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February 20th marks a new edition of the World Day of Social Justice. The theme, "Overcoming barriers and unlocking opportunities", is a perfect occasion to reflect on the importance of equity in all areas of society - and especially from architecture and urbanism. And yes: they both have a fundamental role in building accessible cities and are important tools for addressing the challenges of economic inequality and social exclusion.

Highway interchanges have evolved from important infrastructures that help distribute traffic to unique landmarks that define cities. As multiple road networks embrace and form distinctive sculptures, these road intersections range from singular bridge connections and roundabouts to numerous, layered and multi-layered interchanges. They twist, turn, loop, and wrap around sparse land, vegetation, or existing structures in a bid to transfer travelers from one roadway to another. However, they also create a moment of enclosure, forming partially bounded areas and a sense of space. These spaces could be viewed as liminal and transitional, with no fixed typology able to be hosted. But that blurring character calls for ideas of urban intervention to disrupt the notion of what these spaces can be. They can be readapted from car-dominant sculptures into more human-friendly places and re-integrated as extended schemes of the city's architecture.  

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