Abstract
Fails of lifeline supplies are triggered by many factors such as natural disasters. Development of their impact assessments and countermeasure methodologies for each trigger are critical tasks in disaster risk management of lifeline systems. Therefore, this paper conducted the CVM type of economic impact survey on local residents, considering the multiple lifeline (electricity, gas, water) disruption scenarios, which is peculiar to the earthquake disaster case. One of the obtained results is that WTP for avoiding all the lifeline disruptions produces larger values than the sum of WTPs for avoiding individual lifeline disruption respectively.
