road block; road closure
Rare formal term for a road being blocked or cut off, often due to disaster or construction. More common alternatives include 通行止め or 道路封鎖.
Heavy rain caused a road block, isolating the village.
Compound of 道路 (road) and 阻絶 (blocking, obstruction). The exact historical derivation is uncertain; it is a formal Sino-Japanese term.