What does traffic cost Boston drivers? About $1,400 annually

Traffic backed up in Forest Hills in Jamaica Plain in June.Dina Rudick/Globe Staff

Boston-area drivers spent an extra 64 hours in the car due to traffic in 2014, a new study found.

During that time, they burned an extra 30 gallons of gas and also lost time they could have been productive. It added up to an estimated $1,388 lost per driver, the study found.

The findings were presented in a report on urban car commuting released this month by the Texas A&M Transportation Institute and the traffic data company Inrix.

Congestion in Boston has increased from the early 1980s, when the annual delay per car commuter was estimated at 31 hours. But the extra time spent in the car hit more than 60 hours in 2000, and it’s generally continued at that rate, with a slight dip during the economic recession in 2008 and 2009.

Now, the report says, “The national congestion recession is over.”

Boston ranked as the sixth worst major metropolitan area for traffic congestion. Washington, D.C., came in at the top of the list, with a yearly 82 hours in traffic delays per car commuter, followed by Los Angeles, San Francisco, New York, and San Jose.