Spotify fast forwards music when speeding to reduce traffic accidents

In Peru, 70% of traffic accidents are due to excess speeding, with many drivers not aware that they are over the speed limit when driving.
To raise awareness of excess speeding and encourage drivers to slow down, leading music streaming service Spotify introduced ‘Music Signs’. When drivers surpass the national speed restriction (100km p/h), the app automatically fast forwards the music track currently being played, matching the speed of the travelling vehicle, before showing a speeding alert. This encourages drivers to slow down, in order for the track to return to its normal playing speed.
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Via: Guerilla Blog