城市道路人行横道处照明指标的确定

发布时间：2018-07-17 15:46

【摘要】：为了合理确定城市道路人行横道处的照明指标,保证驾驶人对过街行人的有效视认,进行了驾驶人夜间视认距离试验研究。分析了过街行人数量、状态(静止或运动)及衣服颜色对驾驶人夜间识别距离的影响,以及不同车速条件下驾驶人夜间视认距离随平均照度的变化规律,构建了驾驶人夜间视认距离-平均照度-车速关系模型。基于驾驶人夜间视认距离与反应制动距离间的安全行驶判别条件,提出了城市道路人行横道处平均照度的计算方法,并给出了实际案例。研究结果表明:当单个过街行人静止且衣服颜色较深时,驾驶人夜间对其进行视认最为困难;驾驶人夜间视认距离与平均照度呈正对数相关,与行驶速度呈负线性相关。
[Abstract]:In order to reasonably determine the lighting index at the crosswalk of urban roads and ensure the effective recognition of pedestrians across the street, an experimental study was carried out on the night recognition distance of the drivers. The influence of the number of pedestrians crossing the street, the state of pedestrian (static or moving) and the color of clothes on the distance of identification at night is analyzed, and the variation of the apparent distance of night with the average illuminance under different speed of speed is also analyzed. A model of night recognition distance-average illuminance-speed relationship was established. Based on the criterion of safe driving between night recognition distance and reaction braking distance, the calculation method of average illumination at crosswalk of urban road is presented, and a practical case is given. The results show that it is the most difficult for the driver to recognize the pedestrian at night when the individual pedestrian is still and the color of clothes is dark, and the distance of vision recognition is positively correlated with the logarithm of the average illumination, and it is negatively linear with the driving speed.
【作者单位】：哈尔滨工业大学交通科学与工程学院;吉林建筑大学交通科学与工程学院;重庆市规划设计研究院;东北林业大学交通学院;
【基金】：国家自然科学基金项目(51108137) 吉林省自然科学基金项目(201215176) 吉林省科技发展计划项目(20140204026SF)
【分类号】：U491.5

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