Case Analysis And The Speed Technical Evaluation For Vehicles Research Based On Electronic Data

In recent years, the road transportation industry in our country developed rapidly. But the traffic safety problem is still serious, and the number of traffic accidents is still high. With the perfection of the legal system and the enhancement of the national legal consciousness in our country, the number of case about Traffic Accident Appraisal is increasing. The identification of vehicle speed is a significant part in the identification of road traffic accidents. With the development and application of electronic technology, vehicle speed evaluation based on the electronic data has become a possibility. And the research about this has important practical significance.First of all, based on the analysis methods of vehicle speed evaluation, this paper discussed the possibilities about the vehicle speed evaluation based on the electronic data.Furthermore, according to the various forms and characteristics of the existing electronic data,the vehicle electronic data generally divided into two categories: external and internal. For the external electronic data, this paper mainly analyzed the operational principle of the traveling data recorder and the data extraction methods, studied and summarized the speed evaluation methods of such electronic data through actual cases, compared and verified the speed evaluation results under the traces or video identification method. For the internal electronic data, this paper divided the extracted locations into three categories: the electronic control unit, the event data recorders and the on-board diagnostic system. Finally, in order to make the vehicle speed electronic data further normalized and standardized, this paper studied it is forensics and applications, and gives the corresponding suggestions.The evaluation methods of road accidents based on the electronic data can be faster and more effective, and it provides a new way for the work of speed evaluation. This paper also pointed out that the relevant departments should introduce the corresponding standards as soon as possible, and provide the legal basis for the actual work of speed evaluation.