Intelligent Transportation Systems-Enabled Optimal Emission Pricing Models for Reducing Carbon Footprints in a Bimodal Network

Scientists and policymakers intend worldwide emissions reduction of up to 80% of carbon dioxide (CO2) and other greenhouse gases (GHGs) in the next four decades to stabilize atmospheric concentrations. Henceforth, an immediate response from the transportation sector, one of the largest producers of GHGs (up to 30% in the United States), is critical for GHGs reduction. Recent advancement in intelligent transportation systems (ITS) offers a technical solution to implement emission pricing effectively in a reasonable period of time. Further, this strategy can foster demand for efficient vehicles and high transit ridership while reducing GHGs emission and generating revenue. Therefore, in this study, the authors propose models for understanding the reduction of GHGs emission and shifts of private vehicle trips to transit by implementing ITS-based optimal emission pricing to reduce GHGs emission by a certain percentage in a composite transportation network (transit and highway network). The bilevel models presented in this study take into account the planner's policy decision and the road user's response to such policies in a simple and methodologically robust framework. The complex decision of choosing transit over private vehicle and road user behavior in the study has been studied by mode split functions and the classical user equilibrium principle. The performance of proposed models is compared to the base case (do nothing); reductions in total GHGs emission by optimal emission pricing shows efficacy of the models. The presented methodology in this article is generalizable and can be applied to any transportation network.


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  • Accession Number: 01498957
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 21 2013 9:12AM