1) Road traffic deaths are a major global problem, with 1.24 million deaths and 50 million injuries annually. Middle-income countries have the highest road traffic death rates despite having only half the number of vehicles as high-income countries. 2) Cambridge Mobile Telematics uses mobile sensing and big data analytics to make roads safer by improving driver behavior. Their smartphone-based solution accurately tracks driving data like speed, acceleration, and distraction levels. 3) The company analyzes this driving data to provide users with feedback and incentives to encourage safer behaviors over time, using approaches like gamification and social competition. Their goal is to leverage the widespread adoption of smartphones to help reduce the number of traffic accidents and deaths worldwide