Regional simulations of highway and transit ITS: Travel, emissions, and economic welfare effects

Various problems in the regional modeling of ITS are discussed. We then review previous research on the effects of ITS highway and transit technologies on travel and emissions, and critique these studies. Then, we outline our past research methods and findings and describe the weaknesses of these studies. This review is followed by descriptions of two recent projects, one simulating automated freeways and one simulating advanced transit technologies. These two types of technologies pose substantial and different sets of problems for modelers. We describe the economic welfare model we adapted and applied in these projects. We conclude with an outline of our current modeling improvements and how these relate to the other advancements being made in related modeling areas.