He stands looking up at the bridge, at the silvered plywood of uncounted tiny dwellings. It reminds him of the favelas of Rio, though the scale of the parts is different, somehow. There is a fairy quality to the secondary construction, in contrast to the alternating swoop and verticality of the core structure's poetry of suspension. The individual shelters—if in fact they are shelters—are very small, space being at an absolute premium. He remembers seeing the entrance to the lower roadway flanked with guttering torches, though now, he knows, the residents largely cooperate with the city's air-pollution measures.