Transportation systems play a critical role in facilitating movement of people and goods. These systems (similar to any other major infrastructure investment) can take several years to construct and will exist for many decades. Wise planning is needed to help create and maintain high quality transportation facilities and services at a reasonable cost with minimal environmental impact and to enhance economic activity.The NOACA transportation models provide structured forecasts that establish an understanding of the transportation system performances and impacts of our interventions. These models are powerful transportation planning tools for examining and assessing the interventions as well as for identifying how the transportation system is likely to perform in the future.