Urban Growth Boundaries

This data layer is an element of the Oregon GIS Framework. This theme delineates urban growth boundaries (UGBs) in the state of Oregon. The line work was created by various sources including the Oregon Department of Land Conservation and Development (DLCD), the Oregon Department of Transportation (ODOT), Metro Regional Council of Governments (Metro), county and city GIS departments, and the Oregon Department of Administrative Services - Geospatial Enterprise Office (DAS-GEO). UGB areas consist of unincorporated lands surrounding a city that show where the city plans to grow over the next 20 years. When a city needs to develop more residential, commercial, industrial, or public land, it annexes the needed area from its UGB. If a city runs out of needed land within the UGB, it can expand its UGB. Original UGBs were established under the Oregon Statewide Planning Goals in 1973 by the Oregon State Legislature (Senate Bill 100). Goal 14 of the statewide planning program is, "To provide for an orderly and efficient transition from rural to urban land use, to accommodate urban population and urban employment inside urban growth boundaries, to ensure efficient use of land, and to provide for livable communities." The process and requirements for designating and amending UGBs are in Oregon Administrative Rules, Chapter 660, Division 24 (OAR 660-024). Designating or amending a UGB requires a public process, as required by Planning Goal 1, followed by approval by both the city and county elected officials and acknowledgement by the DLCD. This process includes the city submitting a Post Acknowledgement Plan Amendment (PAPA) to DLCD to review for consistency with Goal 14. The PAPA submittal includes GIS files that delineate the changes to the UGB. DLCD aggregates the local GIS layers into the statewide UGB layer. UGB line work and attributes are verified with the city PAPA submittals entered in DLCD’s tabular database to ensure that all UGB updates reported to DLCD have been included in this dataset. UGBs that are currently in the appeal process at the time of publication of this layer are not included. The effDate attribute indicates the year in which the UGB amendment was acknowledged by DLCD. In 2022, DLCD acknowledged amendments to the following UGBs: Central Point, Dayton, Phoenix, and Turner. Corrections were also made to the Astoria and Condon UGBs to reflect the current acknowledged boundary.本数据图层为俄勒冈州地理信息系统（GIS, Geographic Information System）框架的组成元素。本数据集主题为俄勒冈州范围内城市增长边界（UGBs, Urban Growth Boundaries）的划定范围。该图层的矢量线要素由多方共同制作，包括俄勒冈州土地保护与发展局（DLCD）、俄勒冈州交通运输局（ODOT）、大都会区域政府理事会（Metro）、各县市地理信息系统部门，以及俄勒冈州行政服务部地理空间企业办公室（DAS-GEO）。城市增长边界区域指环绕城市的未合并土地，用于标识该市未来20年的规划扩张范围。当城市需要开发更多住宅、商业、工业或公共用地时，可从其城市增长边界范围内并入所需土地；若城市在现有边界内耗尽可用土地，则可申请扩大城市增长边界。首批城市增长边界于1973年由俄勒冈州议会依据《全州规划目标》通过第100号参议院法案设立。全州规划方案第14项目标为："实现乡村用地向城市用地的有序高效转型，将城市人口与就业岗位容纳于城市增长边界范围内，保障土地高效利用，并打造宜居社区"。城市增长边界的划定与修订流程及要求详见《俄勒冈州行政规则》第660章第24分部（OAR 660-024）。划定或修订城市增长边界需遵循规划目标1的要求开展公众参与流程，随后需获得市、县民选官员的批准，并由DLCD予以确认。该流程要求城市向DLCD提交《确认后规划修正案》（PAPA, Post Acknowledgement Plan Amendment），以由DLCD审核其是否符合第14项目标。提交的《确认后规划修正案》需附带用于划定城市增长边界变更范围的地理信息系统文件。DLCD将各地理信息系统本地图层整合为全州统一的城市增长边界图层。本数据集将对照DLCD表格数据库中收录的各城市《确认后规划修正案》提交材料，对城市增长边界的矢量要素与属性信息进行核验，确保所有上报至DLCD的城市增长边界更新内容均已纳入本数据集。本图层发布时仍处于申诉流程中的城市增长边界未被纳入本数据集。effDate属性字段用于标识DLCD确认该城市增长边界修订内容的年份。2022年，DLCD确认了以下城市的增长边界修订内容：森特勒尔波因特（Central Point）、代顿（Dayton）、菲尼克斯（Phoenix）以及特纳斯（Turner）；同时还对阿斯托里亚（Astoria）和康登（Condon）的城市增长边界进行了修正，以反映当前已确认的边界范围。