Survey on Positive Barrier Usage Posted on August 8, 2018 by Karla Holland Positive Barrier Use Survey Contractors involved in highway and bridge improvement projects around the country are concerned about the safety of their employees when working next to moving traffic. Over the past five years, an estimated 650 workers have been killed nationally in work zone crashes. Speeding, distracted and impaired driving are blamed directly for many of the crashes and resulting fatalities. Contractors, however, are not able to control motorist behavior. An important method for protecting workers from motor vehicle intrusions is the use of positive (concrete) barriers between vehicle traffic and construction activities. AGC of America is attempting to determine if state DOTs are allowing the regular use of positive barrier on federally funded projects in circumstances where their use would seem appropriate. Please take ten minutes to help us determine if this remains a problem in your state on federally funded projects by answering the survey questions.