The target of urban transportation management planning is to farthest lighten traffic congestion and to advance the service ability of road network . the urban transportation management planning researchs the movement effect between traffic facility and traffic manner . it combines with the urban collectivity planning , road planning and road network construction , utilizes the principles of traffic engineering science and the methods of systems engineering science 它的目的是通过研究城市各种交通设施和交通方式的相互运作，运用交通工程学原理和系统工程方法，与城市总体规划、道路规划和路网建设有机给合，对交通管理进行系统、全面的研究和规划，从而最大程度地缓解现有的道路交通矛盾，提高现有路网的服务能力。
Meanwhile , the evaluation has changed from a single aspect su ch as vegetation and soil to a comprehensive evaluation including deterioration of environment and degradation of soil morphology and fertility . studies on a theoretical basis and basic principle for restoration and reconstructions . the study on benefits and functions of a restorated ecosystem 恢复与重建的生态系统功能与效益的研究，其效益评价由生物多样性、水土保持功能、土壤养分、小气候等单一方面转向利用灰色系统理论及系统工程方法进行综合评价。
