Underride and Jackknife Crashes: Causes and Evidence
What to Know About Underride and Jackknife Tractor-Trailer Crashes Underride and jackknife crashes are two kinds of tractor-trailer collisions that frequently cause severe injuries. An underride crash happens when a smaller vehicle slides partly or completely beneath a trailer or truck body. In a jackknife, the tractor and trailer fold toward each other, often across several lanes. Each raises its own evidence questions for an 18-wheeler accident lawyer. Why underride cr