The Portfolio Balanced Risk Index Model and Analysis of Examples of Large-Scale Infrastructure Project

Table 13

Early warning level of project risk index.

Portfolio balanced risk index	Qualitative description of the project risk severity	Early warning level and coping strategy
Above 0.40	The risk is very serious and the overall value may result in significant loss	Red warning interval, first-grade powerful measures are taken to control and resolve risk
	The risk is comparatively serious and the overall value may result in great loss	Orange warning interval, secondary measures are taken to control and resolve risk
	The risk is generally serious and the overall value may result in great loss	Yellow warning interval, three-grade measures are taken to control and resolve risks
	The risk is comparatively mild and the chance that the overall value deviating from the expected goal is minimal	A relatively safe interval, analyze the cause of risks and verify risk control measures
Below 0.1	The risk is comparatively mild and the chance of the overall value deviating from the expected goal is very minimal	Safe interval, analyze the cause of risks