GA/T 1999.2-2022Methods for speed identification of vehicles involved in road traffic accidents - Part 2: Method based on vehicle event data recorder system (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting:

This document is the second part of GA/T 1999 "Vehicle Speed Appraisal Method for Road Traffic Accidents": GA/T 1999 has been issued with Lower part:

--- Part 1: Based on the vehicle driving recorder;

--- Part 2: Based on the vehicle event data recording system:

Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:

Introduction

Road traffic accident inspection and identification is an important link in the accident handling procedure, and vehicle speed identification is an important technical method among them:

The analysis of the cause of the accident and the determination of the responsibility for the accident have an important supporting role in evidence: Vehicle speed identification can be based on dynamics theory, empirical formula, model Methods such as quasi-test, simulation reproduction, vehicle driving recorder, vehicle event data recording system, and video images are suitable for vehicle speed identification:

Select the appropriate method according to the accident form and inspection material conditions, and cross-validation should be carried out if the application requirements of multiple identification methods are met: GA/T 1999 it was formulated to guide the selection of vehicle speed identification methods, standardize the identification requirements, identification steps and methods for vehicle speed identification in road traffic accidents:

Appraisal opinion:

GB/T 33195-2016 "Vehicle Speed Appraisal in Road Traffic Accidents" is the universal and basic Standard, GA/T 1999 "Vehicle Speed Appraisal Method for Road Traffic Accidents" is a supplement and detail to the appraisal method in GB/T 33195-2016 GA/T 1999 is proposed to be composed of three parts:

--- Part 1: Based on the vehicle tachograph: Aiming at ensuring the speed identification of vehicles in road traffic accidents based on vehicle travel recorders the scientificity and accuracy of the determined results:

--- Part 2: Based on the vehicle event data recording system: Aiming at guaranteeing the safety of road traffic accidents based on automotive event data recording systems Therefore, the scientificity and accuracy of the vehicle speed identification results:

--- Part 3: Based on video images: A science aimed at guaranteeing the results of vehicle speed identification in road traffic accidents based on video images sex and accuracy:

Appraisal Method of Vehicle Speed in Road Traffic Accidents Part 2: Recording system based on vehicle event data

1 Scope

This document specifies the terms and definitions, identification requirements, Appraisal steps and methods, appraisal letter requirements:

This document is applicable to the identification of vehicle speed in road traffic accidents based on the vehicle event data recording system, based on the vehicle event data record Other identifications of the system refer to the implementation:

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references for documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document:

GB/T 33195-2016 Appraisal of vehicle speed in road traffic accidents GA/T 1998-2022 Technical Specifications for Vehicle Electronic Data Extraction

3 Terms and Definitions

The following terms and definitions apply to this document:

collision event impactevent A collision or other physical event that reaches or exceeds a trigger threshold, or any other event that causes an irreversible restraint system to deploy, is preceded by whoever occurs shall prevail:

[Source: GB 39732-2020, 3:1] 3.2 Consisting of one or more vehicle-mounted electronic modules, it has the functions of monitoring, collecting and recording the vehicle and vehicle before, during and after the collision event A device or system for the data function of an occupant protection system:

[Source: GB 39732-2020, 3:2] 3.3 EDR controllerEDRcontroller an on-board electronic module for monitoring, collecting and recording time-series data during collision events:

[Source: GB 39732-2020, 3:3] 3.4 Lock event lockedevent Events recorded by EDR that meet the locking conditions and are not covered by subsequent events:

[Source: GB 39732-2020,3:10]