FHWA Roadway Departure Crash Emphasis Area – Long Description

Diagram showing strategies to mitigate the three main risk factors for roadway departure crashes:

Overturn Crash Strategies:

1. Curve Delineation
2. Friction treatments in curves
3. Edge line and shoulder rumble strips
4. Safety Edge_SM
5. Clear zones
6. Traversable roadside slopes
7. Barrierss to shield fiexed objects and slopes

Opposite Direction Crashes:

1. Center line rumble stripes
2. Friction treatments in curves
3. Increased separation betweeen opposing lanes, particularly in curves.
4. Median barriers

Roadside Trees and Shrub Crash Strategies:

1. Edge line and shoulder rumble strips
2. Curve delineation
3. Friction treatments in curves
4. Clearzone improvements, particularly on the outside of curves
5. Barriers to shield trees and shrubs