The South Dakota Department of Transportation (SDDOT) has contracted Daktronics (NASDAQ-DAKT) of Brookings, South Dakota, to provide upgraded dynamic message signs (DMS) across the state as part of a wide-reaching transportation safety initiative. The effort includes replacing 30 aging signs and installing one additional unit, covering all DMS locations along Interstates 29 and 90. Originally installed more than two decades ago, the state’s existing amber displays had reached the end of their service life. The new 20-millimeter full-color display…