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.
Common everyday term for road closure or no thoroughfare. 道路阻絶 is a rarer, more formal compound used in official or disaster contexts.
Means road blockade, often implying intentional closure by authorities. 道路阻絶 focuses on the state of being cut off rather than the act of blocking.
Compound of 道路 (road) and 阻絶 (blocking, obstruction). The exact historical derivation is uncertain; it is a formal Sino-Japanese term.