This study develops a methodology to distinguish vacant land types and introduces a classification scheme using a citywide vacancy inventory. Using Minneapolis, MN as a study area, three land characteristics associated with vacant properties – parcel size, ownership, and land use – are examined. Kaplan-Meier survival rates are then estimated to evaluate and compare the durations of vacancy between 2005 and 2015. The results indicate that a vacant property, in general, has the lowest probability to remain vacant within its first two years after becoming vacant. Smaller-sized parcels tend to result in a longer-term vacancy; while publicly owned, industrial, institutional, and/or recreational vacancies show similar tendencies. From this analysis, this study then develops a six-category classification scheme that can be used as (1) a novel tool to inventory vacant urban lands, (2) a diagnostic tool to identify repurposing opportunities, and (3) reliable means of comparing vacant properties across localities.

这项研究开发了一种方法来区分空置土地类型，并介绍了使用全市空置清单的分类方案。以明尼苏达州明尼阿波利斯市为研究区域，考察了与空置物业相关的三个土地特征：地块大小，所有权和土地使用情况。然后估计Kaplan-Meier生存率，以评估和比较2005年至2015年之间的空置持续时间。结果表明，空置财产通常在空置后的头两年内空置的可能性最低。较小的包裹往往会导致长期空缺；公有，工业，机构和/或娱乐场所的空缺表现出相似的趋势。根据此分析，