Abstract:Due to the increasing frequency of highway disasters caused by abnormal events, the resilience of highway transportation infrastructures has been seriously challenged. At present, the research on resilience system in the field of highway is still in the initial stage, and a perfect technical system has not yet been formed. Based on the current several common "resilience" theories, the "resilience triangle" theory is further studied, and the "improved resilience trapezoid" theory is formed in the field of highway infrastructure to simulate the changes in the performance of the highway transportation system before and after the disaster. In the chronological order of disasters, the technical measures in three stages of early warning, disaster guarantee and post-disaster recovery are summarized, and the resilience improvement strategy of highway transportation infrastructures is proposed from the perspective of multiple subjects, which lays a good foundation for solving the imperfect construction of the current highway resilience system.