1.
one-way traffic; one-way street
A road or passage that allows traffic in only one direction.
この道は一方通行だ。
This road is one-way.
一方通行を逆走してはいけない。
You must not drive the wrong way on a one-way street.
駅前は一方通行が多い。
There are many one-way streets near the station.
2.
one-sided (figurative)
Communication or a relationship that only goes in one direction, lacking reciprocation.
彼との会話は一方通行だ。
Conversations with him are one-sided.
一方通行の恋は辛い。
One-sided love is painful.
情報が一方通行にならないように注意する。
We take care that information flow isn't one-directional.
一方通行 has both literal and figurative uses.
TRAFFIC SIGNS:
One-way streets in Japan are marked with a blue rectangular sign showing a white arrow, often accompanied by 「一方通行」 or 「進入禁止」 (no entry) signs.
FIGURATIVE USAGE:
Used to describe communication, relationships, or information flow that lacks reciprocity or mutual exchange.
OPPOSITE:
- 相互通行: two-way traffic/communication