AN EVALUATION OF CONSTRUCTION SPEED PERFORMANCE FOR BUILDING CONSTRUCTION PROJECTS IN UK AND GERMANY

misbe2011 Tracking Number 165

It is aimed to design a study that facilitates a fair comparison of construction speed performance for residential and office developments in UK and Germany. The definitions of the populations are restricted hence there is a necessity to construct a common basis for two different data sets. Subsequent to data base filtering, random sampling was performed via computer algorithm and 200 observations from each location were retained in the samples. Available quantitative variables were utilized to create factors and the response variable. 2 sample t-test was designed to test the group differences between two samples resulted in no substantial variation exists between population means. Limitations applied to 2 sample t-test forms a motivation for further investigation and in this context a factorial study is designed. This enables to observe the effect of not only the location factor but also the hypothesized factors that may influence the mean response. The analysis yielded that project location causes a significant variation in the mean response when factors regarding facility, standard and height are taken into account. Consistent with the complexities involve in construction projects, it is concluded that neglecting the effect of construction speed related factors and only taking project location into account would not be an appropriate approach for a post ex facto research where observations can not be controlled.