中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

Journal of Chongqing Jiaotong University(Natural Science) ›› 2019, Vol. 38 ›› Issue (03): 32-37.DOI: 10.3969/j.issn.1674-0696.2019.03.06

• Highway & Railway Engineering • Previous Articles     Next Articles

Reserach on the Operating Speed Transition Section Length at Ring off-ramp of B-type Trumpet Interchange

PAN Binghong1,2, NI Xu1, TANG Lijiao1, ZHAO Yaru1, YU Yingjie1   

  1. (1. School of Highway, Changan University, Xian 710064, Shaanxi, P. R. China; 2. Key Laboratory of Highway Engineering in Special Area of Ministry of Education, Changan University, Xian 710064, Shaanxi, P. R. China)
  • Received:2017-12-12 Revised:2018-06-04 Online:2019-03-20 Published:2019-03-20

B型喇叭式立交环圈出口匝道运行速度过渡段长度研究

潘兵宏1, 2, 倪旭1, 唐力焦1, 赵亚茹1, 余英杰1   

  1. (1. 长安大学 公路学院,陕西 西安 710064; 2. 长安大学 特殊地区公路工程教育部重点实验室,陕西 西安 710064)
  • 作者简介:潘兵宏(1974—),男,湖北黄陂人,副教授,博士,主要从事道路线路、互通式立体交叉方面的研究。E-mail: kc20@GL.chd.edu.cn。 通信作者:倪旭(1993—),男,四川乐至人,硕士研究生,主要从事互通式立体交叉方面的研究。E-mail: Nixu93@chd.edu.cn。
  • 基金资助:
    广东省交通运输厅科技项目(科技-2013-02-059)

Abstract: In order to determine the minimum lengths of the operating speed transition section which meet the safe driving demand of vehicles at ring off-ramp of B-type trumpet interchange, the calculation models of the operating speed transition section length were set up respectively to meet the requirements of ultra-high transition, speed-changing driving and moderate lateral acceleration change rate. Through UMRR Kepler chain radar tachometer, the operating speeds at the diverging gore nose of the ring off-ramp were measured under different main line design speeds, and with SPSS software, the operating speed representative values at the diverging gore nose were obtained.Based on the length calculation models of the operating speed transition section and the analysis of the typical parameters,the minimum lengths of the operating speed transition section were obtained to meet different requirements. The results show that vehicle variable speed driving demand is the main control factor for the length of the transition section at the ring off-ramp of B-type trumpet interchange; and based on the safe driving demand of the vehicles, the minimum recommended values where proposed, as well as the correction coefficients of longitudinal slopes.

Key words: traffic engineering, operating speed transition section, theoretical analysis, B -type trumpet interchange, speed-changing demand

摘要: 为确定车辆在B型喇叭式立交环圈出口匝道满足安全行驶需求的运行速度过渡段最小长度,分别建立了满足超高过渡需求、车辆变速 行驶需求、横向加速度变化率适中等要求下的运行速度过渡段长度计算模型。采用UMRR开普勒链式雷达测速仪,实测不同主线设计速度下环 圈出口分流鼻运行速度,结合SPSS软件分析,得到分流鼻运行速度。基于运行速度过渡段长度计算模型和典型参数的分析论证,得到满足不 同需求的运行速度过渡段最小长度。结果表明:车辆变速行驶需求是B型喇叭式立交环圈出口匝道运行速度过渡段长度的主要控制因素;并基 于满足车辆安全行驶需求,提出了运行速度过渡段长度最小建议值及纵坡修正系数。

关键词: 交通工程, 运行速度过渡段, 理论分析, B型喇叭式立交, 变速需求

CLC Number: