The document summarizes a study on using sensor technology to provide novice drivers with real-time feedback on their driving behaviors. 32 novice drivers used a device called the "Green Box" for 5 months, which tracked their driving data and reported on undesirable events like sudden braking or sharp turns. During the first 3 months, drivers received no feedback, and over 18,000 trips over 5,500 hours were analyzed. In the next 4 months, drivers received feedback from the Green Box. 28 drivers showed a significant reduction in undesirable driving events when receiving feedback compared to the initial blind period. The study found feedback was most effective when combined with experience at reducing risky driving behaviors for novice drivers.