Agenda - 10-12-1999 - 2 - Laserfiche WebLink

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BOARD OF COUNTY COMMISSIONERS WORK SESSION OCTOBER 12,1999 COMPREHENSIVE PLAN GIS PRESENTATION OF "GOOP" PLANNING MODEL Introduction: The "GOOP" (Growth Optimum Overlay Plan) model was developed by the Orange County Planning staff. The intent of the basic model was to visualize a growth model using GIS. Planning theory and public facility attributes in Orange County were the basis of the map. Various layers of information were created and values were assigned to buffers (linear areas of a particular width) depending on the relative proximity of the service. The highest value of 5 was assigned to an area where growth would be acceptable because a specific attribute, such as a major transportation corridor, was located within 2 miles. The value decreases as distance increases. The majority of model attributes (i.e. transportation, urban, public and non - public services) illustrate where growth should be directed. The second part of the model illustrates where growth should not occur such as watersheds, wildlife corridors and poor soils. In this case, low values were assigned to these areas so the model, when averaging all the attributes, would reflect the lowered growth value and therefore the relative sensitivity of developing in that area. Zoning layers were not added since they are a secondary construct of a mix of variables. The final product of this model can be to reflect patterns of land use intensity and location including environmental constraints. The model also notes the relative efficiency of providing services to different areas. The model can serve as a preliminary growth plan on which to develop a land use element and implementing zoning regulations. A thorough analysis of the various urban growth areas will be an important aspect of the master plan. WEIGHT PLANNING ATTRIBUTE .20 I. TRANSPORTATION LAYER 5 — within 2 miles of I- 40/1 -85 4 — within 4 miles of I- 40/1 -85 3 — within 6 miles of I- 40/1 -85 2 — within 8 miles of I- 40/1 -85 1 -1 mile of NC54, NC86, NC57, NC157, NC49, US70 0 — Remainder II. URBAN SERVICE LAYER .20 A. WATER AND SEWER 5 — Within Existing and proposed Service Area 4- 3— 2- 1- 0 — Remainder Note: Differentiation between existing and proposed infrastructure was not available at this time in GIS format but would be a good determinant to promote the efficient use of existing facilities before utility extension are considered. gAcraig \bocc- gis \10- 12 -99 \dg