- Tu/Th 7:30 to 8:00 am
- Tu 9:30 to 10:30 am
- by appointment
Ph.D. - Civil Engineering, University of California at Berkeley, 1980
M.S.C.E. - Civil Engineering, Carnegie Mellon University, 1975
B.S.C.E. - Civil Engineering, Carnegie Mellon University, 1973
Construction Management. Project change and its impact on productivity, cost, and schedule.
Project change and its impact on project labor productivity. Construction Management. Design-Construction processes. Cost and Schedule analysis. Cumulative impact. Project Management.
Marlin J. Knutson Award for Technical Achievement, American Concrete Pavement Association, 2002
Outstanding Service Award, American Society of Civil Engineers, 1993
Presidential Young Investigators Award, National Science Foundation, 1985
Presidential Citation, Project Management Institute (PMI)
Halliburton Award for Teaching Excellence in the Engineering College, University of Illinois, Urbana-Champaign (UIUC)
CE167 - Engineering Project Management
CE268H - Advanced Planning and Control Concepts
CE268I - Business Fundamentals for Engineers
Recent Publications
Journal Papers
William Ibbs, Audrey Bascoul, and Long D. Nguyen, “Modified Total Cost Principles for Cumulative Impact Claims, Construction Lawyer. Winter 2012, 26-38.
William Ibbs, “Construction Change: Likelihood, Severity and Impact on Productivity," Journal of Legal Affairs and Dispute Resolution in Engineering and Construction. 4(3), August 2012, 67-73.
William Ibbs, “Measured Mile Principles,” Journal of Legal Affairs & Dispute Resolution in Engineering & Construction. 4(2), May 2012, 31-39.
Lim, B. T.H., F. Y.Y. Ling, C. W. Ibbs, B. Raphael and G. Ofori, "Empirical Analysis of the Determinants of Organizational Flexibility in Construction Business," Journal of Construction Engineering and Management, March 2011, Vol. 137(2), pp. 225-237, doi: 10.1061/(ASCE)CO.1943-7862.0000272.
• Ibbs, W., L. D. Nguyen and L. Simonian, "Concurrent Delays and Apportionment of Damages," Journal of Construction Engineering and Management, February 2011, Vol. 137(2), pp. 119-126, doi: 10.1061/(ASCE)CO.1943-7862.0000259.
• Ibbs, W. and M. Liu, "An Improved Methodology for Selecting Similar Working Days for Measured Mile Analysis," International Journal of Project Management, 2011, Vol. 29(6), pp. 773-780, doi: 10.1016/j.ijproman.2010.07.006.
• Nguyen, L.D., J. Kneppers, B. G. de Soto and W. Ibbs, "Analysis of Adverse Weather for Excusable Delays," Journal of Construction Engineering and Management, December 2010, Vol. 136(12), pp. 1258-1267, doi: 10.1061/(ASCE)CO.1943-7862.0000242.
• Chang, A. S., F.Y. Shen and W. Ibbs, "Design and Construction Coordination Problems and Planning For Design-Build Projects New Users," Canadian Journal of Civil Engineering, December 2010, Vol. 37(12), pp. 1525-1534, doi: 10.1139/L10-090.
• Nguyen, L.D. and W. Ibbs, "Case Law and Variations in Cumulative Impact Productivity Claims," Journal of Construction Engineering and Management, August 2010, Vol. 136(8), pp. 826-833, doi: 10.1061/(ASCE)CO.1943-7862.0000193.
• Chih, Y.Y. and W. Ibbs, "Choosing a Project Delivery System in a Multi-Project Environment," Construction Law International Journal, March 2010, Vol. 5(1), pp. 7-10.
• Choi, K., E.B. Lee, W. Ibbs and Y.W. Kim, "Multifaceted Public Outreach and Cost-Benefit Analysis for Its Effectiveness Validation," Journal of Construction Management & Economics, August 2009, Vol. 27(8), pp. 771-782, doi: 10.1080/01446190903096591.
• Young, H.K., Y.Y. Chih and C.W. Ibbs, "Towards a Comprehensive Understanding of Public Partnership (PPP) for Infrastructure Development," California Management Review, 2009, Vol. 51, No. 2, pp. 51-78.
• Ibbs, W., L. Simonian and G. McEniry, "Evaluating the Cumulative Impact of Changes on Labor Productivity - an Evolving Discussion," Cost Engineering, December 2008, Vol. 50, No. 12, pp. 23-29.
• Ling, F.Y.Y., C.W. Ibbs and E.W. Chew, "Strategies Adopted by International Architecture, Engineering, and Construction Firms in Southeast Asia," Journal of Professional Issues in Engineering Education and Practice, July 2008, Vol. 134, No. 3, pp. 248-256, doi: 10.1061/(ASCE)1052-3928(2008)134:3(248).
• Nguyen, L.D. and W. Ibbs, "FLORA: New Forensic Schedule Analysis Technique," Journal of Construction Engineering and Management, July 2008, Vol. 134, No. 7, pp. 483-491, doi: 10.1061/(ASCE)0733-9364(2008)134:7(483).
• Ibbs, W. and L.D. Nguyen, "Analysis of Delay Damages for Site Overhead," Cost Engineering, The AACE International Journal of Cost Estimation, Cost/Schedule Control and Project Management, March 2008, Vol. 50, No. 3, pp. 30-33.
• Lee, E-B., H. Lee and C.W. Ibbs, "Productivity Aspects of Urban Freeway Rehabilitation with Accelerated Construction," Journal of Construction Engineering and Management, ASCE, October 2007, Vol. 133, No. 10, pp. 798-806, doi: 10.1061/(ASCE)0733-9364(2007)133:10(798).
• Ibbs, W. and L.D. Nguyen, "Alternative for Quantifying Field-Overhead Costs," Journal of Construction Engineering and Management, ASCE, October 2007, Vol. 133, No. 10, pp. 736-742, doi: 10.1061/ASCE0733-93642007133:10(736).
• Ibbs, W. and L.D. Nguyen, "Schedule Analysis Under the Effect of Resource Allocation," Journal of Construction Engineering and Management, ASCE, February 2007, Vol. 133, No. 2, pp. 131-138, doi: 10.1061/(ASCE)0733-9364(2007)133:2(131).
• Ibbs, W., L.D. Nguyen and S. Lee, "Quantified Impacts of Project Change," Journal of Professional Issues in Engineering Education and Practice, January 2007, Vol. 133, No. 1, pp. 45-52, doi: 10.1061/(ASCE)1052-3928(2007)133:1(45).
• Ling, F.Y.Y., C.W. Ibbs and W.Y. Hoo, "Determinants of International Architectural, Engineering, and Construction Firms - Project Success in China," Journal of Construction Engineering and Management, ASCE, February 2006, Vol. 132, No. 2, pp. 206-214, doi: 10.1061/(ASCE)0733-9364(2006)132:2(206).
• Chang, A.S. and C.W. Ibbs, "System Model for Analyzing Design Productivity," Journal of Management in Engineering, ASCE, January 2006, Vol. 22, No. 1, pp. 27-34, doi: 10.106/(ASCE)0742-597X(2006)22:1(27).
Conference Papers
• Ibbs, C.W. and Y.Y. Chih, "A Qualitative Comparison of Alternative Project Delivery Systems (PDSs) for Transportation Projects," Proceedings of the 1st International Conference on Transportation Construction Management, Orlando, FL, September 2008.
• Ibbs, C.W., Y.Y. Chih and J.B. Miller, "A Case Study of Virginia's Framework to Evaluate Unsolicited Public/Private Partnership Proposals: The Public-Private Transportation Act (PPTA)," Proceedings of the 11th World Conference on Transport Research Society, Berkeley, CA, June 2007.
• Nguyen, L.D. and C.W. Ibbs, "Delay Analysis Considering Resource Allocation," Proceedings of the Australasian Universities Building Educators Association (AUBEA) Conference, ISBN 0-9775325-0-X, University of Technology Sydney, Sydney, Australia, July 2006.
Technical Reports
• Lee, H., E.B. Lee and W. Ibbs, Life-Cycle Cost Analysis Procedures Manual Caltrans, Pavement Standards Team and Division of Design, November 2007, 134 pp.
• Burrows, C., C.W. Ibbs and others, A Comprehensive Technical Review of the Demonstration Bulk Vitrification System, Chartered by CH2M HILL Hanford Group Inc, September 2006, Vol. 1 and 2, 239 pp.
• Ibbs, C.W., et al., External Independent Review of the Mixed Oxide Fuel Fabrication Facility (MFFF) Project Critical Decision (CD) 2/3 Baseline, for the U.S. Department of Energy and the National Energy Technology Laboratory, Submitted by Burns & Roe Enterprises, Inc., BREI-LSP-R-06-03, 250 pp., May 2006.
• Ibbs, C.W., et al, Comprehensive Review of the Hanford Waste Treatment Plant Estimate at Completion, Bechtel National and the US Dept. of Energy, March 2006, 79 pp.
Other Publications
• Ibbs, C.W., "The Cumulative Impact of Change on Construction Labor Productivity," Construction Claims Newsletter, March 2008.