Research Article
Effect of High-Altitude Environment on Driving Safety: A Study on Drivers’ Mental Workload, Situation Awareness, and Driving Behaviour
Table 2
Results of internal consistency and statistics.
| | Dimensions (Cronbach’s alpha) | Items (notation) | High-altitude group | Low-altitude group | | Mean (std. D) | Mean (std. D) |
| | SA (0.856) | AD (0.869) | Instability of situation (s11) | 6.247 (2.102) | 5.589 (1.981) | | Complexity of situation (s12) | 6.169 (2.225) | 5.868 (1.947) | | Variability of situation (s13) | 6.225 (2.206) | 5.997 (1.903) | | AS (0.806) | Arousal of situation (s21) | 6.534 (2.071) | 7.114 (1.807) | | Division of attention (s22) | 6.301 (2.026) | 7.399 (1.797) | | Spare mental capacity (s23) | 6.284 (1.978) | 6.557 (1.698) | | Concentration of attention (s24) | 6.927 (1.768) | 6.328 (1.843 | | SU (0.771) | Information quantity (s31) | 5.596 (2.404) | 6.689 (1.658) | | Information quality (s32) | 6.239 (1.839) | 6.645 (1.742) | | Familiarity (s33) | 6.208 (1.996) | 6.786 (1.806) |
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