Submitting a research idea at the start of the Iowa DOT's latest research cycle https://ideas.iowadot.gov/ means your idea will have the most time in the discussion and evaluation phase and a better chance at becoming a reality. You don’t even need a submission of your own to help out! Vote or add your comments to help others improve their ideas. Feedback for the summer cycle will remain open until November 25, 2021.
Check out the Iowa DOT's annual research calendar to see how the process works throughout the year, and the Iowa DOT's Ideas site to learn more and get involved!