| With automobile possess amount increasing each year, vehicle have not been contained by road transportation establishment, consequently road traffic accidents often happened and brought loss to people life and belongings. Road transportation system is component of people, vehicle, road, environment, anyone element destroyed that will lead to road traffic accidents happened. Research of this paper is mainly road aspect,via research for domestic and foreign road traffic accidents, foreign people average automobile possess amount is much more than my country, but road traffic accidents frequency much less, because of foreign countries have a suit of full road traffic safety appraise system in road traffic safety guarantee aspect. By appraising to safety of road can prevent traffic accidents and control in effect before traffic accidents, meanwhile, accidents when happening and have happened will be ensured in time.This paper appraised road traffic via investigating widely Ji Lin Province road traffic status, combining Ji Lin Province road characteristic from total area of JI LIN Province, several expressways, a section of the certain expressway, viz. from face to line, from line to point.1)To appraise road traffic safety for total area is propitious to find influence of road traffic safety on road and circumstance of people, vehicle, road and circumstance, Ji Lin is province that the four seasons are distinct, the climate is different in each season, thus will lead to happen different accident, so it is highly necessary that appraising road traffic safety for total area.When appraising for total area of Ji Lin Province, firstly confirm the indicator of road traffic safety appraisement,via analyzing indicator and settling traffic datum that have obtained. Secondly apply statistics means to analyze the datum and confirm the factor of affecting road traffic safety, find cause that each factor affect road traffic safety. Lastly obtain relation of each factor and road traffic accident by analyzing datum, confirm total development trend of road traffic accident.2) Reason of safety rank is analyzed by appraising road safety for one area and combining particular status of each road. The cause is analyzed for road of more accidents and more dangerous section of a highway, give amendatory advices for the cause. The cause is analyzed for road of less accidents and safer section of a highway, give experience to other roads, it is importantly helpful for reducing road traffic accident.Several expressways will be appraised for the area, FAHP is applied to safety appraisement analysis for five expressway was chosen in this paper. Firstly affecting factors of road transportation safety are analyzed, found fuzzy consistency matrix by several influencing factors chosen. Proportion of each factor of expert evaluation is combined and disposed conformably. Lastly single factor priority value of each expressway will be computed, then confirm which expressway is good and is bad in certain aspect and which one is more excellent and inferior in synthetic aspect.3)After appraising face, line of road traffic, lastly points of road traffic, more points of the road traffic accident are confirmed by choosing one expressway. Via analyzing accident more points, can find main cause of accident, can confirm type of accident, can obtain relation of accident and road traffic condition, then may find out shortcoming of road traffic design, adopt pertinence amendatory measure, the least devotion can exchange for the farthest reducing accidents, then can improve in effect present road safety level.Dynamic clustering analysis means is mainly applied to more point of accident confirmed, firstly base on point of accident (peg number of road) confirming first agglomerate point, computer section of more accident road with dynamic clustering analysis means, viz. AC section of road in this paper. accidents character indicator is converted to relative addition of prevalent consistent unit economy loss with danger degree, more than difference standard is more point of accident.Base on road line form of more point of accident and type of accident in the paper, bring forward some handling homologous strategy and particular actualizing scheme.
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