People feed pigeons at Catalunya square in Barcelona, Spain December 23, 2017. REUTERS/Jon Nazca
BARCELONA: In the picturesque Barcelona district of El Born, residents can get a better night’s sleep nowadays because garbage trucks pass only when bins in the street are full, thanks to high-tech sensors that detect when they need to be emptied.
Meanwhile, a few streets away, magnetic sensors under the road surface allow drivers to find out in advance if a parking space is free – saving them time and cutting back on vehicle emissions.
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