Effective Countermeasures to Reduce Accidents in Work Zones

The objectives of this project included: characterizing the nature of work zone accidents in Arizona; reviewing countermeasures used throughout the country, and the effectiveness of those countermeasures; and recommending countermeasures for use in Arizona to improve work zone safety and reduce accidents. Six selected principal countermeasures for implementation in Arizona: 1) work zone speed limits; 2) police presence; 3) speed limit enforcement; 4) public education; 5) sign credibility; and 6) temporary pavement markings in work zones.