| In recent years,with the clear positioning of Beijing’s capital function,the urban traffic passenger volume has gradually increased,and the Beijing Metro has also achieved unprecedented leap-forward development.With the continuous construction and operation of new lines in recent years,transfer is needed for the intersection of lines.However,because many existing railway stations do not have reserved transfer conditions,transfer transformation of existing stations is needed after the new lines are connected to meet the needs of transfer operation.Due to the complexity,concealment,uncertainty and related social factors of the metro project itself,as well as its unique position in Beijing’s three-dimensional public transport system,such renovation works of Beijing Metro can only be carried out without stopping operation and without affecting normal safe operation,which is even more difficult.In practical engineering,there are various risk factors in every link of operation condition transformation.Therefore,it is urgent for the government,construction units,operation units and other relevant parties to identify risks effectively,evaluate and control risks and ensure the smooth implementation of the project.Based on the characteristics of Beijing Metro’s structure,equipment,facilities and operation organization,this paper studies the basic theory of risk management in Metro reconstruction construction on the basis of project management characteristics such as complex system management,multi-relationship management,project group management and parallel management of transformation and operation.Class risk control methods are analyzed and compared.The WBS-RBS method is applied to identify the risk of the transfer and transformation project of Datun Road East Station on Beijing Metro Line 5,which is participated by our colleagues,and the risk factors are decomposed.According to the principle of establishing risk evaluation index system,the risk evaluation index system of the project is established,and the risk of the project is evaluated by the analytic hierarchy process(AHP)method to determine the risk level and importance of the project risk.Finally,according to the risk identification and evaluation of the project,and combined with the characteristics of the project,specific risk control measures are formulated to reduce the harm caused by the risk,providing a reference for future risk management of such projects. |