Research On Traffic Accident Scene Diagram Drawing System & Its Integrating With Accident Reconstruction

With the fast development of economy, the situation of traffic safety in our country becomes more and more rigorous. Plenty of traffic accidents bring us not only enormous property loss, but also many social problems. How to apply high and new technique represented by information technique to handle traffic accident fairly, objectively, scientifically and fast is becoming urgent need of the bottom level of traffic management departments. In the aspects of procedure of traffic accident handling, investigation technique of traffic accident scene and reconstruction technique of traffic accident, traffic accident fast handling technique and system using high and new technique can solve the problem of traditional traffic safety procedure low efficiency, inaccuracy result, strong subjectivity. Therefore, it becomes research focus of problems of road traffic accident handling. To the phrase of traffic accident scene drawing,based on "Traffic Accident Fast Analysis System" developed by research group of traffic safety lab in Jilin University, this paper researches and designs traffic accident scene proportion diagram drawing system. Based on the system, this paper also research on traffic accident reconstruction data flow integration and track simulation amendment after vehicle collision, design structure frame of traffic accident scene diagram and traffic accident reconstruction as a whole system. In detail the contents of the paper includes:Based on procedure, means, technique of current traffic accident handling in our country, analyze traffic accident handling and investigation of traffic accident scene, summarize traffic accident scene diagram and its drawing problem. Firstly, start from structure and feature of traffic accident scene, narrate concept and main contents of investigation of traffic accident scene, analyze and compare features and functions of investigation of several kinds of traffic accident scene. Then based on corresponding criterion of traffic accident scene diagram drawing in our country, expound meanings of traffic accident scene diagram and kinds, definition, drawing contents of road traffic accident scene diagram, sum up features of traffic accident scene diagram, that is drawing according to proportion, position relations diagram and top projection platform. At last, combining lots of references, introduce development process of diagram drawing technique from pure artificial drawing to drawing model aid then to computer aid drawing, analyze all advantages and disadvantages of all kinds of computer aid drawing software, all these make a firm foundation stone for research on drawing problem of traffic accident scene diagram.Design of traffic accident scene diagram computer aid drawing system. Firstly, analyze drawing needs of traffic accident scene diagram from three aspects of criterion need, process of drawing and features of diagram elements. Then as to traffic accident scene diagram drawing system, define models , research and design relation and structure of models, design data structure of digital traffic accident scene diagram. At last, combined practical situation of traffic accident handling, research and design arithmetic and system of position problem, drawing guidance of road equipments and drawing problems of line track in traffic accident scene, give normal computer position arithmetic, two benchmark points method, two benchmark lines method, benchmark point and line method, design road equipments drawing guidance to complete drawing expediently, design cube spline curve interpolation method of drawing scene linear track.It analyzes the effect of the problems of traffic accident reconstruction and traffic accident scene diagram drawing on the base of the current development about it. And it expatiates the methods of all phases be used of traffic accident reconstruction systems. There are three flaws of this system linked practice using of traffic accident reconstruction system software which are: firstly, there is some degree of obstruct of communicate and rep...