The longest traffic jam took place in Beijing, China in 2010. It was over 60 miles long and traffic continued for 11 days.
Thousands of motorists have been caught up in a 60 mile tailback,
since August 14 for 11days on the National Expressway 110 between the capital
Beijing and Inner Mongolia and set
the record as the world’s longest
traffic jam.
The jam on the main north south motorway into Beijing has
been blamed on a set of road works that is intended to alleviate congestion
caused by thousands of trucks bring coal and perishable goods into the city.