A few years ago, a block on Sancho de Ávila Street in Barcelona looked like a fairly typical city block—a couple of lanes of traffic, a row of parked cars on one side, and a bike lane on the other.

The plan to largely eliminate car traffic from nine-block squares of the Spanish city means more pleasant local streets, but makes some car trips take longer. Not everyone is happy. Barcelona’s ...

Barcelona has repeatedly failed to meet air quality limits set by the European Union and is trying to cut back on air pollution, while expanding public spaces BARCELONA, Feb 23 (Thomson Reuters ...