A Method for Highway Agency to Estimate Highway Construction Durations and Set Contract Times
Titel:
A Method for Highway Agency to Estimate Highway Construction Durations and Set Contract Times
Auteur:
Jiang, Yi Wu, Hongbo
Verschenen in:
International journal of construction education and research
Paginering:
Jaargang 3 (2007) nr. 3 pagina's 199-216
Jaar:
2007-09
Inhoud:
Construction duration of a highway project depends on many factors, such as type of project, project size, weather conditions, project location, manpower, equipment, and construction management. It is important for a highway agency to be able to estimate reasonably the construction durations of highway projects. The highway agencies need to determine factors for construction durations so that they can be used to provide a contract estimation model that would be both accurate and usable. This article presents the research results on construction durations of highway construction projects. Through statistical analysis, we identified the effects of major factors on construction durations. Regression techniques were utilized to develop a contract time estimation model. The model contains regression equations, prediction intervals of construction durations with 95% confidence intervals, and adjustment coefficients of the major affecting factors.
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