Journal of South China University of Technology (Natural Science Edition) ›› 2010, Vol. 38 ›› Issue (3): 47-52.doi: 10.3969/j.issn.1000-565X.2010.03.009

• Traffic & Transportation Engineering • Previous Articles     Next Articles

Control of On-Ramp of Annular Expressways Based on Priority Entrance

Tian Sheng1  Xu Lun-hui1  Liao Ran-kun1  Yang Ya-zao2   

  1. 1.School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, Guangdong, 2. School of Business Administration, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2009-10-20 Revised:2009-12-03 Online:2010-03-25 Published:2010-03-25
  • Contact: 田晟（1969-），男，讲师，博士生，主要从事交通运输规划与管理研究．.edu.en E-mail:shitianl@scut.edu.en
  • About author:田晟（1969-），男，讲师，博士生，主要从事交通运输规划与管理研究．
  • Supported by:

    国家自然科学基金资助项目（60664001）

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Abstract:

In order to overcome the traffic congestion due to the traffic demand for urban expressways that exceeds the traffic supply, the benefit of priority entrance is analyzed by fully considering the requirements of vehicles for priority entrance on the on-ramp of urban expressways, and an on-ramp control strategy based on the priority en- trance is proposed, which permits vehicles with top priority to drive into urban expressways in a peak traffic condi- tion. Moreover, an algorithm of priority entrance for the annular road sections of urban expressways is presented, and the corresponding numerical example is conducted. The results indicate that the proposed strategy is applicable to on-ramp control and helps to raise the use efficiency of roads because it can prevent vehicles with lower priority from entering urban expressways.

Key words: urban expressway, priority entrance, annular road section, on-ramp