ESTIMATING THE LIFE EXPECTANCY OF FACILITIES
A model is presented and the procedures are described which predict the expected remaining life of facilities (LEF). The original model which used the concept of a weighted average is detailed. The revision of this model is described. A procedure was developed to assist in using condition ratings to estimate the expected remaining life of a building. The results are given of the testing of the LEF model on eight buildings. Further revisions of the model involved the re-examination of component selection, component lives, relative component costs, and the applicability of the model to a variety of building types. The approach described which requires a more detailed level of information on a "per-facility" basis than currently exists, minimizes personal bias by forcing evaluators to examine the principal components of all facilities.
Army Construction Engineering Research LaboratoryP.O. Box 4005
Champaign, IL United States 61820
- Kirby, J G
- Gigas, J M
- Publication Date: 1974-4
- Features: Figures; References; Tables;
- Pagination: 53 p.
- TRT Terms: Average; Building; Components; Costs; Evaluation; Forecasting; Life span; Mathematical models; Ratings; Service life; Testing
- Subject Areas: Construction; Design; Economics; Finance; Highways; Society;
- Accession Number: 00096893
- Record Type: Publication
- Report/Paper Numbers: CERL-TR-P-36 Final Rpt.
- Files: TRIS
- Created Date: Sep 10 1975 12:00AM