In 2010, about 10,000 trucks were backed up for miles on a northern Chinese highway. The traffic jam slowed down thousands of vehicles for more than 100 kilometres (60 mi) and lasted for more than ten days. Many drivers were able to move their vehicles only 1 km (0.6 mi) per day, and some drivers reported being stuck in the traffic jam for five days. It is considered to be one of the longest traffic jams in history.