The Department of Transportation has been putting up new signs at intersections and interchanges on state highways to try and prevent more people from going the wrong way. D-O-T traffic safety engineer, Willey Sorenson, says it started with a study along Highway 30 near Ames around 10 years ago. The intersections on Highway 30 where you cross two lanes to get to the lanes on the other side going the opposite direction were some of the problem areas.

In one Highway 30 intersection, they put in an acceleration lane.

He says around 90 percent of people realize they are going the wrong way and turn around within 500 to one thousand feet of making the mistake.

Sorenson says they will be around 50 percent complete getting the new wrong way markings and signs in by Thanksgiving.