suspension, interruption, stoppage, tie-up, cessation
Example sentences
地震で鉄道の運行が不通になった。
The train service was suspended by the earthquake.
大雪のために鉄道は不通になっている。
Because of the heavy snow, the railroad traffic has been interrupted.
大雪のために鉄道が不通になることが良くある。
It often happens that railway traffic is suspended by a heavy snowfall.