DUEM Dynamic Urban Evolution Modeling Yichun Xie Center
DUEM: Dynamic Urban Evolution Modeling Yichun Xie Center for Environmental Information Technology and Application Eastern Michigan University George Xian EDC, USGS Urban Dynamics Workshop 01 -29 -2001
Field
A Flowchart of DUEM Simulation Procedures Initial Landuse Units a new round simulation Not successful simulations New Landuse Units dead A successful simulation rowt Site selection for new growth A new landuse unit generated Regional control & policy check Neighbor check at new site h Land use type for new growth Transp. check at new site Accepting new growth Transportation condition check ew g ing n Neighbor condition check inactive lidat Generating new growth Active seeds Entire system check & update Inva Viability (age) check
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 active seeds (landuse units) Load simulation rules
Turn on constraint Factor Load constraint grid Create environment
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 % Geo. CA-Urban Rule Parameters: Blank Vacant Land 255255255 Street. Node Street Node 139000000 0 0 1. 00 2. 00 150 100 4 3 2 10 60 70 T 4100 50 0 Street. Vertex Street Vertex 139000000 House Housing 255173091 8 30 3000 0 1. 00 2. 00 125 125 5 2 0 95 0 5 Industry 123123192 25 20 3000 0 1. 00 2. 00 125 125 15 15 40 10 Commerce 255000000 30 10 3000 0 1. 00 2. 00 125 125 10 15 0 10 Others 00000
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
- Slides: 24
