I-40-Cary-Raleigh-at-US-1Interstate 40 is a critical freeway that serves regional, statewide, and national purposes.  I-40 in the Triangle connects communities in Orange, Durham, Wake and Johnston counties, including the Research Triangle Park and RDU Airport, with each other and the rest of North Carolina and the nation.

I-40 is the most heavily-traveled and congested highway in the region. Our growing region will require additional investments in the I-40 corridor if the “Triangle’s Main Street” will continue to be able to provide the safe and efficient mobility needed for our economic vitality and quality of life.

Current RTA focus

Advance the staged construction of targeted widening / express lane construction and interchange improvements on I-40 region-wide

Recent RTA and partner successes

  • Aviation Parkway and Airport Boulevard interchange improvements ranked 1 and 2 in North Carolina for initial Strategic Transportation Investments prioritization in March 2014
  • Procured funding for the I-40 / Aviation Parkway interchange through the NC Mobility Fund
  • Accelerated the widening of I-40 between Raleigh and Cary, completed in 2011, with a 70% reduction in travel time variability and a 30% improvement in overall travel time
  • Advocated for two-lane widening of I-40 instead of four allowing the project to commence in 2009
  • Coordinated a sign audit in 2008 on I-40 in Raleigh to enhance future guidance for motorists
  • Spearheaded the drive to accelerate the widening between Cary and Raleigh in the draft 2007 Transportation Improvement Program


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