A Study of Estimating Project Design Manhours.

TL;DRAbstract

The purpose of this thesis was to analyze design variables which affect the time required to design a project and to develop a model for estimating required design time based on these variables. A survey was distributed to all Civil Engineering design sections located in the CONUS. Specific data were requested on previously designed projects and on pertinent factors considered when estimating project design manhours. The results of the survey indicated that the three most important factors were: complexity of the project, estimated cost of the project, and experience of the engineer. Multiple linear regression analysis was used to statistically analyze what effect the independent design variables (cost of project, complexity, number of disciplines, experience of the engineer, type of work, type of funds, modularity, previous similar projects, and drafting work by the engineer) would have on the dependent variable (design manhours). A relationship was found to exist between project desi

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