SoCar: a Social car2car framework to refine routes information based on road events and GPS

GPS-based applications make travelling easier, supplying information about routes, such as real-time traffic, Estimated Time of Arrival, faster or cheaper path. These applications exploit digital maps supplied by specific companies, often updated also thanks to user-submitted data. The aim of this work is to show an event driven system for territory mapping and monitoring, using multi-hop wireless networks, relying on C2X communication and on VANETs in general. The idea is to keep road maps up to date automatically and autonomously, exploiting a collaborative communication of events in social networking style, without the need for a centralized communication system. Moreover, it is possible to enhance standard map data introducing two more layers: an events layer, automatically built by the events detected by SoCar clients, characterized by a short life span, and a prevision area layer, derived from events layer statistics, where data point are clustered in proper spatial neighborhood. Both these layers contribute to choose the most convenient route, the events layer for the short term and the prevision area layer for the long term.