Written by Ed Lentz, ANR Educator, Hancock County

Drivers may see the recognizable triangular orange symbol warning drivers of slow-moving vehicles in the area for the next two to four weeks as farmers gear up for crop planting. The emblem is required on farm vehicles moving less than 25 miles per hour and horse-drawn vehicles. What you may not know is that Ohio was an agricultural leader in the development of this SMV emblem.

In the late 1950s, two researchers in the Department of Agricultural Engineering of Ohio State University, Walter McClure and Ben Lamp, completed a 10-year retrospective study of fatal tractor accidents to understand the nature and causes of highway tractor collisions. They found a significant number of fatalities related to highway travel by slow-moving vehicles. Ohio State Highway Patrol, county sheriffs, and municipal police cooperated in a later study by gathering detailed data on 708 slow-moving vehicle accidents and estimated that 65% of the motor vehicle accidents involving slow-moving vehicles were rear-ended collisions. Continue reading →