You 're in danger each time you drive your tractor on the highway. Studies at Iowa State are helping to pinpoint some of the problems, their causes and possible solutions. Meanwhile, here are some tips for protecting yourself.
Wardle, Norval J.
"Tractors + Traffic = Trouble,"
Iowa Farm Science: Vol. 15
, Article 4.
Available at: http://lib.dr.iastate.edu/farmscience/vol15/iss11/4