[1] Cong Ling, Huang Xiaoming,. Influence of pavement frictional properties on braking distance [J]. Journal of Southeast University (English Edition), 2011, 27 (2): 210-212. [doi:10.3969/j.issn.1003-7985.2011.02.020]
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Influence of pavement frictional properties on braking distance(
)
路面摩擦特性对车辆制动距离的影响
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 27
- Issue:
- 2011 2
- Page:
- 210-212
- Research Field:
- Traffic and Transportation Engineering
- Publishing date:
- 2011-06-30
Info
- Title:
- Influence of pavement frictional properties on braking distance
- 路面摩擦特性对车辆制动距离的影响
- Author(s):
- Cong Ling, Huang Xiaoming
- School of Transportation, Southeast University, Nanjing 210096, China
- Keywords:
- pavement frictional properties; braking distance; operating conditions; finite element simulation
- PACS:
- U418
- DOI:
- 10.3969/j.issn.1003-7985.2011.02.020
- Abstract:
- In order to study the relationship between pavement friction management criteria and braking distance requirements of road geometric design, an approach for determining the braking distance considering pavement frictional properties is proposed. A finite element model(FEM)of a rolling tire under steady state is established based on theoretical hydrodynamics and mechanics principles, in which factors, including tire type, water film thickness, pavement surface properties, and vehicle speed, are considered. With the FEM, braking distances under different operating conditions are calculated. Furthermore, the allowable water film thickness is determined by comparing braking distances calculated with friction management criteria and that required by road geometric design. The results show that the braking distance is affected by the above operating conditions. As a result, it is necessary to maintain consistency between geometric design braking distance requirements and pavement friction management to achieve safe road operations.
- 为了深入研究路面养护中抗滑界限与公路设计中制动距离限值间的关系, 提出了考虑路面摩擦特性时确定制动距离的方法.基于理论流体动力学和基本力学原理, 考虑轮胎类型、水膜厚度、路表特性、行车速度等因素, 建立了稳态滚动轮胎的有限元模型;运用该模型计算了不同运行条件下的制动距离;通过比较分别满足养护和设计界限的制动距离, 确定了路表允许的水膜厚度.研究结果表明:行车速度、水膜厚度等运行条件对路面抗滑性能有显著影响, 进而影响车辆的制动距离.因此, 在路面抗滑养护中应确保安全的运行条件, 以与公路设计中制动距离的要求相一致.
References:
[1] Ministry of Communications of the People’s Republic of China. JTJD20—2006 Design specification for highway alignment [S]. Beijing: China Communications Press, 2006.(in Chinese)
[2] Hall J W, Smith K L, Titus-Glover L, et al. Guide for pavement friction [R]. Washington DC: NCHRP, 2009.
[3] Kowalski K J, McDaniel R S, Shah A, et al. Long-term monitoring of noise and frictional properties of three pavements [J]. Transportation Research Board, 2009(2127):12-19.
[4] Ong G P, Fwa T F. Prediction of wet-pavement skid resistance and hydroplaning potential [J]. Transportation Research Board, 2007(2005):160-171.
[5] Halim A E, Tighe S, Klement T. Development of simplified approach for assessing level of safety of highway network associated with pavement friction [J].Transportation Research Board, 2009(2946):1-15.
[6] Ministry of Communications of the People’s Republic of China. JTG073.2—2001 Technical specifications for maintenance of highway asphalt pavement [S]. Beijing: China Communications Press, 2001.(in Chinese)
[7] Ministry of Communications of the People’s Republic of China. JTGE60—2008 Field test methods of subgrade and pavement for highway engineering [S]. Beijing: China Communications Press, 2008.(in Chinese)
Memo
- Memo:
-
Biographies: Cong Ling(1984—), female, graduate; Huang Xiaoming(corresponding author), male, doctor, professor, huangxm@seu.edu.cn.
Foundation item: The Research and Innovation Foundation for Graduate Students in Jiangsu Province(No.CX10B_070Z).
Citation: Cong Ling, Huang Xiaoming.Influence of pavement frictional properties on braking distance[J].Journal of Southeast University(English Edition), 2011, 27(2):210-212.[doi:10.3969/j.issn.1003-7985.2011.02.020]