Final Report for NCHRP Report 581: Design of Construction Work Zones on High-Speed Highways (2007) / Chapter Skim
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1 SUMMARY Driving through construction work zones is an increasingly common part of the transportation experience. The combination of two long-term trends has increased the expanse and importance of work zones: (1)
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2 speed deviation above and below the mean speed. Crash rates are lowest for vehicles traveling near the mean speed.
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3 The development of design aids for the placement of temporary concrete barriers in construction work zones was a research emphasis area. Better guidance in this area was the top priority of state DOT survey respondents.
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4 The research report consists of five chapters. The Introduction (Chapter 1)
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