Dossier
Rumbler low-frequency warning system
Coverage of Rumbler low-frequency warning system in the Nexus archive.
- LAPD patrol vehicle upgrades include sirens drivers can feel
The Los Angeles Police Department is upgrading its patrol vehicles with Rumbler low-frequency sirens that produce vibrations motorists and pedestrians can feel, aiming to enhance safety by alerting people sooner. The system works alongside existing sirens to generate both audible and physical warnings.