Final Report for NCHRP Report 581: Design of Construction Work Zones on High-Speed Highways (2007) / Chapter Skim
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5 CHAPTER 1 INTRODUCTION 1.1 BACKGROUND Each year, state transportation departments reconstruct and rehabilitate thousands of miles of high-speed highways. To varying degrees, the associated construction activities require alteration of traffic patterns and the introduction of new features to the driving environment.
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6 1.2 RESEARCH SCOPE AND PRIORITIES The overall objective of the research was to develop a design decision methodology for construction work zones on high-speed highways. In delineating the project scope, a distinction was made between temporary traffic control and work zone design features.
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7 on development of a speed prediction model for common freeway construction work zone types and design guidance for barrier placement. 1.3 ORGANIZATION OF THIS REPORT This report provides an overview of work zone issues for high-speed highways and in-depth review of subjects related to work zone design and safety.
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