Continuation of Research to Determine the Effectiveness of ITS on Borman Expressway

This study is a continuation and the final phase of the SPR-2338 project that involves monitoring the ambient air quality levels adjacent to the Borman Expressway. The purpose of this phase was to classify the traffic conditions along the Borman Expressway in terms of ambient air quality levels. The duration of the phase was from April 1, 2002 to April 30, 2004. The study has shown that, in a close proximity to the Borman Expressway, air quality levels mirror the dynamic nature of traffic along the Borman, despite being surrounded by major industrial stationary sources. Therefore, a descriptive model was developed in the form of a classification tree, which characterizes the impact of different Bormantraffic levels on the local ambient air quality. This tree contains 16 different traffic clusters and shows a 46% improvement in local air quality from the worst-case congestion levels along the Borman Expressway to the best-case ones