Study On Theory Of Urban Eco-transportation Planning Based On The Traffic Environmental Carrying Capacity

With rapid industrialization and urbanization, the demands of urban transportation has increased urgently and the problems have come to being that the quality environment has become worsening and the using efficiency of traffic resource has become lower. Urban transportation has becom the restriction factor of the normal exertion of the urban function and the improvement of the people's living standard . On the view of traffic environment,this paper studies the restriction effect of traffic environment to the traffic development .And on the strategic traffic planning level, the concept that the developmental scale , orientation and intensity of urban transportation must be in the rang of the traffic environment carried is put forward.And it is wrong that the traffic development woulde be cost the destruct the quality of the environment. After the in-depth study and compare of the main urban developmental modes ,the paper puts forward the concep of the urban eco-transportation that the ideal urban developmental mode fits into the demands of eco-city.This ideal urban transportational mode is based on the traffic enviromental carrying capacity(TECC).Then the theoretics frame of the urban eco-transportation planning is formed.During the process of urban eco-transportation planning ,the TECC can be unproved by confirming the rational traffic structure and exploiting the urban land use model oriented by the rational traffic structure.Besides,on the basis of the analysis of the eco-transportation planning phase brings forward the calculation content resent phase and the measure models of the TECC and applies these models to the practical calculations of the TECC of Xi'an city.