Vehicle accidents represent an important source of externalities from driving, and their frequency and severity is strongly affected by vehicle speed. We explore the role of 30 km/h speed limits in mitigating vehicle accident severity in built-up areas. Using a detailed dataset on accident location and characteristics in Switzerland, we exploit the variation in accident severity and speed limit to estimate the effect of switching from a 50 km/h limit to 30 km/h on the probability of accident injuries. We complement our analysis with a difference in difference strategy focused on the municipality of Basel. We find a significant effect of lower speed limits on accident severity, and substantial heterogeneities based on the circumstances of the accident.
No prior registration necessary. If you have any questions, please contact Amanda Slater at slater[at]hertie-school[dot]org.
This event is part of the Political Economy Lunch Seminar series.