论文部分内容阅读
高速公路隧道进出口环境的复杂性是隧道口事故率高于隧道其他路段的重要原因。选取30条典型公路隧道,利用照度仪、动态心电图机,对高速公路隧道处的照度变化及驾驶员心理变化进行了行车试验研究。根据大量试验数据,建立了隧道进出口绿化形式与隧道内外照度差、驾驶员心率变化之间的定量关系。利用照度系数与心率增长率来评价隧道照度变化及驾驶员心率变化。结果表明:随着隧道口绿化程度的加深,照度系数下降,隧道口绿化设置能有效地减少隧道内外的照度差;驾驶员心率增长率呈现下降趋势,驾驶员在隧道路段行驶的心理紧张程度不断缓解。
The complexity of the expressway tunnel import and export environment is an important reason why the accident rate at the tunnel entrance is higher than other sections of the tunnel. Thirty typical road tunnels were selected, and the illumination test and dynamic electrocardiogram (ECG) machine were used to test the driving illumination and the illumination changes of the freeway tunnels. According to a large number of experimental data, the quantitative relation between the greening mode of tunnel entrance and exit and the difference of illumination inside and outside the tunnel and the driver’s heart rate is established. The illuminance and the growth rate of heart rate were used to evaluate the changes of tunnel illuminance and driver heart rate. The results show that with the deepening of greening at the tunnel entrance, the illumination coefficient decreases. The greening at the tunnel entrance can effectively reduce the difference in illumination between the inside and outside of the tunnel. The growth rate of the driver’s heart rate shows a declining trend, and the driver’s stress level continues in the tunnel section ease.