The China National Highway 110 traffic jam was a recurring[1] traffic jam that began to form on 14 August 2010, mostly on China National Highway 110 (G110) and the Beijing–Tibet expressway (G6), in Hebei and Inner Mongolia.[2][3] The traffic jam slowed thousands of vehicles for more than 100 kilometers (60 mi) and lasted for 12 days.[3][4][5] 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.[5] It is considered to be the longest traffic jam in recorded history.[6][7][8]