Easement Deeds

Data is based on recorded easement deeds. Easements are entered into GIS using coordinate geometry from 10/99 forward. Before 10/99, data is digitized based on deed books residing in Engineering Division.本数据集基于已备案的地役权契约（easement deeds）构建。1999年10月起，地役权数据通过坐标几何法录入地理信息系统（Geographic Information System，GIS）；1999年10月之前的数据，则依托工程部门留存的契约档案册完成数字化处理。