Countermeasures That Work: A Highway Safety Countermeasure Guide for State Highway Safety Offices, 11th Edition, is a basic reference to assist State Highway Safety Offices (SHSOs) in selecting effective, evidence-based countermeasures for 11 traffic safety problem areas:
- Alcohol-Impaired Driving
- Drug-Impaired Driving
- Seat Belts and Child Restraints
- Speeding and Speed Management
- Distracted Driving
- Motorcycle Safety
- Young Drivers
- Older Drivers
- Pedestrians
- Bicyclists
- Drowsy Driving.
A significant change in the 11th edition is the separation of the Alcohol- and Drug-Impaired Driving topic area of the previous editions into two distinct topic areas: one focusing solely on alcohol-impaired driving and another on drug-impaired driving. As research into these topics has continued to evolve, it has become increasingly clear that, although intertwined, these two topic areas present unique challenges and varied countermeasures that warrant individual and nuanced discussion.