Dr. Yichun Xie, Professor and Director Institute for Geospatial Research and Education

Dr. Yichun Xie, Professor and Director

Institute for Geospatial Research and Education

Eastern Michigan University

USGS-GLSC, Ann Arbor, MI

December 12, 2002

Projecting Urban Land Use Changes:

DUEM - Dynamic Urban Evolution Modeling

Field

dead

inactive

Initial Landuse Units

Viability (age) check

Neighbor condition check

Active seeds

Transportation condition check

Site selection for new growth

Land use type for new growth

Regional control & policy check

Neighbor check at new site

Transp. check at new site

A new landuse unit generated

Entire system check & update

New Landuse UnitsNot successful

simulations

A successful simulation

a new round simulation

Gen

erat i ng n

ew grow

thA

ccep

tin

g n

ew g

row

th

Invalidating new grow

th

A Flowchart of DUEM Simulation Procedures

A Flowchart of DUEM Software Running Procedures

Turn on constraint Factor

Create environment

Load constraint grid

Load initial landuse file (grid)

Setup age property

Load simulation rules

Load active seeds (landuse units)

Turn on constraint Factor

Create environment

Load constraint grid

A Flowchart of Creating the Regional Constraint Grid through Spatial Analysis

Load initial landuse file (grid)

The Initial Landuse File Defines the Background of a Simulation

Background

Setup age property

Load active seeds (landuse units)

Load simulation rules

% GeoCA-Urban Rule Parameters:Blank Vacant Land 255255255StreetNode Street Node 139000000 0 0 1.00 2.00 2.00 150 100 150 100 150 100 150 100 4 3 2 10 60 70T 4100 50 0StreetVertex Street Vertex 139000000House Housing 255173091 8 30 3000 0 1.00 2.00 2.00 125 125 125 125 125 125 125 125 5 2 0 95 0 5 95 0 5Industry Industry 123123192 25 20 3000 0 1.00 2.00 2.00 125 125 125 125 125 125 125 125 15 15 40 10Commerce Commerce 255000000 30 10 3000 0 1.00 2.00 2.00 125 125 125 125 125 125 125 125 10 15 0 10Others Others 000000000

How to Define Simulation Rules Graphically - Street Node As an Example - 1

How to Define Simulation Rules Graphically - Street Node As an Example - 2

How to Define Simulation Rules Graphically - Housing Landuse As an Example - 1

How to Define Simulation Rules Graphically - Housing Landuse As an Example - 2