Early detection of critical urban events using mobile phone network data.
2024PloS one
Lemaire P, Furno A, Rubrichi S, Bondu A, Smoreda Z +3 more
Plain English
Researchers developed a system that monitors mobile phone network activity across Paris to detect emergencies and unusual events in real time—like fires, accidents, or large crowds—by spotting sudden spikes or changes in how people are using their phones in specific neighborhoods.
The system can pinpoint where an event is happening within just a few city blocks and within minutes of it occurring, using artificial intelligence to recognize patterns that don't match normal phone usage.
This matters because emergency responders could get alerts about disasters faster than waiting for 911 calls, allowing them to save more lives and help cities plan better for public safety.