Crisis management is a special type of collaborative situation in which the actors are subject to an uninterrupted stress. To deal with the important consequences (human and economic losses) of these situations, we study how to represent emergency management situations based on experience feedback. We use several techniques: situations representations, knowledge engineering techniques and scenarios definition. Several dimensions are considered in this study: organization, communication and problem solving activities. We present in this paper our first results related to the representation of a specific type of crisis management: a road accident. Our first concern is to define the structures and interface in order to handle experience of crisis management. This creates the necessary foundation to help the actors to make decisions during the management of crisis. This work is done with the collaboration of the Aube' Emergency Department.