Section 6: Plan Technical Analysis and Performance (PDF, 2.97 MB)
The 2040 Plan makes substantial contributions toward greater mobility and reduced delay for people and goods traveling in the region. Improved access to regional activity centers facilitates economic growth and development. In this section are measures that dimension the Plan’s performance and its impact on the region.
Air Quality Conformity
The federal Clean Air Act specifies the analysis that must be conducted to show progress in achieving or maintaining the National Ambient Air Quality Standard (NAAQS). MPOs are responsible for making conformity determinations for both their long range transportation plan and for their short range Transportation Improvement Program (TIP).
To demonstrate that the Plan conforms with the requirements of the Clean Air Act, the analysis must show that emissions from transportation sources do not exceed established emission “caps” (budgets). The companion document “Air Quality Conformity Determination for the Pittsburgh Transportation Management Area” describes SPC’s transportation modeling process, the methods used to develop emission estimates and the results of the conformity analysis.
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