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Al-Kaisy, A and Nassar, K (2005) Nighttime construction issues revisited. Journal of Construction Research, 6(01), 139–56.

  • Type: Journal Article
  • Keywords: Nighttime operations; highway maintenance; highway construction
  • ISBN/ISSN: 1609 9451
  • URL: http://www.worldscinet.com/jcr/06/0601/S1609945105000304.html
  • Abstract:
    An investigation into nighttime construction operations at highway maintenance and reconstruction sites is presented in this paper. This investigation, which is part of a research project sponsored by the Illinois Department of Transportation (IDOT), involved two questionnaire surveys. The first survey is concerned with state Departments of Transportation (DOT's), while the other is concerned with IDOT districts. The surveys addressed issues pertaining to the different aspects of nighttime construction work such as the current practice in nighttime operations, construction-related factors, traffic-related factors, and social, economic, and environmental factors. Research results suggest that there is agreement between the two groups on many aspects of nighttime operations, however some other aspects received conflicting opinions. Many important findings were drawn from these surveys and are summarized in this paper. The study recommends the use of a more quantitative approach in dealing with some aspects of nighttime operations. This can easily be achieved on projects with dual shifts so as to exclude the effect of other affecting factors. The study also recommends the use of a separate bidding of nighttime pay items. This may not only prevent contractors from complaining about prices, but also result in more accurate and possibly lower bids. Also, any incentives provided in nighttime contracts should more reflect the expected benefits of nighttime work, particularly the savings in road user costs.