That's why the close fencing (12ft) is built on the outside to stop the local toerags from the council estate from climbing over in the evening and wrecking the pitches and buildings.
Also why the fence is built that way at the training ground is because it'll be harder for the local toerags to climb up and when you build such fences in your garden you want to look at the feature.
They must be 10ft -12ft fence down the side and if you look at the bottom which run along the train line then they look 6ft panels.
They aren't panels running down the side? They look like post and cross wooden beams with nailed on timber slates.