When lane direction control signals are placed over the individual lanes of a street or highway, vehicular traffic may travel in any lane over which a green signal is shown, but shall not enter or travel in any lane over which a red signal is shown.
S.D. Codified Laws § 32-28-8.1
Lane direction control signals
Source: SL 1970, ch 175, § 23, § 2.
Official source: South Dakota Legislature. Reproduced from public-domain South Dakota statutes; confirm against the official source for the current text. Not legal advice.