Air Quality

We can’t see it. We can’t smell it. But air quality can have a significant impact on the transportation planning process. 

The Air Quality Conformity Determination Report documents compliance with the provisions of the Clean Air Act Amendments of 1990 (CAAA) and the Safe Accountable Efficient Transportation Equity Act: a Legacy for Users - 2005. The conformity determination for the current Transportation Improvement Program (TIP) is based primarily on a regional emissions analysis that utilized the transportation networks in the current adopted and conforming long-range Metropolitan Transportation Plans (MTPs) and the emissions factors developed by the North Carolina Division of Air Quality (NCDAQ).
  1. Air Quality Conformity Determination Report (PDF)

    Read the conformity determination report for the 2012-2018 Transportation Improvement Program.

  2. Pollution Affecting Transportation Planning

    Find out what types of pollution affect planning for the MPO.

  3. Urban Area Classifications & Emission Levels

    Based on the air quality monitoring results, the area can be classified into a particular category.

  4. Glossary

    See a list of terms and definitions related to air quality issues.