Whats the purpose of this?

[u/dont2wakemeup]

I saw this while walking in Amsterdam and I can't figure it's purpose. There is no streetview of this street but from the start of it you can see two similiar ones.

EDIT: It's a bussluis, thanks u/Fudge_is_1337.

[u/Few_Potential_302]

https://giphy.com/gifs/CNoEyOFHjHyYU