International Choice Modelling Conference, International Choice Modelling Conference 2017

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How to influence the public acceptance of road pricing? The Trondheim experiment
Farideh Ramjerdi, Jasper Knockaert

Last modified: 28 March 2017


Political and public acceptance and institutional setup are among important barriers to the adoption of congestion pricing. While urban toll schemes have never gained public acceptance in Norway, political acceptance and institutional setup have been crutial in their widespread adaption in Norway.

By relying on international evidence from Edinburgh, Manchester, New York City and Copenhagen, Russo (2013) suggests that political acceptability and institutional setup are perhaps the greatest barriers to the implementation of a toll scheme . London, Stockholm and Millan demonstrate the importnace of political acceptability and institutional setups as well as the effectiveness of the policy. Russo correctly suggests that the ease of the implementation of parking regulations and pricings relates to the institutional setup.

In a paper presented at hEART 2015 (Ramjerdi, Knockaert and Johansen), we analysed the public opinion surveys conducted annualy by the Public Roads Admistration since 1989 in Oslo and a public opinion survey coducted in 2014 in Trondheim. We applied latent class models to these data to identify classes that were for, against or neutral to the schemes. In this paper we suggested that those who have formed an opinion towards the scheme (for or against) are less likely to change their views, while those who are indifferent to the scheme are more likely to change their opinions.

This paper focuses on the 2014 survey in Trondheim. The data collected in this survey will be used to respond to the following questions:

1. What are the factors (e.g., preceived impacts of a policy) that  could lead to an increase in a policy acceptance such as congestion pricing?

2. How different segments of a population (not only based on the observed socioeconomic variable, but also based on attitudinal variables) change their acceptance of a congestion pricing scheme?

An understanding of these points could help policy makers to persuade individuals to alsign their behaviours with that of the public.

Among the data collected in the 2014 survey, were data on respondents travel behaviour, their perception of traffic and environment, attitudes, travel habits, perceptions of taxes, equity, social policies, etc. Before attitudinal questions, the respondents state their stands (for, against or neurtal) on the scheme. The respondents are again asked on how they would vote for the scheme (if they could vote today), after the attitudinal questions. We have applied an ordered logit model with latent variables to evaluate how likely is a respondent to change stand and the type of variables that turn significant for changing stands.

Ramjerdi, F. Knochaert, J. and Johansen, B. 2015 Public acceptance of road pricing; Does it matter? Paper presented at the hEART Conference, 9-11 september 2015, Copenghagen

Russo, A. 2013. Voting on road Congestion Policy, Regional Science and Urban Economic



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