EFFECTS OF GUIDANCE FACILITIES ON DRIVING SAFETY IN ROAD TUNNELS DURING FOGGY WEATHER

АУТОР(И) / AUTHOR(S): Liankun Xu, Hehua Zhu, Ruoquan Fang, Yi Shen, Tao Liu, Shouzhong Feng

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DOI:  10.46793/ACUUS2025.4.3.36

САЖЕТАК / ABSTRACT:

The traffic accident rate increases significantly on foggy days. Typically, the light intensity within tunnels is significantly lower than outside, resulting in poorer visibility. The tunnel sidewalls become indistinct, making it challenging to discern the tunnel’s alignment. Although the self-luminous visual guidance facilities have been adopted in some tunnels, their effects and setting methods have not been studied in depth. Given this, thirty subjects were invited to conduct a virtual reality driving test to investigate the impact of the location and color of visual guidance facilities on driving safety and comfort. In this process, driving data and physiological data were collected, and subjective evaluation questionnaires were conducted. The results show that the self-luminous visual guidance facilities can make the alignment of tunnel clearer, and can improve the driver’s sense of speed in foggy weather. Moreover, the drivers’ nervousness is effectively alleviated. The guidance facilities located at the bottom of the sidewall are less disruptive than those located in the middle of the sidewall. Compared with the red guidance facilities, the yellow guidance facilities can relieve the driver’s tension more effectively.

КЉУЧНЕ РЕЧИ / KEYWORDS:

Road tunnel, Guidance facilities, Foggy weather, Driving safety

ПРОЈЕКАТ / ACKNOWLEDGEMENT:

The authors wish to acknowledge the sponsorship from the Research on Key Technologies for the Planning, Design, and Construction of the S7 Shanghai-Chongming West River-Crossing Tunnel (Y202445) and Research Fund of State Key Laboratory for Disaster Reduction in Civil Engineering (SLDRCE19-A-14). The support from the China Railway 14th Bureau Group Co., Ltd is highly appreciated.

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