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Article

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Accepted version

Publication date

2021-05-01

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cc-by-nc-nd (c) Elsevier Ltd, 2021
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/183916

On the relationship between congestion and road safety in cities

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https://doi.org/10.1016/j.tranpol.2021.03.011

Abstract

We empirically examine the relationship between traffic congestion and deaths in road accidents at the city level. We use panel data from 130 large cities in Europe for the period 2008-2017. We find strong evidence of a quadratic relationship between congestion and deaths in accidents, using both parametric and non-parametric econometric techniques. The threshold point at which the relationship between congestion and deaths in accidents is reversed and becomes positive occurs when congestion results in about a 30 per cent increase in travel time compared to a free flow situation. For most congested cities, any effective measure to contain congestion may also lead to better safety outcomes.

Subject

Congestió del trànsit, Seguretat viària, Accidents de trànsit, Ciutats

Subject (English)

Traffic congestion, Traffic safety, Traffic accidents, Cities and towns

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Articles publicats en revistes (Econometria, Estadística i Economia Aplicada)
Articles publicats en revistes (Institut de Recerca en Economia Aplicada Regional i Pública (IREA))

Citation

ALBALATE, Daniel and FAGEDA, Xavier. On the relationship between congestion and road safety in cities. Transport Policy. 2021. Vol. 105, num. 145-152. ISSN 0967-070X. [consulted: 11 of August of 2026]. Available at: https://hdl.handle.net/2445/183916

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