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Detecting and resolving work-space conges-tions and time-space conflicts through 4D - Modeling in the Micro level
KTH, School of Architecture and the Built Environment (ABE), Real Estate and Construction Management.
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This degree project aims to find solutions to prevent construction process from delay by detecting and resolving work-space congestions and time-space conflicts based on 4D-modeling.

The purpose is to improve the work efficiency on the construction site of a hospital project. Through a software experiment, the proposed solutions will be tested to see if the conflicts on the construction site can be resolved or minimized. This is achieved by following the construction phase of the NKS project from Skanska AB. The largest hospital project in Sweden.

The theoretical framework focuses on the concepts of 4D, work-space congestions, time-space conflicts, lean construction, last planner system, project organization as well as reviewing a variety of literature regarding how to resolve the conflicts during the construction process. The useful data and information have been gathered through semi-structured interviews with project managers and workforce. The obser-vations have been done on-site. Followed by 4D software experiment, by associating the tasks to the different areas through LBS with the time constraint data, the effi-ciency of work based on the quantity takeoff can be evaluated and thus it allows pro-ject managers to foresee the potential conflicts easily. Eventually, applying 4D - modeling helps the planners visualize the inefficiencies in the schedule and thus re-schedule the tasks before they lead to delays.

Abstract [sv]

Syftet med detta examensarbete är att finna lösningar för att förhindra konstruktions-processen från förseningar genom att upptäcka och lösa arbetsplatsstörningar samt tids- och utrymmeskonflikter baserat på 4D-modelering.

Målet är att effektivisera arbetet på byggarbetsplatsen för ett sjukhusprojekt. Genom simuleringar kommer föreslagna lösningar, för att undvika konflikter på arbetsplatsen, att prövas för att få bukt med eller minimera dessa konflikter. Detta uppnås genom att följa byggnadsfasen av NKS-projektet från Skanska AB. Sveriges största sjukhuspro-jekt.

Den teoretiska referensramen fokuserar på begreppen: 4D, arbetsutrymmesbelast-ning, tids- och platskonflikt, lean construction, last planner-systemet, projektorgani-sation samt granskning av litteratur som handlar om konfliktlösning under byggpro-cessen. Användbara data och information har samlats in via semistrukturerade inter-vjuer med projektledare och byggnadsarbetare. Observationer har gjorts på plats. Följt av 4D-simulering, genom att sammankoppla uppgifter till de olika områdena ge-nom LBS med tidsrestriktionsdata, kan effektiviteten av arbete som bygger på mängdavtagning utvärderas. Det tillåter projektledare att utan svårighet förutse po-tentiella konflikter. Så småningom kan tillämpningen av 4D-modellering hjälpa plane-rare att visualisera ineffektiviteter i tidsplanen och därmed planera om arbetsuppgif-terna innan de leder till förseningar.

Place, publisher, year, edition, pages
2016.
Series
TRITA-FOB, PrK-MASTER-2016:1
Keyword [en]
BIM, 4D, Construction, Work-space conges-tion, Time space conflict, Location lag, Flowline scheduling
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-183101Archive number: 407OAI: oai:DiVA.org:kth-183101DiVA: diva2:907589
Supervisors
Examiners
Available from: 2016-02-29 Created: 2016-02-29 Last updated: 2016-02-29Bibliographically approved

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