Comfort and Safety Evaluation of Tunnel Portal Landscape Design Based on Eye Movement Index
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School of Highway, Chang’an University, Xi’an 710064, China

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U453.1

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    Abstract:

    Based on the portal landscape design scheme of Ban-lun Tunnel in Yunnan Province, we selected four primary influencing factors including portal linetype, portal color, portal greening, and portal texture. An orthogonal experimental design was adopted, and nine model schemes were established. A driving simulation test was conducted using a driving simulation test system and eye tracker, meanwhile, the pupil diameter and the sight deviation time were selected as evaluation indexes. The results show that in terms of portal landscape driving comfort, the order of importance of the four factors is as follows: portal texture, portal greening, portal color, and portal linetype. The distractions of drivers appear in the fifth model (green end wall, mural, city wall type, and natural greening), and the ninth model (grey end wall, mural, arc line type, elaborate greening), leading to the potential safety hazard of driving. Based on the experimental results, some optimization suggestions were put forward for the tunnel portal landscape design from the aesthetic aspect.

    Table 1
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    Fig.1 Portal landscape design of Ban-lun Tunnel (unit: cm)
    Fig.2 Renderings of nine model schemes
    Fig.3 Driving simulation system
    Fig.4 Eye tracker
    Fig.5 Familiarity training of participants
    Fig.6 Calibration process of participants
    Fig.7 Test process
    Fig.8 Curve of pupil diameter for several participants
    Fig.9 Analysis of pupil diameter range at three levels of each factor
    Fig.10 Analytical process of data from eye tracker
    Fig.11 Summary of line deviation of participants’ sight for nine models(unit: s)
    Fig.12 Line deviation of participants’ sight for scheme 5
    Fig.13 Line deviation of participants’sight for scheme 9
    Fig.14 Ban-lun Tunnel
    Table 4
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YE Fei, YING Kaichen, SU Enjie, WEI Yanchun, LIANG Xiaoming. Comfort and Safety Evaluation of Tunnel Portal Landscape Design Based on Eye Movement Index[J].同济大学学报(自然科学版),2021,49(2):218~226

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History
  • Received:June 30,2020
  • Online: March 18,2021
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