2013 Fiscal Year Final Research Report

Two Novel Approaches for Sustainable and Efficient Transportation Networks: Emission Pricing / Emission Permits

Research Project

Project/Area Number	24656301
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Single-year Grants
Research Field	Civil engineering project/Traffic engineering
Research Institution	Tohoku University
Principal Investigator	NAGAE Takeshi 東北大学, 工学(系)研究科(研究院), 准教授 (30379482)
Project Period (FY)	2012-04-01 – 2014-03-31
Keywords	交通計画 / 持続可能性 / 環境料金 / 排出権取引
Research Abstract	The purpose of this study is to propose three new schemes: static emission pricing (SEP), evolutionary emission pricing (EEP), and tradable emission permits (TEP), and analyze the conditions of the three schemes necessary to achieve the sustainable system-optimal (SSO) traffic assignment in a decentralized manner. In the SEP scheme, the road manager should estimate the traffic demand, which is difficult to observe, to reach an optimal solution to the SSO problem. In the EEP scheme, the road manager can find the appropriate Lagrange multiplier of the SSO problem through some trial-and-error adjustments to achieve the SSO assignment. In the TEP scheme, the road manager just sets the TEP market and keeps it competitive without doing anything. These processes imply that the SEP scheme is difficult to implement, the EEP scheme and the TEP scheme are the possible approaches to achieve the SSO assignment on the current status of our study.