Good nighttime road lighting is critical for driving safety. To improve the quality of nighttime road lighting, this study used the triangulation method by fusing "EEG evaluation + subjective evaluation + behavioral evaluation" to qualitatively and quantitatively investigate the response characteristics of different correlated color temperature (CCT) (3500K, 4500K, 5500K, 6500K) on drivers' non-visual indicators (mood, alertness, fatigue and reaction time) under specific driving conditions (monotonous driving; waiting for red light and traffic jam; car-following task). The results showed that the CCT and Task interaction effect is mainly related to individual alertness and reaction time. Individual subjective emotional experience, subjective visual comfort and psychological security are more responsive to changes in CCT than individual mental fatigue and visual fatigue. The subjective and objective evaluation results demonstrated that the EEG evaluation indices used in this study could objectively reflect the response characteristics of various non-visual indicators. The findings also revealed that moderate CCT (4500K) appears to be the most beneficial to drivers in maintaining an ideal state of mind and body during nighttime driving, which is manifested as: good mood experience; it helps drivers maintain a relatively stable level of alterness and to respond quickly to external stimuli; both mental and visual fatigue were relatively low. This study extends nighttime road lighting design research from the perspective of non-visual effects by using comprehensive neuroergonomic evaluation methods, and it provides a theoretical and empirical basis for the future development of a humanized urban road lighting design evaluation system.

翻译：良好的夜间道路照明对驾驶安全至关重要。为提升夜间道路照明质量，本研究采用三角互证法，融合“脑电图评估+主观评价+行为评估”，定性与定量地探究特定驾驶条件（单调驾驶、红绿灯等待与交通拥堵、跟车任务）下，不同相关色温（3500K、4500K、5500K、6500K）对驾驶员非视觉指标（情绪、警觉性、疲劳及反应时间）的反应特征。结果表明，色温与任务类型的交互效应主要与个体警觉性和反应时间相关。与个体脑力疲劳和视觉疲劳相比，个体主观情绪体验、主观视觉舒适度及心理安全感对色温变化更为敏感。主客观评估结果显示，本研究采用的脑电图评估指标能够客观反映各项非视觉指标的反应特征。研究还发现，中等色温（4500K）最有助于驾驶员在夜间驾驶中维持理想身心状态，具体表现为：良好的情绪体验；帮助驾驶员保持相对稳定的警觉水平，并能快速应对外界刺激；脑力与视觉疲劳均相对较低。本研究通过采用综合性神经工效学评估方法，从非视觉效应视角拓展了夜间道路照明设计研究，为未来构建人性化城市道路照明设计评估体系提供了理论与实证依据。