Reimer Ferdinand, Kral Ulrich, Sönmez Emre Can, Hauer Friedrich, Hohensinner Severin, Wolfinger Hannah, Stuppacher Klara, Danzinger Andreas, Hengl Ingeborg, Prospero Lupina, Prunner Sarah, Rechberger Helmut
Institute for Water Quality and Resource Management, Technische Universität Wien, Karlsplatz 13/226, Vienna 1040, Austria.
Unaffiliated, Vienna, Austria.
Data Brief. 2022 Jan 23;41:107864. doi: 10.1016/j.dib.2022.107864. eCollection 2022 Apr.
Building age maps inventory the construction dates of buildings. While many cities routinely map the construction dates of present building stocks, building age maps of the distant past are mostly not available. An exception is the building age map of Vienna around 1920. It covers about 80% of the building footprint area within the city boundary in 2020 and is available in analog format only. This impedes spatial analysis of the building stock in the past and the production of time-series data for the spatio-temporal analysis of building stock developments over the last 100 years. To create the digital map, we manually vectorized 80,640 building footprints from 134 historical map sheets and assigned construction dates (i) from the analog building age map by digitizing color-encoded thematic information and (2) from a historical building registry by matching building address. From the analysis of the generated dataset we infer that the total building footprint area was 2,279 hectares. The classification of the building footprint areas by construction date shows that 14% of the buildings were older and 63% were younger than 70 years. The remaining 23% lack construction period assignments due to missing data. The resulting dataset underwent technical quality checks and external data sources were used to validate the building counts, the building presence around 1920 and the construction dates of buildings. During course of validation, we critically discuss data quality and recommend improvements. We see a practical reuse value of the data for the spatio-temporal analysis of urban buildings stocks, which facilitates urban history research as well as resource and environmental management in the city of Vienna.
建筑年代地图记录了建筑物的建造日期。虽然许多城市通常会绘制当前建筑存量的建造日期地图，但关于遥远过去的建筑年代地图大多无法获取。维也纳1920年左右的建筑年代地图是个例外。它覆盖了2020年城市边界内约80%的建筑占地面积，且仅以模拟格式提供。这阻碍了对过去建筑存量的空间分析以及对过去100年建筑存量发展进行时空分析的时间序列数据的生成。为了创建数字地图，我们从134张历史地图中手动矢量化了80640个建筑占地面积，并通过数字化颜色编码的专题信息从模拟建筑年代地图中以及通过匹配建筑地址从历史建筑登记册中确定建造日期。通过对生成数据集的分析，我们推断建筑占地面积总面积为2279公顷。按建造日期对建筑占地面积进行分类显示，14%的建筑超过70年，63%的建筑不到70年。其余23%由于数据缺失而没有建造时期的记录。生成的数据集经过了技术质量检查，并使用外部数据源来验证建筑数量、1920年左右的建筑存在情况以及建筑物的建造日期。在验证过程中，我们批判性地讨论了数据质量并提出了改进建议。我们认为这些数据对于城市建筑存量的时空分析具有实际重用价值，这有助于维也纳市的城市历史研究以及资源和环境管理。
