Abstract: The frequent occurrence of accident-type disasters has caused widespread concern in emergency logistics of many countries. Therefore, the study on the regional emergency logistics system for accident-type disasters is very crucial. Identifying the component elements of the system and exploring the mechanism of interaction among various elements are the prerequisite and basis for solving this problem. Based on 30 accident-type disaster cases, the study uses grounded theory to carry out a three-level coding of the original data, identifies seven types of component elements and determines the interaction relationship model among them. The results prove that the component elements of the regional emergency logistics system for accident-type disasters include “command layout”, “policy supervision”, “aftermath disposal”, “integration and coordination”, “innovative development”, “contingency plan” and “information sharing”. The interaction model is composed of “internal drive”, “external guidance” and “intermediate connection” modules. “Command layout”, “policy supervision”, “aftermath disposal” and “integration and coordination” are the elements that directly act on “internal drive” module; “innovative development” and “contingency plan” are the elements that indirectly act on the “external guidance” module; “information sharing” is the element that cyclically acts on the “intermediate connection” module. The study will enrich the theoretical results in the field of emergency logistics and strengthen the theoretical basis for the construction of the regional emergency logistics system for accident-type disasters as the findings are objective, universally applicable and usable for reference and practice.

Key words: accident-type disasters, emergency logistics, component elements, grounded theory, the interaction model