and Mary L Cadenasso, and social ecologists, this is a landcover rather than land-use urban design model, focused on the city <strong>of</strong> flows and cycles – people, information, energy, water and nutrients – and marked by extreme heterogeneity in built and vegetated forms. The understanding <strong>of</strong> time and scale in the ecological model <strong>of</strong> sustainability is misguided. Van Der Leeuw and Aschan-Leygonie state: ‘The noble ambition <strong>of</strong> those proclaiming a sustainable development seems difficult to realize, and is a long-term project which necessarily implies a general change in prevailing attitudes at all levels in most societies, the individual and the governmental level, as well as all levels in-between.’ 4 Unlike the ecological model <strong>of</strong> sustainability and even adaptation that presumes social systems are the dominant dynamic, the urban ecosystem approach stresses the reciprocity between the social and the natural dynamics, and underlies the importance <strong>of</strong> change as a means <strong>of</strong> survival. According to Holling: ‘[Resilience is] the capacity <strong>of</strong> a system to absorb and utilize or even benefit from perturbations and changes that attain it, and so to persist without a qualitative change in the system’s structure.’ 5 The important concept here is to change the drifting location <strong>of</strong> our understanding <strong>of</strong> where design has agency. In a resiliency framework, Van Der Leeuw and Aschan- Leygonie continue: ‘There are two – closely related – aspects <strong>of</strong> “resilience” that we must consider. The first concerns the behavior <strong>of</strong> a system, due to the structure <strong>of</strong> its attributes and the interactions between them, due to voluntary management or depending both on the inherent characteristics <strong>of</strong> the system and on human effort. The other aspect concerns the perception <strong>of</strong> perturbations and change, and notably <strong>of</strong> unexpected or even unforeseeable future events.’ 6 The patch dynamics city must therefore develop within a notion <strong>of</strong> disturbance ecology rather than a benign nature. Cities must be resilient, flexible and adaptable with bottom-up systems <strong>of</strong> monitoring flows and developing new surface-management tools. Urban Grain and Flows Hoboken was once an island in the Hudson River. Its western slope modulated a shifting tidal wetland terminating in a small stream at the base <strong>of</strong> the Palisades. An early lithograph reveals a commuter boardwalk linking the island to Patterson Plank Road at the top <strong>of</strong> the Palisades cliff. Industrial landfill coupled Hoboken to the mainland, and more recently its extended shoreline, the New Jersey Gold Coast, has been further interconnected by a north–south light-rail transit spur paralleling the Hudson rather than crossing to Manhattan. The shallow backwater territories housed industrial uses and government housing projects with residential dwellings occupying the higher ground to the east. A decrease in industrial production, and proximity to Manhattan, is repopulating the former tidal wetland as a new residential neighbourhood. Older residents enjoyed 19thcentury parks anchored by schools or churches and now newer parks and private landscapes are linked to shopping centres or are on shipping piers. The former industrial complex <strong>of</strong> Monroe Center became a creative catchment for Hoboken artists as the city was gentrified by Manhattan commuters. This social flux is placed in proximity to the retention <strong>of</strong> water flows to create the possibility <strong>of</strong> new socio-natural relationships. Such turbulent patches and flows are located in an anomalous territory where hybrid land uses and land-covers <strong>of</strong>fered a challenge to existing planning categories. Unable to fit the graded classification categories <strong>of</strong> metropolitan, suburban, fringe, rural or environmentally sensitive, the New Jersey Office <strong>of</strong> Smart Growth gave the linear city stretching from Bayonne to the George Washington Bridge its own special designation: the Urban Complex. Embedded along the ridge between the Hudson and the Hackensack rivers, the urban complex is laced with geological, topographical, industrial and social legacies. With sea levels rising, lowland and upland dynamics will increase in complexity as the oily manufacturing heritage floats to the surface and railway commuter interconnectivity continues to diversify this densely inhabited, multicentred territory. The New Regional <strong>Landscape</strong> The design and management tools <strong>of</strong> masterplanning, zoning and land-use controls grew out <strong>of</strong> the productivity and health needs <strong>of</strong> the industrial city a century ago. The ecological city demands new design and management tools. Also, our image <strong>of</strong> the city in relation to nature is changing. The old city model <strong>of</strong> a dense city centre ringed by green suburbs, agricultural land and a wilderness fringe is no longer operative. The contemporary city in both automobile- and agricultural-oriented societies tends to be much patchier with spots <strong>of</strong> high density scattered throughout a low-density urban/nature matrix. There is no longer a gradient from city to nature, but instead a heterogeneous mix <strong>of</strong> buildings and vegetation – both coarse and fine – pavement, soil and surface water. The ecologically managed and designed city is beginning to respond to current trends in urbanisation and globalisation, such as emergent and self-organised structures, informal urban settlements, loosely regulated edge cities or regenerated older centres driven by new lifestyle choices. urban-interface, Thick City/Thin City, Baltimore Ecosystem Study, 2006 Using the patch signature chart to analyse the Gwynns Falls Watershed, coarse vegetated and built dominated patches constitute the bulk <strong>of</strong> the thick city. Fine vegetation, pavement and bare soil dominated patches constitute the thin city, with transit routes linking the dense city <strong>of</strong> forests and buildings. 57
urban-interface, Megalopolis Now, Boston/Washington urbanised corridor, 2006 Forty million people inhabit the East Coast Megalopolis, a vast hardwood forest structured by watersheds. Across the Hudson River from Manhattan, the New Jersey Urban Complex – a large, densely populated conurbation, stretches along and under the ridge <strong>of</strong> the Palisades. The Gwynns Falls Watershed, a 168-square-kilometre (65-square-mile) subwatershed, meets the Patapsco River and Chesapeake Bay near downtown Baltimore, and is home to 250,000 people and 24 distinct commercial centres. 58
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Alison and Peter Smithson, Upper La
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Is There a Digital Future Landscape
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C O N T E N T S 4+ 114+ Interior Ey
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Practice Profile The Tailored Home
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Front and back elevations. Bungalow
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Entry detail. 130+
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Home Run Dosson in Casier, Italy Va
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Site Lines Night Pilgrimage Chapel
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