29 March 2012

Urban fractal generation and The Law of Thermodynamics (draft)

.In complexity theory, everything is dynamic, nothing is static.  Everything is also in motion, even to maintain stability. The allusion of a phenomena or object appearing to be at rest is because of the discounting of the presence of other forces and their relative speed in action upon or interacting with the phenomena. For example, a ball that is put in a bowl has a brief period of rapid motion as it drops to the bottom. It appears in a state of rest, but gravity is maintaining this rest depending on the rotation of the earth.  This is long term stability, but certainly not infinite stability.

This concept is the metaphoric use of the Law of Thermodynamics.  There is a force that initiates the motion of objects, accelerates it and eventually the motion decays.  The later phrase is called entropy. In the same manner if the energy or force applied for acceleration or maintenance becomes beyond the capacity of the ‘engine’, then it has to slow down or break down.   If it is desired that the engine be able to function with additional energy applied then the engine must be adapted for this.  However there are still limitations. These limits are fuzzy, but at some point there is definite moment of transition.
There are numerous examples of this principle to urban fractal generation, whether it is manifested in tangible or intangible elements. It also must set up within the overall principles of complexity and fractal generation.  For example,  an area which is vacant  and suitable for development, grows rapidly because of the economic forces etc. making this area attractive.  It will continue to grow until constrained by the capacity of the area of the economic forces driving the development.

As an adjunct to this concept of the Law of Thermodynamics is that of a filter that changes the rules for fractal generation. For example, an already established city has set-up a policy of protection of a watershed in an area on the edges of urban development.  This will determine the formation of urban fractals within the watershed protection area.  It may mean that the some urban development already growing in the direction will have to go somewhere other than the area (i.e., heavy industry) or the residential, commercial or industrial development has to be altered to minimize pollution to the watershed.  The development will grow, fill up the space and eventually become stable, but depending on a ‘filter’ that altered the fractal formation.

These brief paragraphs are fragments of thoughts about the application of the Law of Thermodynamic to fractal generation. They should be expanded upon at a later date.  Any comment or criticism is welcomed

28 March 2012

Brief introduction to fractals., chaos, complexity and urban development

This video  is a good  introduction to fractal generation and its connection to the form of urban development. Also, emphasizes one of my basic theories that urban policy contains 'a set of rules' that will generate 'urban fractals' that are either sustainable or unsustainable, transit-friendly or transit hostile, pedestrian friendly or  automobile oriented, or set in motion the process of revitalization or reenforce decline and decay.