Direct Mapping to the KSS

Within the European Union’s (GSR (EU) 2019/2144) definition, a Driver Drowsiness and Attention Warning (DDAW) system may provide a warning to the driver at a KSS (Karolinska Sleepiness Scale) level of 7 and must provide a warning at a KSS level of 8 or above. The regulation allows the use of alternative measurements to the subjective …

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