Requires MoDot to obtain the approval of the governing body of a county, city, town, or village prior to constructing any roundabouts on certain roadways

HB 1484 requires Missouri's transportation department (MoDOT) to obtain written consent from local governments before building roundabouts on state or federal highways within city, town, or county boundaries. It directly affects MoDOT and local officials (like mayors or city councils), who must respond to MoDOT's request within 30 days. The bill mandates this approval step for all roundabouts on designated roadways, defining a roundabout as a traffic circle where vehicles move counterclockwise around a central island. This change shifts decision-making authority to local communities for infrastructure projects impacting their areas.