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In this seminar, advanced car navigation services will be introduced. In the future, mobile phones will be our main source of information, both inside vehicles and on the roadside. Furthermore, high-speed connections will enable data exchange between nearby vehicles. In this advanced seminar, CENTRIA's usage of Nokia Ovi Maps' interface will be introduced as an example of a situation-aware traffic service. CENTRIA has used a wireless sensor network (2,4GHz) as well as an ODB2 bus for a vehicle communication channel. In addition, information about the driver's health condition was accessed using wireless heart-rate sensors. Roadside environmental information, in turn, was collected using roadside sensors at a frequency of 868MHz. This advanced seminar will also demonstrate how sensor information can be visualized in car navigation. First of all, CENTRIA gained roadside visualization experience and in-vehicle sensor information from their experience with Nokia Ovi Maps. CENTRIA is able to visualize collected sensor data, such as weather, driver, and vehicle information, by utilizing the Nokia Terminal Mode. In addition, critical information, such as alarms, can be accessed from the server through the Nokia Push Notification service, even when navigation services are not in use. All the participants will have an opportunity to test the system.