Evaluation model of urban expressway nodes based on entropy weight and variable weight model

摘要

A new method based on information entropy theory and variable weight theory was used to evaluate urban expressway nodes in the present research. First of all, theory evaluation index system of urban expressway nodes was established on the basis of influence factors. Secondly, constant weight was established based on information entropy theory and state variable weight vectors were chosen according to the interplay of the influence factors. Thirdly, variable weight was established by using the constant weight and state variable weight vectors. Finally, the model was verified by an example. The results showed that the model based on variable weight could better evaluate the importance of urban expressway nodes and provide a theory for planning and designing urban expressway nodes.