This document discusses the importance of including risk factors in schedule risk analysis. It provides examples of risk events and risk factors, and shows how ignoring risk factors can lead to distorted results. A simulation was run on a construction project both with and without including risk factors. The results showed that including risk factors extended the projected project completion date by 75 days. The output also identified major construction works as more critical than infrastructure works when risk factors are considered. Incorporating risk factors provides a truer reflection of project risk exposure.