Volume 9 Issue 4
. 
Turn off MathJax
Article Contents
Article Navigation >  Journal of Traffic and Transportation Engineering  > 2009  >  9(4): 85-91
ZHANG Wei, WEI Lang, PENG Shao-yong. Safety evaluation of road alignment based on energy conservation law[J]. Journal of Traffic and Transportation Engineering, 2009, 9(4): 85-91. doi: 10.19818/j.cnki.1671-1637.2009.04.017
Citation: ZHANG Wei, WEI Lang, PENG Shao-yong. Safety evaluation of road alignment based on energy conservation law[J]. Journal of Traffic and Transportation Engineering, 2009, 9(4): 85-91. doi: 10.19818/j.cnki.1671-1637.2009.04.017
shu

Safety evaluation of road alignment based on energy conservation law

doi: 10.19818/j.cnki.1671-1637.2009.04.017
  • 1.

    School of Automobile, Chang'an University, Xi'an 710064, Shaanxi, China

  • 2.

    Yunnan Traffic Consultant Co., Ltd., Kunming 650031, Yunnan, China

More Information
  • Author Bio:

    ZHANG Wei(1973-), male, lecturer, doctoral student, +86-29-82334470, zhweijx@chd.edu.cn

    WEI Lang(1957-), male, professor, PhD, +86-29-82334471, qch-1@chd.edu.cn

  • Received Date: 2009-03-18
  • Publish Date: 2009-08-25
    Abstract
  • In order to estimate the influences of horizontal and vertical alignments on the safety of high classified highway in mountain area, based on energy conservation law, the influences of longitudinal gradient, gradient length and horizontal curve radius on the temperature rise of brake system were analyzed when vehicle ran downhill.Taking example for a downhill section in mountain area, the relationship between highway alignments and accident rates was validated.Analysis result indicates that when vehicle runs stably the critical gradient increases with the increases of transmission ratio and vehicle speed.Highway safety decreases with the increase of the product between average gradient and gradient length.Because the lesser curve radius can enhance the ability of engine brake, highway safety is improved.The larger mean square error of curve radius may increase the use frequency of vehicle brake, therefore, highway safety will be reduced.

     

    • FullText(HTML)
  • loading
    • References(7)
  • [1]
    HASSAN Y, EASA S M. Effect of vertical alignment ondriver perception of horizontal curves[J]. Journal of Trans-portation Engineering, 2003, 129(4): 399-407. doi: 10.1061/(ASCE)0733-947X(2003)129:4(399)
    [2]
    李铁洪, 吴华金. 长直线接小半径曲线公路交通事故成因及预防对策[J]. 中国公路学报, 2007, 20(1): 35-40. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL200701006.htm

    LI Tie-hong, WU Hua-jin. Causes and countermeasures ofhighway traffic accidents in long straight line combined withsharp curve[J]. China Journal of Highway and Transport, 2007, 20(1): 35-40. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL200701006.htm
    [3]
    黄进, 方守恩. 平曲线路段事故数目与线形元素的关系[J]. 公路, 2002(2): 76-79. https://www.cnki.com.cn/Article/CJFDTOTAL-GLGL200212026.htm

    HUANGJin, FANGShou-en. Relationship between accidentnumber and alignment elements of horizontal curve sections[J]. Highway, 2002(2): 76-79. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GLGL200212026.htm
    [4]
    余强, 陈荫三, 马建, 等. 客车发动机制动下坡能力[J]. 长安大学学报: 自然科学版, 2003, 23(2): 95-97. https://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200302027.htm

    YU Qiang, CHEN Yin-san, MA Jian, et al. Ability of busengine-braking at downhill[J]. Journal of Chang an University: Natural Science Edition, 2003, 23(2): 95-97. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200302027.htm
    [5]
    王秀平. 高速公路线形连续性分析与评价[J]. 公路, 2009(5): 245-248. https://www.cnki.com.cn/Article/CJFDTOTAL-GLGL200905048.htm

    WANG Xiu-ping. Analysis and evaluation of expresswayalignment consistency[J]. Highway, 2009(5): 245-248. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GLGL200905048.htm
    [6]
    PARK YJ, SACCOMANNO F F. Evaluating speed consistencybetween successive elements of a two-lane rural highway[J]. Transportation Research Part A, 2006, 40(5): 375-385.
    [7]
    余强. 汽车下坡持续制动性能研究[D]. 西安: 长安大学, 2000.

    YU Qiang. Study on downhill continuous braking perform-ance of automobile[D]. Xi an: Chang an University, 2000. (in Chinese)
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF
    XML

    Article Metrics

    Article views (575) PDF downloads(499) Cited by()
    Proportional views
    Related

    Copyright《Journal of Traffic and Transportation Engineering》编辑部陕ICP备05001904号-1

    Address ：Editorial Department of Journal of Traffic and Transportation Engineering, Chang 'an University, Middle Section of South Second Ring Road, Xi 'an, Shaanxi（710064） Tel：029-82334388 Email：jygc@chd.edu.cn

    All visit:Today's visit:

    Supported by: Beijing Renhe Information Technology Co. Ltd    

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return