TY  - CONF
TI  - Use of Percent of Constraint Removal to Measure the Make Ready Process
AU  - Jang, Jin Woo
AU  - Kim, Yong-Woo
AD  - Ph.D. Candidate, Constr. Engr. and Mgmt. Program, Constr. Mgmt. and Wood Product Engrg. Department, 156 Baker Lab, State University of New York, College of Environmental Science and Forestry, Syracuse, NY 13210, 315/470-6831, FAX 315/470/6879, jijang@syr.edu
AD  - Assistant Professor, Constr. Engr. and Mgmt. Program, Constr. Mgmt. and Wood Product Engrg. Department, 153 Baker Lab, State University of New York, College of Environmental Science and Forestry, Syracuse, NY 13210, 315/470-6839, FAX 315/470-6879, ywkim@esf.edu
ED  - Pasquire, C.L, Christine L.
ED  - Tzortzopoulos, Patricia
PY  - 2007
DA  - 2007/07/18
T2  - 15th Annual Conference of the International Group for Lean Construction
C3  - 15th Annual Conference of the International Group for Lean Construction
CY  - East Lansing, Michigan, USA
SP  - 529
EP  - 538
AB  - Project process controls have traditionally occurred after-the-fact, and have focused exclusively on finding discrepancies and measuring results after a specific period of time. The Last Planner® System (LPS) is a production planning and control tool focused on the make-ready and shielding processes for improving workflow reliability. In the LPS, percent plan complete (PPC) has been used as a measurement of the shielding process. However, the system lacks a measurement for the makeready process. This paper proposes a new measurement for the make-ready process called percentage of constraint removal (PCR). This new measurement of constraint removal would be an efficient and flexible means to measure the make-ready process. This measurement provides 1) a leading indicator for work production performance, 2) a performance measurement for the make-ready process, and 3) how appropriately to size the look-ahead window. This paper presents three case studies of heavy construction projects where both performance measurements, PCR and PPC, were applied and investigated. How PCR and PPC are correlated with progress performance was also studied.
KW  - Last Planner® System
KW  - make-ready process
KW  - percent plan complete
KW  - percentage of constraint removal
KW  - case study.
L1  - https://www.iglc.net/papers/details/497/pdf
UR  - https://www.iglc.net/papers/details/497
DB  - IGLC.net
LA  - English
N1  - Export date: 04 October 2026
ER  -