Due to abnormal climate, the flood disaster is occurred globally as well as domestically. The flood disaster measures have been researched continuously. In spite of the Prevention measures, the weather changes are difficult to predict accurately. So then, the evacuation places are essentially needed. The suitability of acceptable range of the current shelters is researched. This research is also analyzed whether both the ordinary people and elderly are considered when shelters are installed. Network analysis is conducted based on the evacuation speed of each subject. Vulnerable area is extracted as well. As a result, selection and management of the additional shelters are needed because the number and capacity of shelters is lacked in residential area.