Correct Example [#1866]

of: 518 Uncrossable fence or railing (ISSprOM 2019-2)
from: Vimperk, Czechia

Railing is built on the top of retaining wall and is too high and dangerous for competitors. Thus should be mapped as uncrossable.

Uncrossable railing in Vimperk, Czechia. Photo by: Luděk Krtička (CC BY-SA 4.0)
Uncrossable railing in Vimperk, Czechia. Photo by: Luděk Krtička (CC BY-SA 4.0)