Safety Evaluation Of Jinliwen Highway Lishui Segment Based On Combined Method

In recent years, our country has paid more and more attention to the road safety, carried out a variety of security measures, carried out a large number of accident prone sections of the study. In practical work, many experts and scholars at home and abroad are in the field of highway alignment evaluation methods were in-depth study, by means of research methods, qualitative and quantitative research on the content of the research.. In this paper, based on the summary of domestic and foreign experts and scholars of road safety evaluation method, select the most representative methods of each stage in the development process of road safety evaluation, respectively located in Zhejiang Jinliwen highway Lishui section of road safety evaluation, study the relationship between the evaluation results of each method, reveal the formation mechanism of different types of accidents, and provide reference for the selection of road safety evaluation methods at different stages.First of all, the paper uses the review stage of road safety evaluation method for the most commonly used--Based on the highway alignment design specification of safety evaluation method of road of road alignment safety evaluation, on the basis of the road alignment design of CAD engineering drawings, the design scheme of road plane, vertical section, cross section curve and line of sight elements verification.Secondly, based on the collection of the road accident figures in nearly 10 years of Jinliwen highway Lishui section, using the statistical accident data and fuzzy clustering method of the data mining, study of road accident black spots and the road accidents in different kinds of accidents of distribution.Thirdly, using Driver-Vehicle-Road (Environment) system co-simulation technology, established to reflect the road geometry and slippery condition of continuous spatial smoothing 3D pavement model, simulation of car in Jinliwen highway driving process, according to the vehicle response parameters and driving driving behavior parameter evaluation driving stability and ride comfort identify driving risk and load driving a high degree of road location, Jinliwen highway safety evaluation.Then, the research domain of vehicle dynamics test tool wheel six component instrument introduced road safety evaluation of real vehicle test, based on the vehicle road coupling dynamics theory, the road alignment change of wheel force reflect to determine the possible existence of highway alignment defects and potential accident cause.Finally, comparative analysis of the above four kinds of different road safety evaluation method and evaluation results. Analysis various methods of conditions of use and effect evaluation, provide a reference for in the preliminary design, construction, traffic operations at different stages of the road safety evaluation method of choice.