Posted by Peter G. Chase on July 5, 2017 
From the Wikipedia article: [https://en.wikipedia.org/wiki/Bordeaux_tramway] "By demand of the Municipality of Bordeaux (CUB), part of the system uses ground-level power supply (APS). There is no overhead wire, and electric power to the tram is supplied by a center rail with only the portion directly under the tram electrically live. This prevents electrocution of pedestrians and animals."
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