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.

• Corporate Authors:

  Army Construction Engineering Research Laboratory

  P.O. Box 4005
  Champaign, IL  United States  61820
• Authors:
  • Kirby, J G
  • Gigas, J M
• Publication Date: 1974-4

Media Info

• Features: Figures; References; Tables;
• Pagination: 53 p.

Subject/Index Terms

• TRT Terms: Average; Building; Components; Costs; Evaluation; Forecasting; Life span; Mathematical models; Ratings; Service life; Testing
• Subject Areas: Construction; Design; Economics; Finance; Highways; Society;

Filing Info

• Accession Number: 00096893
• Record Type: Publication
• Report/Paper Numbers: CERL-TR-P-36 Final Rpt.
• Files: TRIS
• Created Date: Sep 10 1975 12:00AM