changing lanes; lane change
Primarily used in driving contexts; refers to the act of moving from one traffic lane to another.
When changing lanes on the highway, please always use your turn signal.
Sudden lane changes can cause accidents.
change of course; changing one's field of study
Figurative use for altering one's academic path, career direction, or life plan.
After entering university, I started thinking about changing my field of study.
He changed his course from medical school to law school.