The long term social benefits of transit

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Daniel Jonsson
Mattias Lundberg

Standard CBA is often criticised for not taking land use effects induced by transport investments and wider economic benefits into account. The purpose of this paper is to estimate the size of these effects using the Stockholm Metro built in the 1950’s, the largest urban rail investment in Sweden, as a case study. We find that benefits of the Metro increase 60 percent due to long term land use adjustments. Wider economic benefits increase the benefit by 17 percent.We show that the Stockholm Metro was socially beneficial to build according to present standard methods, even without taking land use effects and wider economic benefits into account. Hence, the anecdote that the Metro of Stockholm had not been built if CBA had been a part of the appraisal seems to be false.

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