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Investigating the Daytime Visibility Requirements of Pavement Marking Considering the Influence of CCT and Illuminance of Natural Light

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Listed:
  • Jiangbi Hu

    (Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China)

  • Yanyan Guan

    (Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China)

  • Ronghua Wang

    (Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China)

  • Qingyun Cao

    (Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China)

  • Yunpeng Guo

    (Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China)

  • Qingxin Hu

    (Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China)

Abstract

Pavement marking in daylight with poor quality cannot provide a reference for drivers to specify their own position relative to nearby vehicles. Luminance and Correlated color temperature (CCT) of sunlight is of importance for daytime visibility of in-service pavement markings, which lacks detailed consideration. This paper aims to explore the daytime visibility requirements of in-service pavement markings considering the influence of natural light characteristics. Based on analyzing the mechanism and impact factors of daytime visibility of pavement markings, a subjective scale of pavement markings state in the drivers’ field of view was proposed and a short and bold line was recommended as the standard state. Thirty-six tested drivers were randomly selected to detect white and yellow markings of both 15 cm and 20 cm width under 2000 to 23,000 lx and 5500 to 8500 K for outdoor natural light environment. The luminance contrast of the pavement marking to the surrounding road surface ranged from 0 to 10. The result indicated that the natural light with 2000 to 3000 lx and 7500 to 8500 K is the most unfavorable light environment for drivers to recognize pavement markings during daytime. The detection distance is becoming longer with the increase of luminance contrast. The detection distance does not increase with the increase of luminance contrast when the luminance contrast of white markings is greater than 4 and that of yellow markings is greater than 3. The model was established expressing the relationship between luminance contrast and Q d contrast. The preview time 3.65 s was selected to calculate the minimum requirements of Q d at speeds of 60, 80, 100 km/h, respectively, for different types of markings. The results can provide scientific evidence for quality evaluation and maintenance management of pavement markings in service for daytime visibility.

Suggested Citation

  • Jiangbi Hu & Yanyan Guan & Ronghua Wang & Qingyun Cao & Yunpeng Guo & Qingxin Hu, 2022. "Investigating the Daytime Visibility Requirements of Pavement Marking Considering the Influence of CCT and Illuminance of Natural Light," IJERPH, MDPI, vol. 19(5), pages 1-17, March.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:5:p:3051-:d:764747
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    References listed on IDEAS

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    1. Darko Babić & Dario Babić & Mario Fiolić & Arno Eichberger & Zoltan Ferenc Magosi, 2021. "A Comparison of Lane Marking Detection Quality and View Range between Daytime and Night-Time Conditions by Machine Vision," Energies, MDPI, vol. 14(15), pages 1-15, August.
    2. Francisco Calvo-Poyo & Juan de Oña & Laura Garach Morcillo & José Navarro-Moreno, 2020. "Influence of Wider Longitudinal Road Markings on Vehicle Speeds in Two-Lane Rural Highways," Sustainability, MDPI, vol. 12(20), pages 1-11, October.
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