Paper’s purpose is to face some issues linked to emergency management. Crosscutting emergency preparation and management, the article will review two relevant aspects of city’s preparedness: complexity and knowledge. The aim is to put urban government in relation with emergency studies, trying realize a constellation of some limits of a separated fields risk management model. Conclusions would try to face the emerged dyscrasias, showing the positive effects that a governance approach could have.
Keywords: Emergency plan; disaster; governance; risk; complexity