PAPAIX Claire

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Based on an across-the-board survey conducted among residents of Stockholm, Helsinki and Lyon, we explore the opinions on three policy measures to combat road congestion: congestion charging, free public transport and building more roads. The support for the two latter policies is substantially higher than the support for congestion charging, which is only supported by a majority in Stockholm. Self-interest is important for the formation of the opinion to all three policies. However, fundamental values and general political views, indicated by four attitudinal factors, are even more important in forming opinions towards the three transport policies. Of all attitudinal factors, the one indicating environmental concern most influences the support for all policies. Equity concerns, however, increase the support for free public transport and opposition to taxation increases the support for building more roads. Our results further suggest that the opinions towards free public transport and building more roads can be mapped along the leftÐright political axis, where Environment and Equity are to the left and Pricing and Taxation are to the right. However, the opinion towards congestion charging cuts right through the political spectrum. The impact of the fundamental values and self-interest variables are similar for Stockholm and Helsinki, indicating that even if experience increases the overall support for charging, it does not change the relative strength of different political arguments to any major extent.

This thesis focuses on the reconciliation between the global challenge of climate change and the local and sectoral solutions that need to be well articulated in order to contribute, efficiently, equitably and in the most acceptable way, to the reduction of CO2 emissions. More specifically, we investigate the conditions for successful implementation of climate policy at the scale of urban human mobility.

This paper proposes different policy scenarios to cut CO2 emissions caused by the urban mobility of passengers. More precisely, we compare the effects of the ‘direct tool’ of carbon tax, to a combination of ‘indirect tools’ – not originally aimed at reducing CO2 (i.e. congestion charging, parking charges and a reduction in public transport travel time) in terms of CO2 impacts through a change in the modal split. In our model, modal choices depend on individual characteristics, trip features (including the effects of policy tools), and land use at origin and destination zones. Personal “CO2 emissions budgets” resulting from the trips observed in the metropolitan area of Lille (France) in 2006 are calculated and compared to the situation related to the different policy scenarios. We find that an increase of 50% in parking charges combined with a cordon toll of €1.20 and a 10% travel time decrease in public transport services (made after recycling toll-revenues) is the winning scenario. The combined effects of all the policy scenarios are superior to their separate effects.

Most of the challenges associated to the transition towards low carbon mobility being concentrated in cities, this chapter focuses on the implementation of policy tools at the urban scale. After a conceptual overview of the economics of low carbon mobility in Sect. 2.1, we present the toolbox of the policymaker for reducing CO2 from urban mobility in Sect. 2.2, by subsequently appraising the efficiency, equity and acceptability of a sample of policy tools.