There's one just like this North of Hatton Cross Station (just outside the perimeter road of Heathrow Airport) ... https://www.openstreetmap.org/#map=18/51.467

There's one just like this North of Hatton Cross Station (just outside the perimeter road of Heathrow Airport) ... https://www.openstreetmap.org/#map=18/51.46733/-0.42398 https://www.openstreetmap.org/#map=18/51.46733/-0.42398