अष्टशताङ्गुलं धनुः पथिप्राकारमानं पौरुषं चाग्निचित्यानाम् ॥ कZ_०२.२०.१९ ॥
aṣṭaśatāṅgulaṃ dhanuḥ pathiprākāramānaṃ pauruṣaṃ cāgnicityānām
dhanu 为八百 aṅgula;它是道路(pathi)与城墙/围墙(prākāra)的标准尺度,也是在建造火坛(agnicityā)时所用的 pauruṣa 标准。
They enable consistent planning and auditing of macro-projects (roads, walls), where small-unit counting would be slow and easier to manipulate.