Indicative focus areas of foundation problems — WMS

Map with indicative areas of focus on foundation issues. This map shows the number of houses with a year built before 1970 in regions with less load capacity.标注地基基础问题重点关注区域的地图。本地图展示了荷载承载能力不足区域内，建造年份早于1970年的房屋数量。