4D- and 5D BIM are used in the design phase of construction projects and mean that a 3D-model of a project is provided with two additional dimensions. 4D is a 3D-model that has a time aspect, while 5D is a 3D-model with both a time aspect and a cost estimate. The 3D-model contains numerous different objects which are given specific device times and material- and work costs. Then a video simulation can be made where the project is constructed as the time ticks on and depending on the software, it can also display the cost of different objects and activities as the simulation is played. The purpose of the study is to find out if the use of 4D- and 5D-BIM before the contracting phase of contractors could be beneficial to the client and the consultant. In which kinds of projects is it useful? Does the usefulness differ from a building project to a facility project? Does the size and complexity of a project affect the usefulness of the technology? Which softwares are currently used and are they sufficiently developed for the projects today? These are the questions that are going to be answered. In order to answer the questions, a survey is sent to employees at Sweco and interviews are made with people both from Sweco and Trafikverket (Swedish Transport Administration) who have good knowledge and experience in the field. This is done to gain a perspective from both the consultant and the client side. A case study is done in the 4D software “Vico Office” in order to compare its usefulness in a building project versus a facility project and at the same time assess the user friendliness of the software. The result of the studies showed that 4D- and 5D BIM can improve visualization and create good communication between all parties, which can lead to possible profitability for both the clients, the contractors and even the consultants. Important factors that have been taken from the studies in order to make the use of 4D and 5D profitable are education and knowledge about the technology. The project should also be reasonably complex. This makes 4D and 5D BIM more useful in facility projects as they are generally more complex. At present, however, the technology is not so common in projects, as only 17% of the 229 respondents in the survey have been included in projects where the technology has been used. Even though there a flaws in the softwares and that they need more features, the knowledge that the users possess in 4D and 5D BIM needs to be better.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:kth-287200 |
| Date | January 2020 |
| Creators | Skocic, Marko, Erman, Pontus |
| Publisher | KTH, Byggteknik och design |
| Source Sets | DiVA Archive at Upsalla University |
| Language | Swedish |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | TRITA-ABE-MBT ; 20141 |
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