USING BUILDING INFORMATION MODELING (BIM) TO SHOW HOW SCHEDULE DELAYS CAN

BE MINIMISEED IN THE ZAMBIAN ROAD SECTOR

PREPARED AND PRESENTED BYCHIKWA MWANZA

11402286Bsc QUANTITY SURVEYING

INTRODUCTIONAlthough the Zambian Construction Industry has in the recent years recorded a steady growth characterized by vast number of construction project which are dominated by road construction, challenges of schedule delays still pose a threat to development.Labor saving tool have since being implemented including computer aided designs all in attempts to reduce schedule delays.The ever increasing pressure on project teams to deliver projects as quickly as possible within time and cost limit of clients has forced them to focus on methodologies that would assure them achievability and constructability (Lennert, 2012).Building Information Model is one of the most promising concepts developed in the construction sector as it enhances level of coordination allowing contractors to perform with less on site adjustments, nonetheless it seen an the best way to reduce both cost and time by simply applying constructability practice (Lennert, 2012).

Definition if BIM

It is a value creating collaboration of the entire project life cycle of an asset that is underpinned by creation, collation and exchange of shared 3D models with structured data attached to them. Therefore, it is method of collecting, arranging, distributing and displaying project data (Debevoice & Plimpton, 2015).

PROBLEM FORMULATION AND JUSTIFICATIONZambia has reported to having an increased number of scheule delays. According to Kaliba (2009), there has been little that has been undertaken in Zambia to address thee issue of delays. Project status updated by the RDA dated February, 6, 2015 shows some serious problems of delays in most road projects

RDA Status Update no. 22 on link Zambia 8000 projects

project Start finish status

113km Samfya-kasaba road March 2014 Aug 2016 Site not yet mobilized

Upgrading the 70km Pedicle Road Nov 2012 Nov 2014 On-going

158km Kawambwa-Mushota road March 2013 March 2015 On-going

Upgrading the 45.5km Kitwe-Chingola road March 2013 March 2015 On-going

Rehabilitation of the 114.7KM Great East Road from Nyimba-Sinda

June 2013 March 2015 On-going

Problem StatementContractor in Zambia are struggling to deliver projects as per proposed schedule. Some challenges leading to these schedule delays have been identified to include; delayed payments, inclement weather, contract modifications, economic hardships, material procurement, changes in design drawings, staffing problems, equipment unavailability, poor supervision, construction mistakes, poor coordination on site and changes in specification.

for the purpose of this research, variables such as delayed payments and inclement weather will be assumed constant as they cannot be controlled by the contractor. The research will therefore focus on constructability issues which are within the obligation of the contractors and will show how when principles of BIM are subjected to those challenging factors, project delays will be minimized.

Factors under consideration

• Constructability issues• Communication barriers• Material accountability• Insufficient collaborations• Unrealistic out of date programs• inadequate record keeping

How BIM Analyses Delaying Factors• Change orders are issued• Change is assessed• Program is updated with or without changes• Data is availed to more people and impacts of change is clearer• Mitigation can be proposed and tested on the model with

unforeseen consequences identified• Links to the program can be established• Workforce is monitored• Lead time for material is accounted for• More accurate estimates are created through 3Dvisualization• Information is shared with the entire workforce making

participants identify and solve problems during design phase

Aim

The aim of this research is to optimize schedule management within various phases of construction process by applying tools and principles outlined in BIM

Objectives• To discuss the literature of BIM• To show how constraints of constructability can be overcome by using BIM on different

projects• To compare results of projects subjected to BIM principles and those without and show

by how much margin the project duration could be improved • To show how BIM can reduce the problem of schedule delays by applying BIM tools

such as Tekla BimSight • To recommend BIM as an innovative approach to reduce schedule delays

HypothesisApplying principles of BIM of construction projects might be a strategy to reduce schedule delays in the Zambian Road Sector

Methodology

• The goal of this research is to examine the use and benefits of BIM based scheduling. Therefore, both quantitative and quantitative data will be used to produce descriptive information and to investigate & analyze the results.

• Data collection Methods• Secondary and primary data collection

methods will be used

The End

• Thank you!!!