Using the Levels-of-Organization Concept to Establish Context and Consequence In Planning Depictions - PowerPoint PPT Presentation

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Using the Levels-of-Organization Concept to Establish Context and Consequence In Planning Depictions

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Title: Using the Levels-of-Organization Concept to Establish Context and Consequence In Planning Depictions


1
Using the Levels-of-Organization Concept to
Establish Context and Consequence In Planning
Depictions Ashwani Vasishth California State
University, Northridge ACSP 2007, Milwaukee, WI
2
Descriptions Matter
  • How we choose to make depictions of complex
    systems affects what we can see of context and
    consequence, and so affects outcomes
  • Complex systems are best conceptualized as being
    arranged into nested levels of organization

3
Elements of An Ecosystem Approach
  • Processes
  • Boundaries
  • Scales
  • Purpose
  • Perspective

4
Properties of An Ecosystem Approach
  • Nested Assembly
  • Scale-hierarchic Levels of Organization
  • Rate-dependant Boundaries
  • Purposive Descriptions
  • Scale-dependent Structuring
  • Functional Associations

5
An ecosystem approach based on nested
scale-hierarchic process-function ecology
offers the most effective basis for making
robust descriptions under complexity
6
Nested Systems
Bossel, H. 2001. Assessing Viability and
Sustainability A Systems-Based Approach for
Deriving Comprehensive Indicator Sets.
Conservation Ecology, 5(2) 12.
7
Nested Structures
ONeill, Robert V. et al. 1986. A Hierarchical
Concept of Ecosystems. Princeton, NJ Princeton
University Press. p.131
8
Nested Scale Hierarchy
9
Levels of Organization
Allen, Timothy F.H. Thomas W.l Hoekstra. 1992.
Toward A Unified Ecology. New York Columbia
University Press. p. 30
10
South Coast Goods MovementLevels of Organization
Supra-system
System of Concern
Sub-system
11
In One Meaningful Sense, Globalization Is the
Externalization of Environmental Health Costs
By the Rich, Onto the Poor
12
Toxic Pollution and Life Expectancy
  • In a memo dated December 12, 1991, Lawrence H.
    Summers, then Chief Economist at the World Bank,
    is said to have suggested that toxic industries
    be relocated to nations with the lowest life
    expectancies and the lowest wages
  • Weve done just that!

13
Local Impacts of Globalization
  • The globalization of production means a huge
    increase in international goods movement
  • Diesel-powered ships, trucks and trains are what
    we use to move these goods
  • Diesel exhaust is highly toxic

14
The Hidden Costs of American Consumerism
  • Communities residing and working around goods
    movement nodes and facilities pay a high price in
    health impacts too

15
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16
Ranking of US Container Ports
17
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18
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19
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20
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21
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22
Diesel Rail Engines Belch Smoke
23
Truck Traffic On the I-710 Freeway
24
Freeways Serving the San Pedro Port Complex
25
Estimated Cancer Risk for the South Coast Air
BasinExcess Cases per Million Population
26
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27
Residential Land Uses
Industrial Land Uses
28
Houses Abut the I-710 Freeway
Los Angeles River
29
Proximity to Freeway A Factor In Pollution
Concentrations
Zhu, Yifang William C. Hinds Seongheon Kim
Si Shen Constantinos Sioutas. 2002. Study of
Ultrafine Particles Near A Major Highway With
Heavy-Duty Diesel Traffic, Atmospheric
Environment, 36 (2002) 43234335
30
Recommended Buffer Zones for New Construction
  • California Air Resources Board recommends a 300
    to 1,700 foot downwind buffer between freeways
    and human activity
  • Sensitive Receptors should be sited at least
    500 feet away when downwind from freeways
  • No recommendations for existing structures

CARB (California Air Resources Board). 2005.
Air Quality and Land Use Handbook A Community
Health Perspective. Sacramento, CA California
Air Resources Board.
31
Conventional Depictions Are Confrontational
  • Community groups and the Port Administration
    depict one another in oppositional roles, with
    State and Regional governmental agencies playing
    mediative roles
  • Non-profit groups tend to align themselves in
    activist roles alongside communities and against
    the Ports

32
Consequences of Confrontational Depictions
  • Given the oppositional characterization of roles,
    the debate is primarily limited to issues of
    physical growth in port activity
  • Community groups seek to limit growth, Port
    authorities seek to expand growth, and that sets
    the modalities for the discourse

33
Depiction as Nested Levels of Organization
  • Allows all relevant processes and functions to be
    kept in play, with associations and relationships
    shown in their actual configurations and
    strengths
  • Allows effects to be traced across levels of
    organization, with adjustments for benefits and
    disbenefits at different levels to be affected
    more directly

34
South Coast Goods MovementLevels of Organization
Supra-system
System of Concern
Sub-system
35
Benefits and Disbenefits
  • Benefits are clustered primarily at the
    sub-system and supra-system levels of
    organization
  • Disbenefits are concentrated primarily at the
    system level of organization

36
South Coast Goods MovementLevels of Organization
Supra-system
System of Concern
Sub-system
37
Redistribution of Benefits
  • Some small portion of the benefits accruing to
    the manufacturing, shipping, logistics and
    consumer markets should be redirected to
    remediate the adverse impacts at the neighborhood
    level of organization

38
Integrative Ecosystem Approach
  • Identification of properties most at risk
  • Design of buffer zones, using urban forestry and
    landscape elements
  • Redesign of neighborhoods using transit-oriented
    smart growth sorts of urban design strategies, to
    accommodate potentially displaced families within
    their current neighborhoods, where possible
  • Accelerated turnover of truck and rail fleets
    toward low-sulfur diesel and alternative fuels

39
Ashwani Vasishth
  • Department of Urban Studies and Planning
  • California State University, Northridge
  • vasishth_at_csun.edu
  • (818) 677-6137
  • http//www.csun.edu/vasishth
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