner thumbnail, and the city map
CloudflareCloudflareWorkers serve the page, KV holds corners, imagery and grades
DataSFDataSFCollisions and 311, queried by radius around the corner

Every claim about a dangerous corner, graded and traced to its source, ending in a picture of the fix and a letter to the Supervisor.