how to quantify the economic benefit of using bim to...
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2013/SOM3/SCSC/WKSP2/014 Session 6
How to Quantify the Economic Benefit of Using BIM to Detect Design Errors: Case Study – D3 City
Project in Seoul, Korea
Submitted by: Yonsei University
Joint APEC-ASEAN Workshop - How Building Information Modeling Standards
Can Improve Building Performance Medan, Indonesia
24-25 June 2013
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Designed by Ohyoon Kwon
APEC BIM Workshop
2013. 6. 25.
Ghang Lee, Ph.D., Associate Professor
Director, Building Informatics GroupArchitectural Engineering, Yonsei University
How to Quantify the Economic Benefit of Using BIM to Detect Design Errors Case Study – D3 City Project in Seoul, Korea
Main Research/Teaching Interests
Software
Hardware
Social-cultural Technical
• Information Technology (IT) in Construction• Building Information Modeling (BIM)
Interoperability/Data exchangeSoftware engineering
Knowledge and data elicitation and management / Ontology
Parametric and constraint-based modelingRule-based design/constructability analysis
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Main Research/Teaching Interests
Software
Hardware
Social-cultural Technical
Automation in construction
Interoperability/Data exchange
Construction devices and methods
Software engineering
Knowledge and data elicitation and management / Ontology
Parametric and constraint-based modelingRule-based design/constructability analysis
• Information Technology (IT) in Construction• Building Information Modeling (BIM)
Main Research/Teaching Interests
Software
Hardware
Social-cultural Technical
Indicators for evaluating technology adoption in construction
Automation in construction
Interoperability/Data exchange
Usability/User experience
BIM-based collaboration and coordination
Construction devices and methods
Productivity analysis
BIM collaboration network
Software engineering
Knowledge and data elicitation and management / Ontology
Parametric and constraint-based modelingRule-based design/constructability analysis
• Information Technology (IT) in Construction• Building Information Modeling (BIM)
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BIM Uses
R. Kreider, J. Messner, and C. Dubler, "Determining the frequency and impact of applying BIM for different purposes on building projects," in 6th International Conference on Innovation in Architecture, Engineering and Construction (AEC), Penn State University, University Park, PA, USA, 2010.
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Most Beneficial Ways of Using BIM
Source: McGraw-Hill Construction, 2012. p. 32
Outline
• Current practice – BIM-assisted Error Detection and Coordination
• Case study –How to quantify the economic benefits of using BIM to detect design errors.
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Current Practice
How do we use BIM today?
(a)
Game #1
Plan
Front Right
Left Back
Based on: Kang, J.H., Anderson, S.D., and Clayton, M.J. 2007. Empirical Study on the Merit of Web-Based 4D Visualization in Collaborative Construction Planning and Scheduling. Journal of Construction Engineering & Management, 133(6): 447-461.
G. Lee, A Hitchhiker's Guide to BIM - Reading BIM through 43 Questions. Seoul: Pixelhouse, 2011.
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(b)
Game #2
G. Lee, A Hitchhiker's Guide to BIM - Reading BIM through 43 Questions. Seoul: Pixelhouse, 2011.
Based on: Kang, J.H., Anderson, S.D., and Clayton, M.J. 2007. Empirical Study on the Merit of Web-Based 4D Visualization in Collaborative Construction Planning and Scheduling. Journal of Construction Engineering & Management, 133(6): 447-461.
Source: James G. Davis Construction
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Source: James G. Davis Construction
BIM [bim] - abbr. 1 building information model2 building information modeling3 informal building information management4 informal building information modeling
software
About 44 BIM Guidelines• South Korea: 5• United States: 27• Europe: 7• Oceania: 3• South Asia: 2
“The development and use of a computer softwaremodel to simulate the construction and operation of a facility”
AGC, "The Contractors' Guide to BIM," The Associated General Contractors (AGC) of America, Arlington, VA, USA2006.
“A digital representation of (the) physical and functional characteristics of a facility”
US Army Corps of Engineers, "Building Information Modeling (BIM)," 2006.
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The Essence of BIM
“Rehearsal” "Visual Communication”
BIM-Assisted Automated Error (Clash) Detection - Example
Source: DPR Construction
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“OK. I’m convinced. But how much can I benefit from BIM?”
SmartMarket Report Series
1. Young, N. W., Jr., S. A. Jones, et al. (2007). Interoperability in the Construction Industry. SmartMarket Report. Bedford, MA, McGraw Hill Construction: 36.
2. Young, N. W., Jr., S. A. Jones, et al. (2008). Building Information Modeling (BIM) - Transforming Design and Construction to Achieve Greater Industry Productivity. SmartMarket Report. Bedford, MA, McGraw Hill Construction: 48.
3. Young, N. W., Jr., S. A. Jones, et al. (2009). 2009 Business Value of BIM. SmartMarket Report. Bedford, MA, McGraw Hill Construction: 52.
4. Bernstein, H. M., S. A. Jones, et al. (2010). 2010 Business Value of BIM in Europe. SmartMarket Report. Bedford, MA, McGraw Hill Construction: 52.
5. Bernstein, H. M., S. A. Jones, et al. (2010). Green BIM - How Building Information Modeling is Contributing to Green Design and Construction. SmartMarket Report. Bedford, MA, McGraw Hill Construction: 56.
6. Bernstein, H. M., S. A. Jones, et al. (2012). 2012 Business Value of BIM for Infrastructure. SmartMarket Report. Bedford, MA, McGraw Hill Construction: 64.
7. Bernstein, H. M., S. A. Jones, et al. (2012). 2012 Business Value of BIM in North America. SmartMarket Report. Bedford, MA, McGraw Hill Construction: 64.
8. Lee, G., J. Lee, et al. (2012). 2012 Business Value of BIM in South Korea. SmartMarket Report. Bedford, MA, McGraw Hill Construction.
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Perceived ROI (Return on Investment)
Source: McGraw-Hill Construction, 2012. p. 19
Perceived Benefits
vs.
Actual Benefits
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Technology Acceptance Model (TAM)
Two drivers for user acceptance of information
technology
“Perceived” usefulness“Perceived” ease of use
Ref: F. D. David, "Perceived Usefulness, Perceived Ease of Use, and User Acceptance of Information Technology," MIS Quarterly, vol. 13, pp. 318-340, 1989.
How can we quantify the economic value of BIM-based early design error detection?
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Case Study
How to quantify the economic benefits of using BIM in detecting design errors?
Source: D-Cube City, http://www.hoteljoin.com/agent/index.php/resv/main?hcode=1000&aid=bomultour
D3 (D-Cube) City
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D3 City
Types of Design Errors - Illogical Design
G. Lee, H. K. Park, and J. Won, "D3 City project — Economic impact of BIM-assisted design validation," Automation in Construction, vol. 22, pp. 577-586, 2012.
Illogical Design
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Discrepancies between drawings
Types of Design Errors – Discrepancy
G. Lee, H. K. Park, and J. Won, "D3 City project — Economic impact of BIM-assisted design validation," Automation in Construction, vol. 22, pp. 577-586, 2012.
Missing Information
Types of Design Errors - Missing Information
G. Lee, H. K. Park, and J. Won, "D3 City project — Economic impact of BIM-assisted design validation," Automation in Construction, vol. 22, pp. 577-586, 2012.
Missing
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Illogical Design22%
Discrepancy51%
Missing items27%
Frequency of Errors
First Challenge: Rework Cost Calculation
Direct construction costs + Delay….Reinforcement costs +
X 2
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The Second Challenge
“Experienced engineers can find most design errors before construction.”
A total of 52%
Unlikely to find50:50 chanceLikely to find
Percentage of Errors
G. Lee, H. K. Park, and J. Won, "D3 City project — Economic impact of BIM-assisted design validation," Automation in Construction, vol. 22, pp. 577-586, 2012.
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G. Lee, H. K. Park, and J. Won, "D3 City project — Economic impact of BIM-assisted design validation," Automation in Construction, vol. 22, pp. 577-586, 2012.
Interpretation of Likelihood – Static Approach
25% 50% 75%
Cost of Errors
Likelihood ofDetecting Errors
Static Approach
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Interpretation of Likelihood – Probabilistic Approach
25% 50% 75%
Cost of Errors
Likelihood ofDetecting Errors
Probabilistic Approach
BIM ROI
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G. Lee, H. K. Park, and J. Won, "D3 City project — Economic impact of BIM-assisted design validation," Automation in Construction, vol. 22, pp. 577-586, 2012.
Potential saving from design error avoidance
US$ Percentage Accumulative
Total construction costs 583,000,000
Prevented rework costs 1,455,325 0.25%
One-week delay 1,335,056 0.23% 0.48%
One-month delay 5,340,223 0.92% 1.17%
Expected Saving in terms of the total construction costs
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US Geological Survey, “Material Flow and Sustainability”http://pubs.usgs.gov/fs/fs-0068-98/fs-0068-98.pdf
40% of raw materials use
Construction Market
Most importantly…
• The project team felt that this BIM ROI analysis method and its results were reliable.
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Lessons Learned
• Data must be collected “during” construction. • A detailed data collection scheme (including metrics,
data collection process and forms) must be established “before” construction.
• The data collection process should not be an additional task, but should rather be assimilated as a part of a team’s daily work process.
Metrics
National/Economy Level
Organization Level
Project Level
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Metrics
National/Economy Level
Organization Level
Project Level
P. Teicholz. (2004). Labor Productivity Declines in the Construction Industry: Causes and Remedies. Available: http://www.aecbytes.com/viewpoint/2004/issue_4.html
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A Comparative Analysis of the Construction Labor Productivity
0.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
80.00
90.00
100.00
1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
USJapanS. KoreaUK
J.-S. Won and G. Lee, "An analysis of the international competitiveness of productivity in the Korean construction industry " Korean Journal of Construction Engineering and Project Management, vol. 9, pp. 75-83 2008. 8. 2008.
SLIM BIM Indexes – “Diamond Web”
0%
100%
Depth of BIMImplementation
Years using BIM
Level of BIM Proficiency
Level of BIM Adoption
S. Korea (2012) N. America (2009)
N. America (2012) W. Europe (2010)
BIG, (2012) “SLIM BIM & BIM SLAM” https://sites.google.com/site/bimslam/
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SLIM BIM Indexes – “Rugby Ball”
South Korea (2012) N. America (2009)
N. America (2012) W. Europe(2010)
BIG, (2012) “SLIM BIM & BIM SLAM” https://sites.google.com/site/bimslam/
Engagement Index
H. M. Bernstein, S. A. Jones, M. A. Russo, D. Laquidara-Carr, W. Taylor, J. Ramos, et al., "2012 Business Value of BIM in North America," McGraw Hill Construction, Bedford, MA2012.
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Metrics
National/Economy Level
Organization Level
Project Level
BIM SLAM Indexes
BIM Goal 1e.g., cost reduction
BIM Use 1
BIM Use 2
…
e.g., design coordination
e.g., design review
BIM KPI 1
BIM KPI 2
BIM KPI 3
…
e.g., labor productivity
e.g., # of RFIs
e.g., planned vs. actual schedule
BIM Goal 2e.g., energy saving
Goal Use Key Performance Index
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BIM SLAM Indexes – Selected BIM KPIs
BIM KPIsG
oals
BIM Uses
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http://big.yonsei.ac.kr
Thank you.