त्रिपञ्चभागिकौ द्वौ कपाटयोगौ ॥ कZ_०२.३.२४ ॥
tripañcabhāgikau dvau kapāṭayogau
त्रिपञ्चभागिकौ कपाटयोगौ द्वौ विधीयेते।
They improve security, enable predictable maintenance, and allow the state to audit workmanship and material usage.