In this ideograph, a track enters a lane. The end of the lane is blocked. Hence, it is an ideograph for the noun cul-de-sac.
Illustrative Text Reference:
Mohenjo-daro: Seal: M-1707 a: Asko Parpola, B. M. Pande, and Petteri Koskikallio, 2010: Corpus of Indus Seals and Inscriptions: Volume 3,1: Page 23: New material, untraced objects, and collections outside India and Pakistan: Suomalainen Tiedeakatemia.
Image Credit:
Cul-de-sac: Lynn Fawcett, 2018.