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What is iRAP Curvature Crash Risk Factors about?

This document describes risk factors related to road curvature used in the iRAP methodology. It defines risk factors as multiplicative factors that estimate the expected number of crashes based on road attributes. Research has found higher crash rates on curved roads compared to straight roads, with rates increasing significantly on more sharply curved roads. The iRAP methodology uses risk factors ranging from 1.0 for straight or gently curving roads to 6.0 for very sharp curves to account for this increase

Author

mroys mroys

Language

EN