As a result of Gaudí's death, a public inquiry was held in Barcelona. One of the people who played a significant role in this inquiry was Mercedes Rodrigo. Mercedes and her sister, María, were a bit like the Bronte sisters in that they achieved individual recognition at a time when women didn't. María was a pioneering Spanish composer, pianist and teacher; she was the first woman to premier an opera in Spain. Meanwhile Mercedes was a prominent Spanish psychologist. At the time psychologists who worked in the field of applied psychology were called psycho technicians - psicotécnico in Spanish. One of the key outcomes of the inquiry was the introduction of mandatory psychotechnical tests for all Barcelona tram drivers. These tests were designed to evaluate essential factors such as vision, hearing, reflexes and personal habits (for example, alcohol consumption) to ensure that only suitable individuals would be deemed fit to drive trams. Later, similar tests were applied throughout Spain to most drivers.
Today, everyone who holds a Spanish driving licence has undergone a modern descendant of the psychotechnical test originally implemented as a result of that inquiry. Interesting to think that a pioneering woman scientist and a visionary architect had a hand in ensuring that modern drivers play a sort of basic computer game keeping a little black sphere on track so that fewer people get knocked down.