Before revision: Historical events China The August 2010 traffic jam in the Beijing-Zhangjiakou highway in Hebei province, China, is considered the world's worst traffic jam ever, as traffic congestion stretched more than from August 14 to the 26, including at least 11 days of total gridlock, with some drivers spending up to 5 days to cross this stretch of highway.
After revision:  The August 2010 traffic jam in the Beijing-Zhangjiakou highway in Hebei province, China, is considered the world's worst traffic jam ever, as traffic congestion stretched more than from August 14 to the 26, including at least 11 days of total gridlock, with some drivers spending up to 5 days to cross this stretch of highway.