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Abstract
The article presents the results of the analysis focused on the effectiveness of 4D CAD the phenomenon of which has been analysed by foreign scientists considering a number of different aspects. The conducted research differs from prior literature as the objective, in our case, was to evaluate effectiveness and justify results using multi-criteria analysis. Effectiveness has been investigated through the construction experiment observing group performances applying two different types of information – 2D CAD and 4D CAD drawings. Research findings have proved that the efficiency of using the 4D model has been doubled given the same time constraints when the evaluating the completeness of the construction object. Research results have also showed that the use of the 4D model helped with completing the construction of the object much faster. A comparison of the results of the participants of two groups has revealed that the use of the 4D CAD model has twice reduced the occurrence of mistakes in the construction process and helped the participants with faster detecting and fixing the errors they made. TOPSIS, SAW and CORPAS multifunctional solution making methods were employed for 2D and 4D ranking during the experiment on 4D efficiency. The findings confirm that the 4D model is more rational, more convenient and efficient than the 2D model regarding all results of statistical and multi criteria analysis.
Additional information
Notes on contributors
Marius Reizgevicius
Marius REIZGEVICIUS. PhD student at Vilnius Gediminas Technical University, Lecturer at Siauliai University. Education: Siauliai University bachelor of Construction Engineering 2001–2005; Vitus Bering / VIA University college, Denmark, Bachelor of Constructing Architect 2005–2007; Siauliai University master of Construction management 2001– 2005. PhD studies of Civil Engineering at Vilnius Gediminas Technical University since 2011. Research interests: Automated design in construction, inovation technologies.
Leonas Ustinovichius
Leonas USTINOVICHIUS. Professor Dr Habil at Vilnius Gediminas Technical University. Education: Industrial and civil engineering, construction engineer, VISI (VGTU), 1982; Candidate of technical sciences Dnepropetrovsk ISI, 1989; Associate professor, VGTU, 1993; Doctor of technical sciences, VGTU, 1994; Doctor habilitatus, VGTU, 2003; Professor, VGTU, 2007. Research interests: Multicriteria evaluation and automated programming of technological decision in construction, Operational research methods, Technology of construction process, Quantitative and qualitative decision making methods, Organization and performance of constrution firm.
Ruta Simanaviciene
Ruta SIMANAVICIENE. Associate professor Dr at Vilnius Gediminas Technical University. Education: Mathematics and Informatics (Bachelor of Mathematics, School Teacher); Vilnius Pedagogical University, 2000; Master of Mathematics, School Teacher, Vilnius Pedagogical University, 2002; PhD studies, Vilnius Gediminas technical university, 2007– 2011. Research interests: Applied mathematics.
Romas Rasiulis
Romas RASIULIS. PhD student at Vilnius Gediminas Technical University. Education: Graduate of Vilnius Gediminas Technical University, Civil Engineering Bachelor's qualifying degree, 2001; Engineering Master's qualifying degree and an Engineer's professional qualification, 2010; PhD studies of Civil Engineering at Vilnius Gediminas Technical University since 2011. Research interests: Technology of construction process.
Mykolas Peliksa
Mykolas PELIKSA. Associate professor Dr at Siauliai University. Education: Kaunas Polytechnical institute, Vilnius department civil engineer, 1969; Supreme Certification Commission of the USSR doctor of sciences 1977. Research interests: Construction technology and management.