noun
A dead-end street, especially one with a rounded turnaround area. Used in urban planning and everyday contexts.
from French
この住宅地にはクルドサックが多く、通り抜けができない。
This residential area has many cul-de-sacs, so you can't drive straight through.
Spelling with interpuncts reflecting the French original; less common in everyday use.
袋小路 is the native Japanese term for a dead-end street, while クルドサック specifically refers to a cul-de-sac with a rounded end, often in Western-style residential planning.
Borrowed from French 'cul-de-sac', literally 'bottom of the sack'.