Visual Characteristics of Drivers at Different Sections of an Urban Underpass Tunnel Entrance: An Experimental Study

Fangtong Jiao, Zhigang Du, Haoran Zheng, Shoushuo Wang, Lei Han and Can Chen
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Fangtong Jiao: School of Transportation, Wuhan University of Technology, Wuhan 430063, China
Zhigang Du: School of Transportation, Wuhan University of Technology, Wuhan 430063, China
Haoran Zheng: School of Transportation, Wuhan University of Technology, Wuhan 430063, China
Shoushuo Wang: School of Transportation, Wuhan University of Technology, Wuhan 430063, China
Lei Han: School of Transportation, Wuhan University of Technology, Wuhan 430063, China
Can Chen: School of Transportation, Wuhan University of Technology, Wuhan 430063, China

Sustainability, 2021, vol. 13, issue 9, 1-12

Abstract: The increase in the number of traffic accidents due to the increasing number of urban underpass tunnels necessitate a better investigation of drivers’ visual characteristics when entering the tunnels. A total of 20 drivers were gathered to perform a real vehicle experiment in an urban underpass tunnel. The saccade angle, saccade frequency, and fixation time were selected as the research indexes. The urban underpass tunnel entrance was divided into five sections, namely the external straight line section, the upper half of the ramp, the lower half of the ramp, the shading shed section, and the entrance inner section. The results showed that the saccade angle and frequency of the ramp were significantly smaller than that of the external straight line and the tunnel interior, and the saccade range in front of the entrance was more concentrated. The changes in fixation time and the difference range of 15th-85th fixation time threshold in each section were analyzed. The fixation time of all sections was distributed within the range of 149.476 to 475.414 ms. The driver’s fixation was more and more concentrated when the sidewalls were higher and closer to the portal.

Keywords: urban underpass tunnel; saccade characteristics; fixation characteristics; traffic safety (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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