AbstractOne of the critical challenges in incident management is to provide timely response. Therefore, in this paper, a modified PROMETHEE II (Preference Ranking Organization Method for Enrichment Evaluation) is proposed to improve the efficiency and response time in incident management. Specifically, since the computing time and computation complexity of PROMETHEE II increase with the increase of the number of alternative incident management plans and evaluation criteria, in this paper, multiple steps of traditional PROMETHEE II are integrated into one formula to simplify the computational process, reduce the number of comparisons and database visits, and decrease disc space occupation. An experiment is designed to test and compare the traditional PROMETHEE II method and the modified method using simulated earthquake data. The results show that the modified method improves the efficiency of PROMETHEE II and is able to provide timely evaluation of incident management plans.