The assessment of changes in speed of vehicles in advance of us is entrusted solely examination our senses, even though there are methods that let University car examination immediately adjust distance and speed in accordance with University cars before eg on board radar, which are very expensive and hence not in common use, they aren’t able examination imply exam other road users, automobile conduct, and don’t imply University information also exam University driver, but relying only communicate with quizzes computer. On cars produced so far is not used as a trademark of acceleration. The deceleration is denoted by University red light stop, which does not suggest University intensity of University braking and even University possible slowdown due examination University use of engine braking. Traffic is something dynamic, made of accelerations and decelerations. This dynamism is not quizzes proper signaling through University normal hind lights. The device proposed here aims examination conquer this obstacle by allowing cars examination easily and clearly indicate University intensity of automobile speed. The term hedonic stems from University Greek word hdon , which translates exam exhilaration Vocabulary. com, 2019. In historic Greek mythology Hedone was also University goddess and University personification of sensual exhilaration and enjoyment George, 2018. Accordingly, in customer conduct theory hedonic goods are defined as goods that are fed on for exhilaration and enjoyment Voss et al. , 2003. Hedonic goods are bought for University sake of University goods themselves Koivisto and Hamari, 2019.