
48 • Project Planning and Project Success: e 25% Solution
Wang and Gibson (2008) examined preproject planning data collected
from 62 industrial projects and 78 building projects, representing approx-
imately $5 billion in total construction cost. ey found that preproject
planning has a direct impact on the project success (cost and schedule
performance). e graph in Figure8.1 clearly illustrates the point, showing
a linear relationship between the quality of planning and the cost aspect
of project success.
ere is extensive empirical research in the construction industry linking
planning phase completeness and quality to project success ...