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book:book-2-of-nature-of-orderBook 2 of Nature of Order
Earlier volume where Alexander explained degrees of life as objective and discussed sequencing of questions (chapter 13).
Extracted from this book
Claims (13)
- A truly dynamic structure-preserving process generates layouts in which every single bit of space becomes a living center — streets, lots, gardens, courtyards, housesCore claim about the morphological output of the fundamental process applied to neighborhood design.
- Choice among alternatives as a group design strategy does not work realistically because alternatives differ on too many dimensions simultaneously for consensus to formAlexander's critique of conventional democratic design processes based on multiple-choice selection.
- Each house must be different to give each family its dignity; identical mass-produced houses violate the individual life and dreams that underpin the living processThe socially normative claim Alexander and the families made against Hernan Alesia's standardization demand.
- In miniature, the Fort Mason bench and its ornaments display the same morphological features as the layout of a neighborhood displays in the large — the fundamental process works at all scalesAlexander's cross-scale invariance claim about the living process.
- Repeated use of the fundamental process will typically generate irregular streets following contours, polygonal lots, long-narrow houses adjusted to lot lines, positively-shaped gardens, and overall lot designs composed of separate adjacent portionsAlexander's enumeration of the predictable morphological outcomes of the dynamic process across scales.
- Simulations of a generative process (done in the laboratory) are essential to test that the defined process generates coherent complex variable morphology before applying it to real landAlexander's methodological justification for using the Guasare simulation studies.
- Successful group consensus on complex design is achieved not by choosing among alternatives but by resolving a long sequence of very small, particular questions one at a time in the right orderAlexander's solution to the 'elephant designed by a committee' problem.
- The health or lack of health of various places in a neighborhood, meter by meter, is widely recognized, felt more or less the same by everyone, and is an objective reality — not a matter of opinionAlexander's assertion that neighborhood quality assessment is objective, supported by Yodan Rose's study.
- The main problem of community development is to grow a neighborhood dynamically rather than statically, because only the dynamic process creates and maintains relatedness between partsAlexander's central thesis distinguishing dynamic living processes from static master planning.
- The physical street must be built after the houses — not before — because the street draws its life and form from the real volumes which houses take on during constructionA specific counter-intuitive sequencing claim about how streets and buildings should be ordered in the living process.
- To make each garden a center and each house a center, lots must be composed of two sub-centers (house area + garden area), producing irregular zig-zag lots — not simple rectangles as in conventional subdivisionsAlexander's claim that center-generating requirements force unconventional lot geometry.
- Traditional neighborhoods that we love were produced by processes similar in character (different in geometry) to the fundamental process, and cannot be built any other wayAlexander's historical claim grounding the fundamental process in traditional building practice.
- Twentieth-century 'filled-in' plan-based developments were often dead when built because their form did not emerge naturally from actual events in the ongoing life of the communityAlexander's diagnosis of why conventional developments lack life.
Findings (6)
- After testing multiple table shapes for the Fort Mason bench, the pure octagonal table was found to interfere least with the existing structure of the water, Bay, railing and benchEmpirical result from the bench-building process illustrating structure-preserving selection at the detail scale.
- At Moshav Shorashim (1982-88), four houses in a single cluster each came out entirely different, governed by family choices interacting uniquely with topography and orientationEmpirical result showing that the generative process produces authentic uniqueness at the individual house scale.
- At Santa Rosa de Cabal, 76 families each designed their own unique house using the generative process, with the neighborhood complete in its first form by 1995Demonstration that the fundamental process scales to full community development with diverse family participation.
- The 10-step Guasare process generates a dense field of living centers in which every bit of space — street, lot, garden, courtyard, house — forms a coherent center, a result achievable only by this dynamic sequential processDemonstration via simulation that the defined process produces complex, organic, center-rich morphology.
- The Guasare simulation showed that the defined process generates coherent, complex, and variable morphology for houses, streets, lots and gardens even without influence from external factors such as land and topographyKey validation that the process itself — not just site conditions — generates living structure.
- Yodan Rose's North Beach study found high rank-order correlation (Kendall's rho) between different people's diagnoses of good and bad places along streets in North Beach, San FranciscoEmpirical evidence that neighborhood quality diagnosis is objective rather than merely a matter of opinion.
Hypotheses (1)
- If every neighborhood maintained an ongoing, updated diagnosis on a computer, all future acts and capital expenditure could be continuously guided toward improvement of bad spots and enhancement of better spotsAlexander's proposal for institutionalizing the diagnosis-feedback-repair loop at city scale.
Neighborhood — ranked by edge-count
Chapters (1)
chapter
- The working unit being extracted; covers dynamic neighborhood generation, structure-preserving transformations, and case studies in Colombia, Venezuela, Israel, and San Francisco.