Routine design When we think of bridges, it is the dramatic and monumental long spans that come to mind first, especially the lithe suspension bridges such as the Golden Gate and the pure geometric arches such as Sydney Harbour. But the majority of bridges are not such spectacular structures. Most of them are ordinary overpasses, with spans of 30 or 40 feet, carrying roadways or rails across other thoroughfares or over small streams. You see such bridges by the dozen on any drive down the Interstate. They may be lacking in glamour, but they are more representative of a bridge builder's art. The engineering and construction of girder bridges are pretty routine these days, but the bridges are not quite standard items you order from a catalogue. The girders, whether of steel or concrete, are custom-build for each bridge, then trucked to the site and hoisted into place with a crane. The designer still has scope for variation and creativity, and it shows out on the highways: some overpasses are prettier than others. Brian Hayes, Infrastructure: A Guide to the Industrial Landscape engineeringdesignautomationroutine
Controlled environments “Controlled environments” are another of modernism’s great obsessions. Extravagant amounts of energy are spent to keep buildings—as well as skyway systems, shopping malls, and domed stadia—at a constant temperature year-round via entirely mechanical means. The folly is not simply a touchy-feely isolation from the authenticities of nature, which can admittedly be cruel, but a larger disciplinary presumption that seeks to extend the centralized authority (central air, central government) of power ever more comprehensively. It is possible that this particular hubris may have pushed Gaia to the tipping point. Michael Sorkin, 20 Minutes in Manhattan At a uniformly comfortable termperatureFascination with control sustainabilitycontrol