Seems to be north-south.

This is a drawing of the approximate layout under the roofing: https://drive.google.com/file/d/1wj9bKL2n6XH9nh06gKe4ADx0RAw6MIag/view

This is the view to the underpass from the other side: https://drive.google.com/file/d/1rsCNwzbVrG3aGXCGlA19Keve09a1fueE/view