During the Start Making Sense kick-off event, concerned citizens, activists, and researchers joined forces to explore the heart of Rotterdam through a new kind of city walk — the Camera Spotting Tour.
In just 45 minutes, participants identified over 200 cameras, ranging from doorbell cams and PTZ systems to traffic enforcement and dome cameras. Each camera was tagged with key attributes such as type, purpose, and placement, helping to create an open, visual record of sensor presence in public space.
This interactive mapping exercise not only revealed the density and diversity of surveillance technologies in the city but also sparked reflection on transparency, accountability, and urban sensing — themes central to the development of a public Sensor Register and citizen engagement in smart city governance.
Explore the map, discover the legend of camera types, and dive into the insights gathered from this collective urban sensing experiment.
interactive Map
Click on the markers below to find more information about the spotted cameras and attributes. Use your mouse wheel to zoom in/out and pan around.