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框架（Oregon GIS Framework）的组成要素之一。本主题图层用于描绘俄勒冈州的城市增长边界（Urban Growth Boundaries，UGBs）。该图层的线要素由多方共同绘制完成，数据来源包括俄勒冈州土地保护与发展部（Oregon Department of Land Conservation and Development，DLCD）、俄勒冈州交通局（Oregon Department of Transportation，ODOT）、大都会区域政府理事会（Metro Regional Council of Governments，Metro）、各郡县及城市的地理信息系统部门，以及俄勒冈州行政服务部-地理空间企业办公室（Oregon Department of Administrative Services - Geospatial Enterprise Office，DAS-GEO）。城市增长边界覆盖的区域为城市周边的未合并土地，用于标示该城市未来20年的规划扩张范围。当城市需要拓展住宅、商业、工业或公共用地时，可从其城市增长边界范围内征用所需土地；若城市在现有城市增长边界内无法获得足够用地，则可申请扩大边界范围。首批城市增长边界于1973年由俄勒冈州议会依据《俄勒冈州全域规划目标》通过第100号参议院法案（Senate Bill 100）设立。全域规划方案的第14项目标为：“推动乡村用地向城市用地有序高效转型，将城市人口与就业岗位承载在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分章（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审批，并由俄勒冈州土地保护与发展部（DLCD）予以确认。该流程要求城市向DLCD提交《确认后规划修正案》（Post Acknowledgement Plan Amendment，PAPA），以供DLCD审核其是否符合第14项目标要求。《确认后规划修正案》的提交材料需包含用于勾勒城市增长边界修订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域城市增长边界图层。本图层的线要素与属性信息均通过DLCD表格数据库中收录的城市《确认后规划修正案》提交材料进行核验，以确保所有上报至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属性字段用于标示DLCD确认该城市增长边界修订内容的年份。2022年，DLCD确认了以下城市增长边界的修订内容：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）与康登（Condon）的城市增长边界进行了修正，以体现当前已确认的边界范围。