"Nation... Nation... On line 9, as on other metro lines with sound, most passengers pay no attention to the voice announcements that echo in the trains before entering the station. But for the blind and visually impaired who use the Paris metro, these information messages are a great help. "This avoids having to count stations at the risk of making mistakes. Or having to ask other travelers for help. It's more autonomy, less difficulty," recalls Sylvain Nivard, president of the Valentin-Haüy association for the visually impaired.
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