It doesn't right.. ".. Busses are standing?"
I think the preferred spelling is "buses". There is some discussion about it online.
Maybe it should be accepted here, I'm not sure.
Both are fine according to http://www.dictionary.com/browse/bus .
I believe that the plural of bus is buses. But 'are parking' implies an ongoing act. I think the literal translation makes more sense. if the buses are not moving then they are not parking, they are standing.