Greenbelt Launches Stop-Sign Camera Enforcement With Month-Long Warning Period

Before automated cameras arrived in nearby Morningside, 87% of drivers rolled through at least one stop sign there every single day. Greenbelt is betting six cameras can produce the same attitude adjustment it is watching play out across the county.

The city activated the cameras on April 1 at six intersections identified through safety reviews, opening a 30-day warning phase before $40 civil fines begin on May 1. The Greenbelt Police Department and city government are jointly administering the program; violations carry no license points.

In November 2023, Sky Sosa, 5, and Shalom Mbah, 10, were struck and killed near Riverdale Park Elementary, losses that pushed state and county lawmakers to act. Prince George's County logged 116 road fatalities that year, including 32 pedestrians. Maryland HB 364, enacted in March 2024, authorized automated stop-sign enforcement in school zones. PG County Councilmember Krystal Oriadha, representing District 7, helped move the county's enabling legislation, which passed in December 2024. Greenbelt's contract with its vendor, Obvio, was presented to the City Council on January 28, 2025.

The results in earlier PG County deployments are difficult to dispute. Across five municipalities that went live before Greenbelt, violations dropped roughly 70% within four months of activation, with roughly 6,000 cars per day recorded failing to stop before cameras went live. In Berwyn Heights, Mayor Tiffany Papanikolas has pointed to a finding that undercuts the most common criticism of these programs: only about 12% of tickets there went to local residents. Through-traffic drivers absorbed the rest, a pattern that directly challenges the argument that camera programs primarily penalize neighborhood residents.

Concerns about accuracy, appeals and surveillance have surfaced among some Greenbelt residents. The technology is designed to limit exposure: Obvio, co-founded by CEO Dhruv Maheshwari, processes footage locally and deletes non-violation video within roughly 12 hours. A 2025 state law bars law enforcement from using stop-sign camera data for unrelated purposes without a subpoena or warrant.

For the rest of April, any infraction caught on camera results in a warning letter, not a fine. Citations of $40 begin May 1. The city has not yet published a public map of the six camera locations or detailed its appeals procedures; residents who receive a warning and want to contest should monitor city communications as those details are released. Greenbelt is one of more than ten Prince George's County municipalities that moved toward automated stop-sign enforcement over the past year, part of a regional shift drawing parallel legislative interest in Montgomery County, Baltimore City, Virginia, New York and Delaware.