Gentrifying neighborhoods between 1990 and 2000 (2000 Census Tracts) for Connect Socal 2024

This dataset includes the data used to develop Maps 8 and 9 for the Connect SoCal 2024 Equity Analysis Technical Report, adopted on April 4, 2024. The dataset includes a field with information about gentrification during the time period 1990-2000 in the SCAG region based on decennial census data. In this dataset, gentrification is defined as: (1) tract median household income in the bottom 40 percent of the countywide income distribution at the beginning of the period, (2) increase in college-educated people (as the percentage of population aged 25 years and older at the beginning of the period) in the top 25 percent of the countywide distribution, (3) no less than 100 people aged 25 years at the beginning of the period, and (4) over 50 percent of the tract land area within a census defined urbanized area. This dataset was prepared to share more information from the maps in Connect SoCal 2024 Equity Analysis Technical Report. For more details on the methodology, please see the methodology section(s) of the Equity Analysis Technical Report: https://scag.ca.gov/sites/main/files/file-attachments/23-2987-tr-equity-analysis-final-040424.pdf?1712261887 For more details about SCAG's models, or to request model data, please see SCAG's website: https://scag.ca.gov/data-services-requests.本数据集包含用于编制《Connect SoCal 2024公平分析技术报告》第8、9号地图的相关数据，该报告已于2024年4月4日正式通过。 本数据集设有一个字段，收录基于十年一次人口普查数据得到的南加州政府联盟（South Coast Association of Governments, SCAG）区域1990至2000年间的绅士化相关信息。 本数据集对绅士化的判定标准如下：(1) 研究期初，该普查街区（census tract）的家庭收入中位数处于所在县全域收入分布的后40%分位；(2) 25岁及以上人口中受过高等教育人群的占比，在研究期初处于所在县全域分布的前25%分位且实现增长；(3) 研究期初25岁及以上人口数量不少于100人；(4) 该普查街区超过50%的土地面积位于普查划定的城市化区域内。 本数据集的编制旨在公开《Connect SoCal 2024公平分析技术报告》配套地图的更多细节信息。 如需了解方法论的更多细节，请参阅该公平分析技术报告的方法论章节：https://scag.ca.gov/sites/main/files/file-attachments/23-2987-tr-equity-analysis-final-040424.pdf?1712261887。 如需了解南加州政府联盟（SCAG）的模型详情或申请模型数据，请访问SCAG官方网站：https://scag.ca.gov/data-services-requests。