Trained as a sculptor, an engineer, and an architect, he synthesizes new technologies and new forms in all his projects, including a memorable bridge in Barcelona and train stations in Zurich and Lyon. His work transcends the traditional boundaries between art and architecture as well as between engineering and architecture. Calatrava's projects have won critical acclaim internationally and are widely published both in Europe and in the United States. T he bridge spans the railway tracks between the main streets 'Bach de Roda' and 'Felipe II', which run from north to south, connecting the sea and the ci ty. T he twin arches widen slightly at both ends, increasing structural rigidity and permitting the passage of pedestrians on footpaths to either side.
Steps follow the line of the arches on both sides of the railway.
The elements display an essential but rather neglected feature of concrete, namely, its capacity for being moulded. Prefabricated elements are the optimal answer to the demand for freedom of design. PGA Simon and Schuster's Pocket Guide to Architecture , Patrick Nuttgens, Simon and Schuster, New York, NY, 1980. The Autobiography of an Idea , Louis H. Sullivan, Dover Publications, Inc, New York, 1924. TNH The Natural House , Frank Llyod Wright, New American Library, New York, 1970.