Characteristic indicators of driver stress response in emergency situations

doi:10.3969/j.issn.1674-8484.2025.01.004

Abstract

Abstract:

This study explored the variation patterns and mutual influences of the characteristic indicators of drivers' stress responses under different emergency situations. From two aspects, namely physiology and operational behavior, based on road traffic accident data, 12 types of typical road accident emergency scenarios were designed, with 35 drivers being invited to conduct driving simulator experiments. The Kruskal-Wallis non-parametric test method was used to screen out 6 indicators representing drivers' stress response characteristics. The variation patterns of these indicators were analyzed from three dimensions: the scene complexity and the driving speed, the degree of perception of emergency situations, and the scene factors. The results show that drivers are more vigilant, and emergency situations have a greater psychological impact when experiencing complex traffic environments and high driving speeds. Drivers are the most nervous, with the highest psychological load, and they respond more quickly and behave more intensely when an emergency occurs in urban roads with more complex traffic environments. When experiencing a side collision scenario where the degree of perception of the emergency situation is lower, the “heart rate growth rate” of drivers is 9.8%, which is the highest increase, indicating that they are most strongly affected psychologically. The indicator “perception-operation time” is the longest, and the indicators “time of occurrence of maximum braking acceleration” and “half-speed time” occur the earliest. There are also differences in some of the characteristic indicators of drivers' stress responses when experiencing scenarios with similar emergency situations, due to differences in specific factors within the scenarios.

Key words: traffic engineering, driving behavior, drivers' stress response, characteristic indicators, driving simulator, physiological signal

CLC Number:

U491.31

WU Qingfu, YUAN Manrong, HAO Shuaijie, LIU Jiawei, NIU Shifeng, LIU Jinfeng. Characteristic indicators of driver stress response in emergency situations[J]. Journal of Automotive Safety and Energy, 2025, 16(1): 43-49.

Figures/Tables 7

References 21

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序号	场景描述	复杂度
	城市道路
1	交叉口车辆闯红灯窜出	高
2	前方非机动车突然换道至自车前方	高
3	交叉口处行人突然从道路左侧闯红灯窜出	高
4	左后方车辆超车并换道至自车前方	高
5	机非混行路段前方非机动车紧急制动	高
6	道路右侧行人横穿马路	高
	普通公路
7	后方车辆超车并不打转向灯换道至自车前方	中
8	路边停放车辆前方突然有行人窜出	中
9	跟车行驶过程中前车突然制动	中
10	对向车辆突然越过道路中心线行驶至自车前方	中
	高速公路
11	前方车辆紧急制动	低
12	前方车辆不打转向灯突然换道至自车前方	低

序号	场景描述	复杂度
	城市道路
1	交叉口车辆闯红灯窜出	高
2	前方非机动车突然换道至自车前方	高
3	交叉口处行人突然从道路左侧闯红灯窜出	高
4	左后方车辆超车并换道至自车前方	高
5	机非混行路段前方非机动车紧急制动	高
6	道路右侧行人横穿马路	高
	普通公路
7	后方车辆超车并不打转向灯换道至自车前方	中
8	路边停放车辆前方突然有行人窜出	中
9	跟车行驶过程中前车突然制动	中
10	对向车辆突然越过道路中心线行驶至自车前方	中
	高速公路
11	前方车辆紧急制动	低
12	前方车辆不打转向灯突然换道至自车前方	低