|Table of Contents|

Influence of high brightness pavement layer on driving safety in middle section of tunnel(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2023年1期
Page:
92-100
Research Field:
隧道工程
Publishing date:

Info

Title:
Influence of high brightness pavement layer on driving safety in middle section of tunnel
Author(s):
FENG Xue-mao1; 2;  QIN Zhong2;  WU Jian-min3;  ZHANG Heng-cong3;  ZUO Shan3;  HE Hai-tao3
(1. School of Civil Engineering, Central South University, Changsha 410083, Hunan, China; 2. Guangxi New Development Transportation Group Co., Nanning 530000, Guangxi, China; 3. School of Highway, Chang’an University, Xi’an 710064, Shaanxi, China)
Keywords:
tunnel engineering;  driving safety;  high brightness pavement layer;  eye movement characteristic;  titanium dioxide;  reflective effect
PACS:
U454
DOI:
10.19721/j.cnki.1671-8879.2023.01.010
Abstract:
To study the influence of high-brightness pavement layer on driving safety in the middle section of tunnel, a transverse contrast test was designed based on the reflective effect of road surface and drivers’ visual characteristics, the optical of the three kinds of high-brightness pavement layers were measured with different optical instruments, and the brightness performance of the three kinds of high-brightness pavement layers were studied, three kinds of high brightness pavement layer tunnel simulation driving videos were made through lighting calculation software and 3D modeling software, the eye-movement data of drivers when they drive in different paving layer tunnels were collected, through using the driving simulator system and adopting the eye movement experiment to conduct simulated driving in different paving layer tunnels. The eye movement characteristics of drivers when they drive in the middle section of high-brightness pavement layer tunnels were studied, through taking the duration of driver’s gaze on obstacles and the driver’s pupil diameter as the physiological and psychological indicators under a relatively safe distance. The driver’s subjective feelings when they take a tunnel drive at different paving layers were obtained through the questionnaire survey of driving experience, and the driving safety of three high-brightness pavement layers on the middle section of the tunnel was comprehensively evaluated. The results show that the high-brightness pavement layer has a good reflective effect, the addition of titanium dioxide has a better effect on the high brightness performance of high-brightness pavement layer, high-brightness pavement layer A with 70% titanium dioxide content(mass fraction, the same below)has the best reflective effect.The driving safety in the middle part of the tunnel is positively correlated with the reflective effect of paving layer. The using of high-brightness pavement layer with better reflective effect can help drivers find obstacles earlier and identify obstacles more easily in their driving, which is conducive to improving the driving safety of the middle section of the tunnel. However,the visual comfort of driving in the middle part of the tunnel is negatively correlated with the reflective effect of paving layer, the road surface in the tunnel reflects the light strongly after the use of high-brightness pavement layer,which has some influence on the visual comfort of drivers.11 tabs, 4 figs, 21 refs.

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Last Update: 2023-01-30