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This paper presents the experimentation of a system, developed through the RAMPE research project, intended for the assistance and information of blind or Visual Impaired People (VIP) so that they can increase their mobility and autonomy in public transports. The system is intended to equip bus or tramway stops. It is based either on a simple remote command or on a smart hand-held devices that is a WiFi enabled Personal Digital Assistant (PDA) able to retrieve travelers information. This system has been evaluated by blind People in real environment in the public transport in the city of Lyon in France. Ergonomics data has been collected during the experiment and analyzed, showing the usability of such kind of device by VIP.