Translation guide
Describes traffic that moves in only one direction. In Japanese, this is commonly expressed with 一方通行 (ippō tsūkō) for roads, but the concept can also appear in other contexts like one-way streets or directional flow.
To describe a road, street, or lane where vehicles can only travel in a single direction.
The standard term for one-way traffic, used on signs and in everyday speech.
この道は一方通行です。
This road is one-way.
一方通行の標識を見落とさないでください。
Please don't miss the one-way sign.
Explicitly says 'one-way road', often used in explanations or formal contexts.
ここは一方通行の道路なので、注意してください。
This is a one-way road, so please be careful.
To refer specifically to a street that only allows traffic in one direction.
Common way to say 'one-way street'.
この通りは一方通行です。
This street is one-way.
To describe a situation where something moves in only one direction, like communication or effort.
Means 'one-sided' and is used for unbalanced relationships or communication.
彼との会話はいつも一方的だ。
Conversations with him are always one-way.
Directly translates 'one-way communication', used in business or psychology contexts.
上司からの指示は一方通行のコミュニケーションになりがちだ。
Instructions from the boss tend to be one-way communication.
一方交通 (ippō kōtsū) is not a standard term. Always use 一方通行 for one-way traffic.