City Motor Vehicle Ownership And Environmental Traffic Capacity Of The Computing Model And Factor

With more and more rapid urbanization, how to establish the relation between amount of vehicle needed and traffic volume as well as other relative factors and how to control pollution of automobiles without influence on high living standard have become focuses for administrations in the process of making city plan. With the increasing of automobiles in urban areas, people have put more and more attention on pollution of automobile tail gas. The developed countries such as Europe and America have applied obligatory means to prevent pollution, and China have put into effect obligatory law and regulations since 1991. People have to fix tri-catalytic equipment on urban automobiles against pollution of them, but tri-catalytic can lead to more serious heavy metal pollution, whereas people have not thought to control the amount of automobiles in aspect of relation between environmental capacity and the amount of automobiles. Then the research discusses and analyzes each environmental factor of environmental pollution and the relation between them and the amount of automobiles; refers the concepts of environmental traffic capacity and traffic environmental capacity and finds the relation and difference between each factor and traffic capacity; establishes compute model for environmental traffic capacity and logical relation between it and traffic environmental capacity. In addition the research analyzes the relation between environmental factors and the amount of urban automobiles in Xi'an; finds the prominently relative factor-NOx, by regression analysis; proves the theoretical analyses. Finally, the research finds the largest amount of automobiles permitted by environment through analyzing situation of environment, influence of automobiles on environment and potentiality of development of automobiles in quantity , have calculated traffic capacity and traffic environmental capacity for Xi'an in 2005,2010 year...