In this report, a speeding reductive Mobile Crowd Sensing platform is designed, implemented and evaluated. The platform includes a client application available for Android and iOS with speeding reductive measures incorporated. The server performs real-time map matching, data calculations, and provides real-time feedback. The data is stored in a data warehouse which enables the platform to offer a public API with anonymised data. Users are encouraged to participate through the client application by offering traffic related feedback, calculate driving scores and displaying a competitive leaderboard.