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You are here: Home / Archives for Planning Time Index

Planning Time Index

As Traffic Jams Worsen, Commuters Allow Extra Time for Urgent Trips

March 1, 2013

As traffic congestion continues to worsen, trip times become more unpredictable. Researchers now have a way to measure that degree of unreliability.

Filed Under: Texas Transportation Researcher, Volume 49, Number 1 Tagged With: emissions, Planning Time Index, PTI, Urban Mobility Report

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