A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity (2012) / Chapter Skim
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Pages 57-62
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57 The most important advantage of nighttime construction and why it is used in most cases is to reduce congestion and delay for the traveling public during project construction. At the same time, it is essential for STAs to maintain the quality of nighttime construction operations parallel with the FHWA national objectives on quality construction, which are to improve system performance; decrease congestion and impacts on the environment; improve safety by minimizing work-zone frequency, duration, and disruption of traffic flow; and improve the economic efficiency of highway investments.
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From page 58... ...
58 A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity As more construction work is completed at night, it is important for transportation officials to understand and implement quality measures in nighttime construction. The following sections describe factors affecting nighttime construction quality inspections, quality of construction work at night, nighttime paving quality, and quality management programs adopted by agencies to maintain the quality aspect in nighttime work.
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From page 59... ...
Quality 59 Human Factors Nighttime workers often experience fatigue due to lack of sleep/rest, as well as issues adjusting to the idea of working at night. Fatigued workers may be unable to stay mentally alert and focus on their jobs.
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60 A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity Nighttime Paving Quality Studies by Hinze and Carlisle (1990a and 1990b) and Ellis and Kumar (1993)
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Quality 61 Quality Management Programs Most studies conducted indicate the quality of the finished product done under nighttime operations has not been significantly different from work performed during the daytime (Elrahman 2008)
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62 A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity daytime and nighttime projects have the same quality specifications, regardless of when the work is performed. However, lack of good lighting when conducting nighttime work may result in poorer work quality because work quality is highly dependent on the ability to see the work.
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