Railroad engineering has long construction cycle, huge investment and multitudinous risk factors in construction process of
railroad engineering. It's necessary to improve the level of railroad engineering risk management. The paper describes a simple
and effective risk management in an actual project: uses the fault tree to indentify the risk of JIBAO Additional second-line
engineering, carries on the appraisal with the analytic hierarchy process, points out the key risks that should be concerned and the
specific response