Emergency logistics network node location problem based on exact-gravity method

When the various natural disasters, accidents, and public safety disasters of the frequency of bursting and scale of the growth. So it is most important to build an effective emergency response mechanism. Emergency Logistics node location is an important component of emergency management activities. And ideal emergency logistics node address will speed up the operation of emergency logistics management, and will improve the speed of relief materials reached the site of disaster. This paper studies emergency logistics network node location problem, and verifies the effectiveness of exact-gravity method in emergency logistics network node location problem by example.