Jackknife and Underride Crashes in Truck Accident Claims
Underride and Jackknife Crashes in Truck Accident Claims Underride and jackknife crashes are two tractor-trailer crash types that often cause severe injuries. An underride crash happens when a smaller vehicle slides partly or completely beneath a trailer or truck body. A jackknife occurs when the tractor and trailer fold toward each other, often blocking several lanes. Each type raises its own evidence questions for a truck accident lawyer. Why underride crashes are so d