Abstract: In order to evaluate the emergency support capacity for dangerous chemicals transportation accidents in special sections of sea - crossing bridge scientifically and objectively,quantifying the evaluation index and evaluation model, this paper puts forward an evaluation index system based on the four attributes of accident emergency warning, accident inducement analysis, emergency response and rescue, emergency organization and management. AHP is used to determine the weight of indicators at all levels, and fuzzy comprehensive evaluation method is used to calculate and determine the level of emergency support capacity. Taking a sea - crossing bridge as an example, the results show that the accident emergency support capacity of the sea - crossing bridge section is in a good state, and there is still a large space to improve the emergency response capacity to ensure the safety of dangerous chemicals transportation.

Key words: transportation of dangerous chemicals, sea - crossing bridge, emergency management, AHP