Absolute Constrained Areas (ACAs) - SCAG region

This is the Absolute Constrained Areas (ACAs) in the SCAG Region developed for Connect SoCal, the 2020-2045 Regional Transportation Plan/Sustainable Communities Strategy (RTP/SCS). ACAs include Tribal Nation Lands, Military Lands, Open Space and Conserved Lands, Sea Level Rise Areas (2 feet), Farmlands in Unincorporated Areas.Tribal Nation Lands – SCAG utilized the Census Bureau’s American Indian/Alaska Native/Native Hawaiian (AIANNH) Areas database for 2017 to identify tribal nations in the SCAG region;Military Lands – Locations of military lands are derived from SCAG’s 2016 Existing Land Use Database, which underwent review and refinement by local jurisdictions through the Bottom-Up Local Input and Envisioning Process;Open Space and Conserved Lands – Data on conservation areas, open space, and parks from year 2017 comes from the Save Our Agricultural Resources (SOAR) protected areas in Ventura County, the California Conservation Easement Database, as well as the California Protected Areas Database (CPAD). Together, these data inventories represent protected open space lands, conserved areas, and conservation easements in the SCAG region and the greater State of California. Several elements were developed by aggregating and cross-checking various open space data from multiple public agencies by GreenInfo Network, and also benefit from feedback provided by local jurisdictions through SCAG’s Bottom-Up Local Input and Envisioning Process; Sea Level Rise Areas (2 feet) – Data on coastal inundation were obtained from the National Oceanic and Atmospheric Administration (NOAA) Coastal Services Center’s online mapping viewer depicting potential sea level rise and its associated impacts on the nation’s coastal areas (accessed by SCAG in 2017). These data depict the potential inundation of coastal areas resulting from a projected 2 feet rise in sea level above current Mean Higher High Water (MHHW) conditions, and underwent review by SCAG’s local jurisdictions; and Farmlands in Unincorporated Areas – Farmland information was obtained from the Farmland Mapping & Monitoring Program (FMMP) in the Division of Land Resource Protection in the California Department of Conservation. Established in 1982, the FMMP is to provide consistent and impartial data and analysis of agricultural land use and land use changes throughout the State of California. For SCAG’s purposes, data from year 2016 (and 2014 in areas where 2016 data was unavailable) underwent review and refinement by local jurisdictions through the Bottom-Up Local Input and Envisioning Process. PLEASE NOTE this data is intended for planning purposes only, and SCAG shall incur no responsibility or liability as to the completeness, currentness, or accuracy of this information. SCAG assumes no responsibility arising from use of this information by individuals, businesses, or other public entities. The information is provided with no warranty of any kind, expressed or implied, including but not limited to the implied warranties of merchantability and fitness for a particular purpose.

本数据集为服务于2020-2045年区域交通规划/可持续社区战略（Regional Transportation Plan/Sustainable Communities Strategy, RTP/SCS）项目Connect SoCal，针对南加州政府联盟（Southern California Association of Governments, SCAG）所辖区域开发的绝对约束区域（Absolute Constrained Areas, ACAs）。该绝对约束区域包含原住民保留地、军事用地、开放空间与保护用地、2英尺海平面上升淹没区以及非建制区域农田。

原住民保留地：SCAG采用2017年美国人口普查局发布的美国印第安人/阿拉斯加原住民/夏威夷原住民区域（American Indian/Alaska Native/Native Hawaiian Areas, AIANNH）数据库，识别SCAG所辖区域内的原住民部落领地。

军事用地：军事用地数据源自SCAG 2016年现有土地利用数据库，该数据集已通过地方辖区的“自下而上本地投入与构想流程”完成审核与细化优化。

开放空间与保护用地：2017年的保护区、开放空间及公园数据，来源于文图拉县“保护我们的农业资源（Save Our Agricultural Resources, SOAR）”保护区名录、加州保护地役权数据库，以及加州保护区数据库（California Protected Areas Database, CPAD）。上述数据集共同覆盖了SCAG所辖区域及整个加利福尼亚州范围内的受保护开放空间用地、保护区域与保护地役权。绿信息网络（GreenInfo Network）通过聚合、交叉校验多来源公共机构的开放空间数据完成了部分要素整合，并依托SCAG的“自下而上本地投入与构想流程”获取了地方辖区的反馈意见。

2英尺海平面上升淹没区：海岸淹没数据源自美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）海岸服务中心在线地图查看器，该工具展示了全美沿海区域潜在的海平面上升及其相关影响（SCAG于2017年获取该数据集）。此数据描绘了相较于当前平均高高潮（Mean Higher High Water, MHHW）水位上升2英尺后，沿海区域的潜在淹没范围，并已通过SCAG地方辖区的审核。

非建制区域农田：农田信息源自加州自然资源保护部土地资源保护局的农田测绘与监测项目（Farmland Mapping & Monitoring Program, FMMP）。该项目始建于1982年，旨在为整个加利福尼亚州提供一致且客观的农业土地利用与土地利用变化数据及分析成果。针对SCAG的使用需求，2016年的农田数据（2016数据缺失区域采用2014年数据）已通过“自下而上本地投入与构想流程”由地方辖区完成审核与细化。

请注意，本数据仅用于规划用途，SCAG不对本信息的完整性、时效性或准确性承担任何责任或义务。SCAG不对个人、企业或其他公共实体使用本信息所引发的任何问题承担责任。本信息不提供任何形式的明示或默示担保，包括但不限于适销性及特定用途适用性的默示担保。