GA/T 50-2019 in English

VALID

Photographing for road traffic accident scenes

Issued on:2019-09-20
Implemented on:2020-01-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $250.00
$243.00

Standard No:	GA/T 50-2019
Document status:	VALID
Title in English:	Photographing for road traffic accident scenes
Title in Chinese:	道路交通事故现场勘查照相
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2019-09-20
Implemented on:	2020-01-01
Superseding:	GA 50-2014 Photographing for road traffic accident scene
ICS Classification:	03.220.20-Road transport
Chinese Classification:	R81-Traffic accident management
Professional Classification:	GA-Security
Related Keywords:	road traffic accident scenes introduction core changes new photography specifications photography methods new requirements detailed photography tire trace photography case new version technical equipment
Related Topics:	ACCIDENT prospecting test site accident Site blockade traffic accident traffic accident road traffic standards zero accident Accident Accident scene monitoring on-site screening the traffic road traffic accident Beijiao University experimental accident ga/t1012-2019 ga/t49-2019

本标准规定了道路交通事故现场勘查照相的一般要求、照相的内容和要求以及交通事故照片卷的制作。
本标准适用于交通警察或公安机关交通管理部门组织的有关专业技术人员对道路交通事故痕迹、物证的勘查照相。

Introduction

Core changes in the standard revision

Revision dimensions	2014 version	XXXX new version
Technical equipment	The use of drones is not specified	New equipment requirements for Multi-rotor unmanned aerial vehicles (4.3)
Photography content	6 types of photography methods	New requirements for real-life picture production (4.5) and time information recording (4.11)
Trace processing	Covering processing is not specified	New photography specifications when the traces are covered (4.9)

Seven types of photography technical specifications

1. Innovative application of azimuth photography

Requirements for drone aerial photography (5.1.2.4): The flight altitude must cover the entire length of the accident section, and the central area should occupy more than 60% of the screen. It is recommended to use equipment that complies with the GA/T 1382 standard, such as DJI M300 RTK.

2. Key points for detailed photography

Tire trace photography case: For side slip marks, a 50cm color scale should be used, and 30° side light should be used to shoot, ensuring that the mutation point of the trace is in the same frame as the scale (5.5.2.1).

Guidelines for Shooting in Special Environments

Nighttime in snow and fog: turn off auxiliary light source, control ISO below 400, and exposure time ≥ 2 seconds (Appendix B.5)
Highly reflective objects: use a polarizing filter to eliminate reflections from car paint, and keep the light source angle at 45° (Appendix B.6)

Specifications for Photo Roll Production

The new version cancels the requirement for guide lines (6.1.2), and digital photos must be saved in the original RAW format and burned to a CD for archiving (6.6.2). It is recommended to use a professional printer such as Epson SC-P908 for output.

More samples: GB 18306-2015 NB/T 47013.2-2015 DL/T 368-2010

Sample only — not a preview of GA/T 50-2019