通过分析气候异常对交通运输系统在勘察、设计、施工和运营各个阶段的影响。针对各地区气象、地理条件和各种交通工具对气候异常的反应，设计一个气候灾害对交通系统影响的分析评估框架模型，包括气候异常爆发可能性预报、气候灾害严重程度等级评判、交通系统安全性分析三部分，可对气候异常对交通系统产生的影响作出全面的评判。文章重点论述了交通运输防御气候异常的战略性对策，提议建立一个集监测、预警、指挥、救援、保险、设施建设和资料库为一体的交通运输综合减灾系统。同时针对不同交通工具，分别提出了系统的对策措施。

Climate abnormally has significant impact on each period of transportation systems, from line surveying, designing, construction and operation. So, itis of momentous significance to make thorough investigations and studies on theimpact mechanism of climate abnormally on transportation systems and put out perfect proposal to mitigate the impacts. Due to the different meteorological and geographical condition in each area, theresponse of each transport to abnormal climate is different. It is necessary toestablish a set of analysis and assessment system of forecasting, defense or reducing of abnormal climate. The system includes three parts: a] the forecasting model of possible burst of climate disaster; b] the judging model of order of climate disaster seventy; and c] the analysis model of transportation system safety. According to this system, the impact of abnormal climate on transport is to be overall given. In order to reduce the impact of abnormal climate, the establishment of unified system to coordinate and manage is suggested. The system contains six parts: a] the command system of transport defending climate disaster, hi the forecasting system of abnormal climate, c] the construction system of transport infrastructure, d] the rescuing and mediating system of disaster or accident, e] the insurance system of providing disaster relief, and f] the database of transport defending and reducing climate disaster. In view of different transport, the countermeasures on people, transport means and line environment to improve the ability of defending and reducing abnormal climate are respectively suggested.