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基于反应时间的光源色温对隧道入口段交通安全的影响

Keywords: 隧道工程,隧道照明,反应时间,光源色温,周边视觉

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Abstract:

隧道入口段照明是保障隧道交通安全采取的措施.驾驶人员察觉目标的反应时间以及察觉相对运动的周边视觉是衡量隧道照明效果的重要指标.基于反应时间试验,将5种色温的LED光源与传统隧道照明光源高压钠灯(HPS)、金卤灯(MH)相比较,分析了光源色温对反应时间和周边视觉的综合影响.研究结果表明在公路隧道入口段照明水平下,高色温、光谱分布偏向蓝绿光的LED光源照明产生的反应时间最短,周边视觉功效最高.LED光源光效高,色温又可以人为调节,将其应用于隧道入口段的照明,可以在满足交通安全的前提下实现照明节能的要求.

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