A Crash Injury Model Involving Autonomous Vehicle: Investigating of Crash and Disengagement Reports

Autor: Vinayak Dixit, Vincent Vu, Sai Chand, Kasun P. Wijayaratna, Amolika Sinha
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Sustainability
Volume 13
Issue 14
Sustainability, Vol 13, Iss 7938, p 7938 (2021)
ISSN: 2071-1050
DOI: 10.3390/su13147938
Popis: Autonomous vehicles (AVs) are being extensively tested on public roads in several states in the USA, such as California, Florida, Nevada, and Texas. AV utilization is expected to increase into the future, given rapid advancement and development in sensing and navigation technologies. This will eventually lead to a decline in human driving. AVs are generally believed to mitigate crash frequency, although the repercussion of AVs on crash severity is ambiguous. For the data-driven and transparent deployment of AVs in California, the California Department of Motor Vehicles (CA DMV) commissioned AV manufacturers to draft and publish reports on disengagements and crashes. This study performed a comprehensive assessment of CA DMV data from 2014 to 2019 from a safety standpoint, and some trends were discerned. The results show that decrement in automated disengagements does not necessarily imply an improvement in AV technology. Contributing factors to the crash severity of an AV are not clearly defined. To further understand crash severity in AVs, the features and issues with data are identified and discussed using different machine learning techniques. The CA DMV accident report data were utilized to develop a variety of crash AV severity models focusing on the injury for all crash typologies. Performance metrics were discussed, and the bagging classifier model exhibited the best performance among different candidate models. Additionally, the study identified potential issues with the CA DMV data reporting protocol, which is imperative to share with the research community. Recommendations are provided to enhance the existing reports and append new domains.
Databáze: OpenAIRE