Estimation of the Safety Benefits of AEBS Based on an Analysis of the KIDAS Database
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Using the Korean In-Depth Accident Study (KIDAS) database, this study estimated the safety benefits of autonomous emergency braking systems (AEBS). We analyze crash severity using an ordered probit model to identify contributing factors based on the KIDAS database as well as the statistical relationship between collision speed and crush extent. We estimate the change in injury severity after AEBS installation using the results of both analyses. From the results, we identify that adolescence, fastened seatbelts, and crush extent are statistically significantly correlated with the dependent variable, injury severity score. Analysis of the relationship between crush extent and collision speed reveals that the explanatory power of the exponential model is higher than that of the linear model, while evaluating the effect of AEBS using the two relationships shows that it had a maximum injury reduction effect of 25% when the injuries were not minor. Results showing the effectiveness of installing an AEBS are presented, and a method to evaluate the potential safety benefits obtained from the analyses conducted in this study is proposed. The methods used in this study could be useful in promoting the rapid propagation of in-vehicle safety measures and developing relevant policies.
Keywordsautonomous emergency braking system (AEBS) crush extent effect analysis of safety device injury severity Korean In-Depth Accident Study database (KIDAS) ordered probit model
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This research was supported by a grant from the Transportation & Logistics Research Program funded by the Ministry of Land, Infrastructure, and Transport Affairs of the Korean government (Project No.: 16TLRP-B101406-02).
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