This is the 12141st most frequent Swedish word.
rullande
"Rullande" means "rolling" or "ongoing" in English.
In this sentence, 'rullande' describes the motion or action of the road seeming to move or roll, perhaps metaphorically.
Bilar rullar fram på den rullande vägen.
Cars roll forward on the rolling road.
Here, 'rullande' is used to express the idea of the schedule rotating or changing regularly over time, indicating variability or rotation.
Han arbetar på ett rullande schema.
He works on a rolling schedule.
This instance of 'rullande' symbolizes continuous motion without staying stationary, applied metaphorically in a proverb.