TY  - CONF
TI  - Root Causes of Clashes in Building Information Models
AU  - Tommelein, Iris D.
AU  - Gholami, Sepide
AD  - Professor, Civil and Environmental Engineering Department, and Director of the Project Production Systems Laboratory (p2sl.berkeley.edu), 215-A McLaughlin Hall, Univ. of California, Berkeley, CA 94720-1712, USA, Phone +1 (510) 643-8678, tommelein@ce.berkeley.edu
AD  - Research Volunteer, Project Production Systems Laboratory, 215-A McLaughlin Hall, Univ. of California, Berkeley, CA 94720-1712, gholami.sepide@gmail.com
ED  - Tommelein, Iris D.
ED  - Pasquire, Chrisitne L.
PY  - 2012
DA  - 2012/07/18
T2  - 20th Annual Conference of the International Group for Lean Construction
C3  - 20th Annual Conference of the International Group for Lean Construction
CY  - San Diego, California, USA
AB  - Building Information Models (BIM) support designers and builders in creating and coordinating system designs and planning work. In practice—out of necessity—this includes checking that systems do not clash, but what constitutes a clash? How do clashes come about? Do clashes relate to design-, buildability-, or building- performance qualities? How does a clash detection process fit (or not) in lean project delivery? In this paper we describe our findings from research into clashes. Our sample is biased in that a number of the people we spoke with have been working in Integrated Project Delivery (IPD) teams, with commercial terms spelled out in an Integrated Form Of Agreement (IFOA). Many are co-located on their project site—at least some part of each week—so that they can work together closely as their thoughts on design and construction unfold. It is common practice for these teams to share their BIMs, each discipline-specific model having been developed by a specialist design- or contracting firm, and integrate them in a big-room setting. Nevertheless, this integration process invariably appears to include the identification and resolution of clashes. When viewing these BIM development practices from a ‘lean’ perspective, we found that many are far from lean. Accordingly, we present opportunities for process improvement when using of BIM in pursuit of lean ideals.
KW  - Building Information Model (BIM)
KW  - BIM pathology
KW  - clash detection
KW  - root-cause analysis
KW  - design management
KW  - tolerances
KW  - constructability
KW  - contingency
KW  - waste
L1  - https://www.iglc.net/papers/details/850/pdf
UR  - https://www.iglc.net/papers/details/850
DB  - IGLC.net
LA  - English
N1  - Export date: 04 October 2026
ER  -