A broadside accident is worse when it involves a truck because of the size difference. Large trucks like semis, tankers, and tractor-trailers are not only larger than cars, but they also have cargo. During a truck collision, the load often spills onto the road, which leads to a secondary accident. Other vehicles may collide with the cargo even when the truck did not strike them. Innocent bystanders can suffer exposure to dangerous material. The worst instance of truck accidents was when the shipment was hazardous.