The application of quantitative risk analysis using Monte Carlo method becomes increasingly easy due to the
development of software solutions. However, a special attention should be given to the limited project resource
which is typical for most of the construction projects. In this case, the probability curves for project duration, cost
and other project parameters created using Monte Carlo method, are valid only if resource leveling heuristics that
is used in risk simulation process is the same as used for project scheduling and management.
A risk index taking into account the distance between the target dates (duration-cost) and the centroid of the
solutions cluster resulted from Monte Carlo simulation, together with their relative position as a combined
qualitative-quantitative index was proposed. Its trend variation become an additional tool for decision taking, as
time as the quality of input data in the Monte Carlo simulation is never good enough.