photo enforcement

The navigation-system provider TomTom, which uses crowd-sourced traffic data to help find the fastest routes, has been caught in the Netherlands selling users' speed data to police—who then might use that to decide where to set up speed traps. Live traffic information is arguably one of the most useful developments of the past decade, combining quicker-thinking navigation systems with crowd-sourcing innovations. As such, systems can take into account the average speed along particular routes and calculate—both in real time and based on predictive averages—which route is...