::Cross-Wind Bridge::The Cross-Wind Bridge promotes the notion of a multipurpose envelope which is engineered to capture the windpower from a network of 2,188 light-weight rotating panels. Drivers who pass below the bridge contribute to itsecosystem by increasing the wind velocity by up to 20%, and thus optimizing the rotation of the panels.The induction power system exchanges wind energy through an electromagnetic band located on each panel. Theresult is a power source that is used to light the bridge at night. During this cycle, a driver plays the role of an active,generative agent. In return, the bridge acts as a responsive “urban chandelier" visualizing the productive elementsthat produce its inner light.The oblique angles of the bridge’s path are oriented towards and optimized for the predominant wind direction. Theycombine with a surgical urban approach to funnel pedestrians and bikers onto its 40 meter diagonal span over theSegunda Circular Highway.The selected Southwest / Northeast direction is also a consequence of reconnecting and making accessiblethe remaining paths of Maria Droste Vila split by the Segunda Circular highway and engulfed by Telheira's residentialpark. In this context, the bridge will play a formative role in magnetizing sustainable development and turning ruralfragments into sources for public green space.The Northwest pedestrian stairs are aligned with an existent boulevard from the Maria Droste Vila and deploys tothe future roundabout, located on the Southwest, just next to Galp Energia Headquarters.The cycling arm of the Cross-Wind Bridge is structurally balanced above and below the pedestrian bridge. It formsa 'Z' shape, suggesting the motif of an energetic bike path that links Monsanto in the Southwest side of the city withCampo-Grande in the Northeast side of the city.35% of the punctured membrane forming bridge cladding is made of recycled steel from the auto industry. Thestructure is based on a truss system, reinforced at the edges, and balanced by concrete stairs and footings.Brief: International ideas competition for a new cycling and pedestrian bridge over the Segunda Circular highway in Lisbon, Portugal. Promoted by Experimenta Design and Galp Energia Foundation.Offcial competition website:http://www.experimentadesign.pt/2009/en/00-02-01.htmlProject Architects: Tiago Barros + Jorge PereiraTeam: Ines Valente, Rob Foote III, Yoon-Young Hur, Natalie Bazile, and Joao Paulo Fernandes