Effective communications are essential to the successful completion of
engineering, procurement, and construction (EPC) projects. Research f
rom the Construction Industry Institute (CLI) confirms this hypothesis
. However, this finding would be of little benefit without a means for
measuring a project's communications effectiveness. This paper docume
nts the efforts of a CII research team in identifying and measuring cr
itical communications variables during the execution phases of EPC pro
jects. It confirms the common recognition of communication problems, p
rovides insight into communications theory, and outlines procedures us
ed by the research team throughout the study. Critical communications
variables identified in the process are consolidated into six manageab
le categories establishing the basis for a communications improvement
program. These categories in relative order of importance are accuracy
, procedures, barriers, understanding, timeliness, and completeness. T
he paper concludes by acknowledging that this is the first step in sol
ving project communications problems. To gain maximum benefit from thi
s research, the categories and variables identified must be incorporat
ed into an assessment tool and applied as part of a communications imp
rovement program.