Hard-braking events as indicators of road segment crash risk
6 hours ago
- #hard-braking events
- #crash risk prediction
- #road safety
- Hard-braking events (HBEs) are positively associated with road segment crash rates.
- HBEs can serve as leading measures for road safety assessment, unlike traditional lagging crash data.
- Analysis shows roads with higher HBE rates have significantly higher crash risks.
- HBEs provide a denser data signal compared to sparse crash reports, enabling network-wide analysis.
- Statistical validation using negative binomial regression confirms the correlation between HBEs and crash rates.
- Infrastructure elements like ramps increase crash risk, as indicated by HBE data.
- A case study on a California freeway merge segment demonstrated HBEs' effectiveness in identifying high-risk areas.
- Google is integrating HBE data into its Roads Management Insights for real-world safety applications.
- Future work includes refining HBE signals and using them for targeted infrastructure interventions.