After the survey and comparison of some specific intersections , it is also found that the vollume of pedestrian and bycicle during the intersection area play an important role in deciding the level of an interseciton . so when we decide to improve the safety situation of an intersection we should pay more attention to the organization of pedestrian and bycicle 通过对一些交叉口进行调查,将交通流量数据与事故数据进行对比,发现交叉口的非机动车和行人流量达到一定规模时,就会给交叉口的安全水平带来很大的威胁,行人和非机动车的秩序管理应该作为交叉口安全改善的重点。
Combining operation of new way of safety management in hengdaohezi branch of train affairs , the thesis explains some new methods , such as adding up of a hundred safety marks , check of joint liability and linear management , and analyzes thoroughly management information system of safety statistics for branch of train affairs in analysis on system demand , analysis on system structure and function , and analysis on system data and data process . in the system , data standard of two " two violation " accident of workers and leaders is classified into three levels a , b and c , which is convenient to computer management 2 、结合横道河子车务段安全管理新办法的实施，论述了安全百分累计、连带考核、线性管理办法的基本思路和内容，从系统需求分析，系统组织结构与功能分析，系统数据与数据流程分析等方面，对车务段安全统计管理信息系统进行了详细分析设计，将职工、干部“两违”事故数据标准分为a ， b ， c三类，便于使用微机管理。
Then based on system modeling , complete the development of system and the testing of statistics by using . net technology , and carry out the analysis of the causes of civil aviation accident and find out the internal law , which is practically instructive for the effective regulation of the aviation security 在系统建模的基础上，利用. net技术完成系统的开发并完成航空事故数据的测试，进行了航空事故原因的分析，找出事故原因的内在规律，对有效地进行航空安全管理具有现实的指导意义！
Finally , according to test freeway , the research system is modified and tested . the algorithm process of the safety level quantification of road design is finished , and the calculation result ? reeway segment ? safety index value - is offered . furthermore , contrast between calculation result and actual accident data is processed to make sure the program feasibility 最后，针对试验道路，具体应用本文中的研究系统，计算、得到了道路各点位的安全指标值，并对计算结果与道路的实际事故数据进行对比，验证了系统的可行性。
The data about the accidents of the mountain areas and the highways in shaan ' xi province , especially for changan province , ningshan province , shiquan province , xitong freeway , xibao freeway , xihuang highway , had been investigated , settled and analyzed . the features of the accidents had been summed up . then the relevance between the accidents and factors had been analyzed by using the method - gray interaction analyses and the game had been presented basing on the real situation 本文通过对陕西省的山区、高等级公路的交通安全和管理现状进行调查，并重点针对以下区域：山区? ?长安县、宁陕县、石泉县；高等级公路? ?西潼高速公路；西宝高速公路；西黄一级公路的各项流量、事故数据进行整理，对事故的特征进行分析，总结其规律，用灰色关联分析法对事故因素与事故发生之间的关联性进行分析，在此基础上根据现实情况提出了相应对策。
On the basis of the idea of association rule combined with rough set , we propounded a kind of decision rule reduct algorithm based on preferential information , which was applied to the data analysis of traffic accidents of changchun city , so as to finish the implement of traffic accidents analysis system 摘要结合关联规则与粗糙集的思想，提出了基于偏好信息的决策规则约简算法，并将该算法应用于长春市历年的道路交通事故数据分析中，从而找出交通事故发生的潜在规律。
