A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity (2012) / Chapter Skim
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2Traffic congestion, especially in metropolitan areas, places a significant and serious burden on the public and threatens the economic vitality of the nation. A significant portion of traffic congestion is attributable to roadway construction and maintenance activities (10 to 24 percent as reported in various studies)
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Introduction and Framework 3 • Decreased driver expectancy for encountering road work activities at night. • Higher percentage of impaired and/or drowsy drivers on the road at night.
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4 A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity The Decision The decision to conduct construction activities at night can be made at various levels of the STA and at various points in the project development process or even by a construction company, depending on the individual project. However, this decision needs to be made as early in the project development process as possible and communicated to all project participants throughout the remainder of project development and construction.
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Introduction and Framework 5 The material presented in this guide was assembled through a review of literature, surveys, interviews with agencies and contractors, and limited field measurements. Additional information on the project can be found in the contractor's final report.
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6 A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity Chapter 5: Productivity The productivity levels of nighttime construction have not been researched in depth. This chapter presents ways to improve productivity, as well as potential pitfalls that may be encountered.
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Introduction and Framework 7 Appendix: Sample Safety Quiz This appendix contains a sample toolbox talk, written quiz, and answer sheet on safety activity responsibilities. Guidebook Content Each chapter of the Guidebook generally has three sections: an introduction, body, and conclusion.
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8 A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity Several of the topics covered in this Guidebook are specific to nighttime construction, such as illumination,whereas others include a discussion that is not all that different from the efforts needed on all projects regardless of the time of day, such as communications. While these discussions are more generic, project personnel are reminded that these roadway construction challenges are no less important and may have a greater impact during nighttime construction.
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