The South Dakota Department of Transportation is soliciting proposals for an 18-month research project to improve flagger safety, work-zone operations, effectiveness, and training statewide. The work includes examining injuries and near misses, evaluating current training and practices, investigating driver behavior and compliance, observing urban and rural work zones, and assessing safety technologies; deliverables include technical memoranda, recommendations and guidance, a final report, and an executive presentation. The project has $130,000 available, and proposals are due December 17, 2026, at 11:00 p.m. UTC.