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GUO Feng-xiang, XIONG Jian, QIN Ya-qin, WAN Hua-sen. Simulation evaluation of safeguard measure for traffic safety on montane highway[J]. Journal of Traffic and Transportation Engineering, 2011, 11(5): 120-126. doi: 10.19818/j.cnki.1671-1637.2011.05.019
Citation: GUO Feng-xiang, XIONG Jian, QIN Ya-qin, WAN Hua-sen. Simulation evaluation of safeguard measure for traffic safety on montane highway[J]. Journal of Traffic and Transportation Engineering, 2011, 11(5): 120-126. doi: 10.19818/j.cnki.1671-1637.2011.05.019
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Simulation evaluation of safeguard measure for traffic safety on montane highway

doi: 10.19818/j.cnki.1671-1637.2011.05.019

  • School of Transportation Engineering, Kunming University of Science and Technology, Kunming 650224, Yunnan, China

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  • Author Bio:

    GUO Feng-xiang (1979-), female, lecturer, doctoral student, +86-871-3802298, gfxebox@yahoo.com.cn

    XIONG Jian (1959-), male, professor, PhD, +86-871-3802259, xjebox@163.com

  • Received Date: 2011-05-09
  • Publish Date: 2011-10-25
    Abstract
  • The tunnel group, climbing section and mixed traffic section of Yunnan Xiaomo Highway from K109+600 to K122+024 were selected as experiment sample sections, and their static and dynamic 3D models were established by using virtual scene generation system.Central isolation installations such as lodging warning column, visual marking, conventional marking were placed in tunnel, and additional lane was set at climbing section and mixed section.The average speeds and lateral positions of vehicles at three sample sections were comparatively analyzed, and the effects of three safety safeguard measures were evaluated.Analysis result indicates that in tunnel, the average speed standard deviations for three central isolation installations are 9.74, 10.01, 10.40 km·h-1 respectivehy, and the average lateral position standard deviations are 0.54, 0.70, 0.69 m respectivehy.It can be seen that by setting lodging warning column, the speed and lateral position of vehicle can keep well.When traffic volume is less than 1 000 pcu·h-1 at climbing section, it is beneficial to improve vehicle speed on main line by setting additional lane.When non-motor vehicle volumes are 500 and 800 pcu·h-1 at mixed traffic section, there are higher speed, smaller speed deviation and bigger lateral position after setting additional lane.Setting additional lane is beneficial to improve and maintain vehicle speed, and reduce conflicts to opposed vehicle.

     

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