Good morning/afternoon/evening ! With the spread of H5N1, potential next pandemic will be a terrible threat to human beings. It is necessary for us to develop feasible and effective pandemic preparedness and response strategy. The resident traveling survey is implemented by Chinese Center for Disease Control and Prevention. The purpose of the survey is to learn about the residents' traveling habits through collecting individual traveling data (including the distance from home to work/school and other traveling within past 7 days) to provide scientific evidence for establishing pandemic modeling and developing the strategy of pandemic influenza preparedness and response in China.