This paper investigates the road safety impact of a power restriction on novice drivers. The restriction, introduced in Italy in 2011, prevents drivers from using high-performance vehicles during the first license year. To estimate the effect on teen traffic accidents we leverage the between-cohorts difference in the exposure to the reform. We find that, when prevented from using high-powered cars, teens are 13% less likely to cause an accident and 28% less likely to cause a fatal accident, mainly because of fewer speed violations. This effect persists even after the one-year restriction expires. Our findings highlight the importance of targeted policies – directed at those generating the largest harm – limiting exposure to specific high-risk settings. These policies stand out as an effective, yet feasible alternative to deterrence-based strategies and screening mechanisms, which are often difficult to enforce and sustain.

Depowering risk: vehicle power restriction and teen driver accidents in Italy

Balia, Silvia;Brau, Rinaldo;Nieddu, Marco
2023-01-01

Abstract

This paper investigates the road safety impact of a power restriction on novice drivers. The restriction, introduced in Italy in 2011, prevents drivers from using high-performance vehicles during the first license year. To estimate the effect on teen traffic accidents we leverage the between-cohorts difference in the exposure to the reform. We find that, when prevented from using high-powered cars, teens are 13% less likely to cause an accident and 28% less likely to cause a fatal accident, mainly because of fewer speed violations. This effect persists even after the one-year restriction expires. Our findings highlight the importance of targeted policies – directed at those generating the largest harm – limiting exposure to specific high-risk settings. These policies stand out as an effective, yet feasible alternative to deterrence-based strategies and screening mechanisms, which are often difficult to enforce and sustain.
2023
Youth road accidents; Driving restriction; Graduated licensing; Risky behaviors; Risk exposure
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/357958
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