In-Service Performance of Traffic Barriers (2003) / Chapter Skim
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1CHAPTER 1 INTRODUCTION ROADSIDE FEATURE DESIGN PROCESS The process used to design roadside safety hardware has evolved over the past half century. Full-scale crash testing dominated the roadside hardware development process in the past because until recently there were no sophisticated analysis tools, little experience with collecting and analyzing real-world crash data, and no standard procedures for field monitoring of roadside features.
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subjects for a period of time and comparing the health of the group using the new drug to a similar group that is not being treated. Even after the drug is released to the general population, governmental agencies continue to track patient experience with the drug to determine if it is effective and to ensure there are no unanticipated side affects in the general population.
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5. A method for observing unreported accidents, 6.
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assume one guardrail crash test results in a lateral occupant risk value that is barely acceptable and a test of another system results in an occupant impact velocity half of the first. How much better is the former than the latter?
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This type of process could become a part of a state's Safety Management System since it is focused on quantifiable results that can be optimized. Safety management stresses the need for defining observable quantifiable performance measures.
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from the resources available. In-service evaluation has the potential to become a vitally important means of increasing the driving public's safety while at the same time effectively stewarding the public's resources.
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