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Cooperative Intelligent Transport System (C-ITS) is a key enabler of future road traffic management systems. The core component of C-ITS includes vehicles, road side units and traffic command centers. They generate a large amount of traffic that is made up of both mobility and service-related data. To extract useful and relevant information out of this data, data analytics will play a crucial role in future C-ITS applications. We present a review of how data analytics can benefit C-ITS applications. We describe the various types of data generated by C-ITS applications and potential dissemination techniques using various wireless technologies. We demonstrate how meaningful results from this data could be beneficial to C-ITS. We also demonstrate the improved reliability of C-ITS applications that can be achieved with data analytics using simulation results. Finally, we discuss future possible applications of data …