1.
while driving; during driving
The state of being in the process of driving a vehicle.
運転中は電話するな。
Don't use the phone while driving.
運転中にメールを見るのは危ない。
Looking at emails while driving is dangerous.
2.
in operation; running
The state of a machine or system currently being in operation.
このエレベーターは運転中です。
This elevator is in operation.
運転中 combines 運転 (driving/operation) with 中 (during/in the middle of).
COMMON COLLOCATIONS:
- 運転中の事故 (accident while driving)
- 運転中は注意 (be careful while driving)
SIMILAR EXPRESSIONS:
- 走行中: while the vehicle is moving
- 作動中: in operation (for machines)