The z₀ data series contains height data relative to the water level of a river. The measurements were made perpendicular to the river bed, at a distance of one meter from each other.
For the road built next to the river, a horizontal plateau must be created, which is connected to the terrain with vertical retaining walls. The height of the road above the water line (h=10 m) and the distances of its inner and outer edges from the river (d₁=12 m and d₂=28 m) are given as parameters.
Wells must be drilled for drainage. The groundwater level is the same as the river level (±0.00). A Mini pump is sufficient for a smaller height difference, a Midi pump is required for a depth of 8 m or more, and a Maxi pump is required if the depth of the well reaches 16 m.
Since in this case the number of measured points is given, the data can be handled in a table also.