Survey of doctor car operation condition and estimation of response rate for traffic fatalities in Japan

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  • ドクターカー運用実態調査による交通死亡事故に対する 対応可能率の推計

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Abstract

From 2018, D-Call Net which links AACN（Advanced Automatic Collision Notification）and doctor helicopters was started in Japan. However, D-Call Net is only for doctor helicopter base hospitals and no information is provided to hospitals with only doctor cars. Therefore, by extending the information service range of D-Call Net to hospitals with only doctor cars, it is possible to reduce the number of deaths and after-effects of road traffic accidents. The purpose of this study is to investigate the doctor car operation conditions and estimate the response rate for the number of traffic fatal accidents in order to confirm the lifesaving effect when D-Call Net was applied to a doctor car. First, we investigate the operation conditions using internet, hearing and literature surveys for medical institutions with doctor car or helicopter. Next, based on the survey results and ITARDA macro accident data, we estimated the doctor car response rate for traffic fatalities including the doctor helicopter effect. As a result, in 157 hospitals with doctor cars, the operating hours is unknown and their doctor car may be dormant. In addition, the main causes of dormant are operating costs and securing human resources such as doctors and drivers. On the other hand, we found that the current doctor car response rate for traffic fatal accidents is 5.7％ and it is lower than 22.9％ for doctor helicopter response rate. However, if the doctor car operation time is changed to 24 hours/365 days and all surveyed hospitals（338 facilities）have doctor car, the response rate improved to 45.1%. This indicates that the doctor car has high potential in response rate for traffic fatalities.

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