This is a pictograph of a bend in the road. It is the noun bend.
Illustrative Text Reference:
Mohenjo-daro: Seal: M-307 a: Jagat Pati Joshi and Asko Parpola, 1987: Corpus of Indus Seals and Inscriptions: Volume 1: Page 76: Collections in India: Suomalainen Tiedeakatemia.
It is interesting that the motif which accompanies inscription M-307 depicts someone separating two tigers. The text says that the driver or drivers cut the bend in the road. Thus, it appears to
depict an early example of road rage, and demonstrates the importance of the link between the motif and the text.
Indus Script Sign Number 1023: List of Sign Variants: Iravatham Mahadevan, 1977: The Indus Script: Texts, Concordance and Tables: The Director General Archaeological Survey of India.