Naturally, accidents involving tractor-trailers happen for a seemingly endless list of reasons, some of which are very specific to that individual crash. A driver can't see a foggy road, for instance, or a driver looks away while trying to eat a late-night snack.
It's winter in Pennsylvania, which means most people have a bit of a heightened awareness of the danger on the roads. Winter storms can make these issues seem a bit more obvious than they are during the summer; drivers really understand that an accident is only one mistake away.
Like other Pennsylvania parents, you probably take your child to the store with you, at least occasionally. You may even make it a parent/child field trip that involves some lunch and perhaps a special treat from the store.