Powerful public transportation infrastructures are indispensable for today's rapidly growing metropolitan areas and service breakdowns potentially affect millions of passengers. Thus, fast mitigation of emergency situations is a high-priority issue in facilities such as airports or metro systems. We propose a decision support system for emergency management in metro systems and a prototypical implementation that employs rule-based processing of sensor events to detect exceptional situations such as fires. Its specialized 2D/3D user interface assists the operator in choosing adequate actions.
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