1.
one-way trip
A journey in one direction only, as opposed to a round trip.
片道 refers to travel in one direction only.
Common expressions:
- 片道切符 (one-way ticket)
- 片道料金 (one-way fare)
- 片道〜時間 (~ hours one way)
Opposite:
- 往復 (round trip)
- 往復切符 (round-trip ticket)
The kanji 片 means 'one side' or 'half,' indicating only half of a round trip.