The source and the timing of evacuation notice have significant impact on the evacuees' evacuation behavior in terms of decision making and subsequent evacuation timing.For example,evacuees receiving evacuation notice from media(radio,television.etc.),are more likely to take more than 24 h to evacuate once the evacuation decision is made. Similar insight is found for the households who receive evacuation notice early enough The greater the trip time that is required to reach a type of destination under normal circumstance, the more likely that the evacuees would take more than 24 h to evacuate once they actually decide to evacuate. Evacuees evacuating to a public shelter or a Church would prefer to evacuate as early as possible(less than an hour) their decision to evacuate, potentially because of the Socio-economic characteristics fact that public shelters are likely to provide necessary supplies. For example, respondents such as the income, age. race, and education also influence the elapsed time framework households would over 50 years old are more likely to take no more than 1 h to evacuate. Similarly, low income risk perception evacuate shortly after their decision evacuate(in no more than 1 potentially because of higher risk perception.