San Jose Is Training AI to Identify Homeless Camps

Images captured on cameras mounted on a municipal vehicle are being used to train a private technology companies’ AI algorithm to detect tents and signs of habitation in vehicles.

2 minute read

April 2, 2024, 11:00 AM PDT

By Mary Hammon @marykhammon


Homeless Camp

pisaphotography / Shutterstock

The Guardian recently reported that San Jose is conducting what experts believe to be a first-of-its kind experiment to train AI to recognize tents and cars with people living inside them. Since last December, city employees have been driving periodically through the city’s district 10, filming footage of streets and public spaces with a camera mounted on a municipal vehicle. That footage is then fed into computer vision software and used to train algorithms for a handful of technology companies’ algorithms to detect “unwanted objects.”

“Some of the capabilities the pilot project is pursuing — such as identifying potholes and cars parked in bus lanes — are already in place in other cities. But San Jose’s foray into automated surveillance of homelessness is the first of its kind in the country, according to city officials and national housing advocates,” writes Guardian reporter Todd Feathers.

The pilot won't likely impact just San Jose, Feathers reports: "San Jose’s position as a national leader on government procurement of technology means that its experiment with surveilling encampments could influence whether and how other cities adopt similar detection systems.” It could be of particular interest to the increasing number of local governments criminalizing activities that homeless people have no choice but to undertake, as well as Florida municipalities looking to enforce that state’s new ban on outdoor sleeping.

The Guardian article digs into the finer details of how the AI algorithms are being trained to distinguish between, for example, an RV that’s simply parked and one that’s being lived in, as well as privacy issues for people’s faces and license plate numbers that are captured. Though the pilot’s data use policy says the footage can’t be used for law enforcement purposes, police can request the footage. And, in light of San Jose’s recent crackdowns on homeless encampments but already overwhelmed shelters that leave the unhoused people nowhere to go, housing advocates are concerned the technology will be used to punish the city’s unhoused residents. A city employee told the Guardian that one response to the new technology’s findings might be to send outreach workers to a single tent before it can grow into an encampment; however, the San Jose housing department and non-profits providing aid to unhoused people told the Guardian they were not involved in the pilot.

Monday, March 25, 2024 in The Guardian

Large blank mall building with only two cars in large parking lot.

Pennsylvania Mall Conversion Bill Passes House

If passed, the bill would promote the adaptive reuse of defunct commercial buildings.

April 18, 2024 - Central Penn Business Journal

Rendering of wildlife crossing over 101 freeway in Los Angeles County.

World's Largest Wildlife Overpass In the Works in Los Angeles County

Caltrans will soon close half of the 101 Freeway in order to continue construction of the Wallis Annenberg Wildlife Crossing near Agoura Hills in Los Angeles County.

April 15, 2024 - LAist

Workers putting down asphalt on road.

U.S. Supreme Court: California's Impact Fees May Violate Takings Clause

A California property owner took El Dorado County to state court after paying a traffic impact fee he felt was exorbitant. He lost in trial court, appellate court, and the California Supreme Court denied review. Then the U.S. Supreme Court acted.

April 18, 2024 - Los Angeles Times

Row of yellow Pacers Bikeshare bikes at station in downtown Indianapolis, Indiana.

Indy Bikeshare System Turns 10, Expands to E-Bikes

Pacers Bikeshare riders logged over 700,000 rides since the system launched in 2014.

58 minutes ago - Indy Today

Aeriel view of white sheep grazing on green grass between rows of solar panels.

Coming Soon to Ohio: The Largest Agrivoltaic Farm in the US

The ambitious 6,000-acre project will combine an 800-watt solar farm with crop and livestock production.

1 hour ago - Columbus Dispatch

Pedestrians crossing a busy crosswalk on New York City street with tall buildings in background

New York’s Deadliest Neighborhoods for Pedestrians

Pedestrian deaths rose last year, but remain below pre-2020 levels.

2 hours ago - PIX 11

News from HUD User

HUD's Office of Policy Development and Research

Call for Speakers

Mpact Transit + Community

New Updates on PD&R Edge

HUD's Office of Policy Development and Research

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.