Dataset Direct Download Service (WFS): SUP_T1 — Protection Areas (Railway)

The attitude of an easement is the spatial field (i.e., the geographical area) within which the easement applies. This space field can be defined either in 2D or in 3D in particular in the specific cases of airport clearance easements, easements to protect radio transmission centres.地役权（easement）的空间效力范围，即该权利生效所覆盖的空间场域（亦即地理区域）。该空间场域可采用二维或三维方式进行界定，针对机场净空地役权（airport clearance easements）、无线电传输中心保护地役权等特定场景，三维界定方式尤为常用。