Psychological load of drivers in multi-lane interweaving areas of urban roads

doi:10.16265/j.cnki.issn1003-3033.2022.03.004

Abstract

Abstract:

In order to clarify characteristics of drivers' deceleration behaviors when driving in multi-lane interweaving areas of urban roads and its correlation with their psychological load, field driving tests were carried out. Drivers' electrocardiograph signals and vehicle operating parameters were collected, and the relationship between characteristics of their heart rate change and deceleration behaviors was analyzed by dividing them into two types according to different lane changing states. The results show that in the interweaving areas, psychological load of drivers in non-interference states is significantly greater than that in interference states, but the latter features more frequent psychological fluctuations. Female drivers are more likely to have a greater psychological load than male ones when entering interweaving sections. In both interference and non-interference states, drivers' heart rate growth rate demonstrates high partial correlation with the maximum deceleration, that is, the latter has a greater impact on the former.

Key words: mountainous city, multi-lane interweaving area, driver, mental load, deceleration behaviour, heart rate growth rate

ZHANG Xueyu, PAN Cunshu, LIN Wei, XU Jin. Psychological load of drivers in multi-lane interweaving areas of urban roads[J]. China Safety Science Journal, 2022, 32(3): 25-32.

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类型	非干扰	干扰
行驶次数A	44	37
超过限速40 km/h次数	20	8
超速占比/%	45.45	21.62

心率间隔/s	占比/%							最大值	最小值	均值
心率间隔/s	15	25	30	50	75	85	95	最大值	最小值	均值
非干扰状态	0.667	0.706	0.714	0.759	0.822	0.845	0.870	0.952	0.536	0.754
干扰状态	0.667	0.690	0.698	0.732	0.822	0.896	0.923	0.952	0.6	0.756

类别	心跳平均间隔		换道状态
类别	均值	标准偏差	均值	标准偏差
男性驾驶人	0.767	0.095	0.745	0.084
女性驾驶人	0.732	0.079	0.768	0.090
方差检验值F	0.037		0.231
显著性	显著		不显著

换道状态	控制变量	分析因素	相关性(双尾)	显著性	自由度
非干扰状态	最大减速距离	心率增长率与最大减速度	0.685	0.012	41
非干扰状态	最大减速度	心率增长率与最大减速距离	0.675	0.004	41
干扰状态	最大减速距离	心率增长率与最大减速度	0.649	0.000	35
干扰状态	最大减速度	心率增长率与最大减速距离	0.641	0.001	35

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