The Land-Use Evolution and Impact Assessment Model: A Comprehensive Urban Planning Support System

By Sun, Zhanli; Deal, Brian et al. | URISA Journal, January 2009 | Go to article overview

The Land-Use Evolution and Impact Assessment Model: A Comprehensive Urban Planning Support System


Sun, Zhanli, Deal, Brian, Pallathucheril, Varkki George, URISA Journal


INTRODUCTION

Urban growth and the resultant sprawling patterns of development are causing social, economic, and environmental strains on U.S. communities (Schmidt 1998). According to the Sierra Club, undesirable urban growth, also known as urban sprawl, has become one of costliest problems in America. With growing concerns about the negative impacts of these development patterns, public agencies and policy officials are seeking principles and tools designed to manage land-use change under the flag of "smart growth" or "sustainable growth."

During the past two decades, spatial analysis tools, geographic information systems (GIS), and remote sensing (RS) technologies have been widely deployed to monitor, analyze, and visualize the urban growth phenomena. Maps and satellite images, however, are limited to static displays of past and current data sets. They portray the current state of the system, with neither the reasons for it nor any possible future outlooks. Although GIS-based tools provide useful analysis and have been widely used to assist urban planners, the static mapping concepts on which they are built are clearly insufficient to study the dynamics of urban growth (Hopkins 1999). The causal mechanisms associated with land-use change remain relatively poorly understood, in part because of the complexity of urban systems. Consequently, policy makers and planners often are faced with the difficult tasks of making land-use decisions without sufficient analyses or vision.

Very recently, computer-based urban system simulation models are being employed to forecast and evaluate land-use change (Batty and Xie 1994, Birkin 1994, Landis 1994, Engelen et al. 1995, Wu and Webster 2000, Waddell 2002). These models represent a spatial and dynamic approach that enables planners to view and analyze the future outcomes of current decisions and policies before they are put into action. These models have the ability to help improve our fundamental understanding of the dynamics of land-use transformation and the complex interactions between urban change and sustainable systems (Deal 2001). These spatial dynamic modeling techniques are becoming essential elements in the Planning Support System (PSS) literature (Hopkins 1999, Kammeier 1999).

To date, however, spatial dynamic urban modeling is still in its infancy. Few models have been built that are able to represent the complex dynamics of urban land-use change that are consistent with observable data (Almeida 2003). As a result, few such models are operational and are used to assist urban planning practices.

In this paper, we present a comprehensive dynamic spatial urban simulation model, the Land-use Evolution and Impact Assessment Model (LEAM). LEAM originally was developed as a research project by an interdisciplinary team of researchers at the University of Illinois with support from the National Science Foundation. After a successful full-scale pilot application in Peoria, Illinois, LEAM has been selected to assist planning practices in the St. Louis metropolitan area, as part of the Department of Defense (DOD) encroachment analysis and as part of the Smart Growth initiative introduced by the state of Illinois. Described here is a bistate application of LEAM consisting of the five counties in southwestern Illinois and the five counties in east central Missouri that make up the St. Louis metropolitan region. In the following sections, the conceptual framework and relevant features of the LEAM simulation environment is described, followed by the results of the St. Louis metropolitan regional application.

LEAM DESIGN

LEAM is a new modeling environment designed to support regional planning practices. Understanding the interactions between subsystems in complex urban environments will enable policy makers and planners to make better land-use management decisions. However, interacting systems behave in very complex and dynamic ways. …

The rest of this article is only available to active members of Questia

Already a member? Log in now.

Notes for this article

Add a new note
If you are trying to select text to create highlights or citations, remember that you must now click or tap on the first word, and then click or tap on the last word.
One moment ...
Default project is now your active project.
Project items

Items saved from this article

This article has been saved
Highlights (0)
Some of your highlights are legacy items.

Highlights saved before July 30, 2012 will not be displayed on their respective source pages.

You can easily re-create the highlights by opening the book page or article, selecting the text, and clicking “Highlight.”

Citations (0)
Some of your citations are legacy items.

Any citation created before July 30, 2012 will labeled as a “Cited page.” New citations will be saved as cited passages, pages or articles.

We also added the ability to view new citations from your projects or the book or article where you created them.

Notes (0)
Bookmarks (0)

You have no saved items from this article

Project items include:
  • Saved book/article
  • Highlights
  • Quotes/citations
  • Notes
  • Bookmarks
Notes
Cite this article

Cited article

Style
Citations are available only to our active members.
Buy instant access to cite pages or passages in MLA, APA and Chicago citation styles.

(Einhorn, 1992, p. 25)

(Einhorn 25)

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Cited article

The Land-Use Evolution and Impact Assessment Model: A Comprehensive Urban Planning Support System
Settings

Settings

Typeface
Text size Smaller Larger Reset View mode
Search within

Search within this article

Look up

Look up a word

  • Dictionary
  • Thesaurus
Please submit a word or phrase above.
Print this page

Print this page

Why can't I print more than one page at a time?

Help
Full screen

matching results for page

    Questia reader help

    How to highlight and cite specific passages

    1. Click or tap the first word you want to select.
    2. Click or tap the last word you want to select, and you’ll see everything in between get selected.
    3. You’ll then get a menu of options like creating a highlight or a citation from that passage of text.

    OK, got it!

    Cited passage

    Style
    Citations are available only to our active members.
    Buy instant access to cite pages or passages in MLA, APA and Chicago citation styles.

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn, 1992, p. 25).

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences."1

    1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

    Cited passage

    Thanks for trying Questia!

    Please continue trying out our research tools, but please note, full functionality is available only to our active members.

    Your work will be lost once you leave this Web page.

    Buy instant access to save your work.

    Already a member? Log in now.

    Author Advanced search

    Oops!

    An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.