中文摘要：

为研究车速和环境照度变化对目标物识认时间的影响,选取27名驾驶人,在实际道路和真实照度环境中,以不同车速驾驶车辆对黑白目标物进行识认试验。应用配对t检验法对数据进行差异性显著检验,并分析黑白颜色目标物受车速和照度共同影响时的识认时间规律。结果表明：除照度为500 lx以上且速度为30,40和80 km/h外,驾驶人对黑白目标物的识认有显著性差异;黑色目标物整体的识认时间比白色目标物长,黑色识认性在低照度环境中相对较差;黑色目标物受照度影响主要的波峰为200和400 lx时,白色目标物受照度影响较大的波峰为200和500 lx时;环境照度为101~200 lx,行车速度为40 km/h时,驾驶人基础视力中识认能力下降最快。

英文摘要：

To research the effects of velocity and illumination on black or white object recognition time, 27 drivers were selected to carry out black and white targets recognition experiments. Significant differences of experimental data were tested by using the paired t-test method, and recognition time law of black and white targets affected by velocity and illumination was analyzed. The results show that there are signifi- cant differences between black targets and white targets recognition times when they are distinguished by driver with different velocity and illumination except 30,40 and 80 km/h at a good level of illumination of more than 500 lx, that recognition times of black targets are more than those of white targets, the recogniz- ability of black targets is relatively poor in low environment illumination, that main peak values of recogni- tion times appear in 200 lx and 400 lx of black target, and appear in 200 lx and 500 lx of white target, and that when the illumination is 101 - 200 lx and the velocity is 40 kin/h, the driver will lose fastest his recognition ability for basic sight.