A good example is the case of Medellin, Colombia, which being spread over a valley and overhanging hills is one of the most spatially divided cities in the world. Since then, five cable car lines link the poor barrios located on steep inclines to the rest of the city, providing quick, safe transit for commuting workers and vendors and providing a sense of civic belonging to one single urban space. For instance, informal settlements or slums are not just an expression of economic exclusion (the poor unable to afford formal land/ housing), but can also be produced at the intersection of these various forms of exclusion (Chapter 5 “Just” Environmental Sustainabilities).