Traffic Study Calculates How Much Time to Allow for Congestion in Cities

Drivers in the nation's most-congested cities should add 38 to 95 minutes to many routine 20-minute trips if they want to arrive on time, warns a new study on gauging unpredictable traffic.
February 5, 2013

Drivers in the nation's most-congested cities should add 38 to 95 minutes to many routine 20-minute trips if they want to arrive on time, warns a new study on gauging unpredictable traffic.

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