Urban ecological traffic evaluation based on matter element analysis

Through comprehensive analysis to urban traffic system, it raises an evaluation system. The theoretical frame of ecological traffic evaluation is presented. On the basis of setting up grade evaluation, it adopts membership function and gets quantized evaluation index of urban ecological traffic. Because performance of the common measure that can´t be common between different indices, it utilize matter element matrix to make the indices standardization. Matter element matrix can solve the uncertain and incompatible problem of the evaluated factors in assessing urban ecological traffic. The comprehensive appraisal model of urban ecological traffic is set up by using matter element analysis theory. It is pointed out that the environmental carrying capacity can be increased through developing a rational transport structure and establishing a scientific urban land utilization modal. Thus the eco-city can be developed, and the sustainable development of transportation can be realized. And it carries a comprehensive appraisal on the existing ecological traffic for one city. The evaluation results indicate that the existing ecological traffic of this city belongs to `tree grades´ which is identical with the real expert evaluation results.