2. Risk assessment: Risk assessment includes risk probability, impact scope and severity, which can generally be carried out by using risk matrix or other assessment tools.
3. Risk control measures: According to the risk assessment results, formulate corresponding risk control measures, including preventive measures, corrective measures and emergency measures.
4. Risk tracking and monitoring: Track and monitor the implementation process of risk control measures, find and deal with risks in time, and reduce the impact of risks on engineering, personnel and environment.