Welfare losses of road congestion: evidence from Rome

Antonio Russo, Martin Adler, Federica Liberini, Jos van Ommeren

Research output: Contribution to journalArticlepeer-review

8 Citations (SciVal)


We estimate the marginal external cost and welfare losses due to congestion for a large number of roads in Rome, Italy. We show that the marginal external cost is substantial, equaling about two thirds of the private time cost of travel. About one third of this cost is borne by public transport users. Our results imply that policies designed to reduce congestion can result in important welfare gains.

Original languageEnglish
Article number103692
Number of pages18
JournalRegional Science and Urban Economics
Early online date27 May 2021
Publication statusPublished - 31 Jul 2021
Externally publishedYes


  • Deadweight loss
  • Marginal external congestion costs
  • Public transport

ASJC Scopus subject areas

  • Economics and Econometrics
  • Urban Studies


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