Research on the Traffic State Threshold of Saturated Flow in Eight-Lane Expressway Merging Area

This paper aims to analyze the threshold of saturated flow of each lane in an eight-lane expressway merging area under different situations. The concept of saturated is defined firstly and the three-dimensional fundamental diagram which determines the flow, speed, and density thresholds for each lane in the merging area is plotted. Meanwhile, a cellular automaton model is established and validated considering the actual measured data. Results show that the cellular automaton model is effective and the impact of length of acceleration lane, randomization probability, percentage of large vehicles, and number of lanes would change the saturated flow threshold of each lane respectively.


  • English

Media Info

  • Media Type: Web
  • Monograph Title: CICTP 2019: Transportation in China—Connecting the World

Subject/Index Terms

Filing Info

  • Accession Number: 01712937
  • Record Type: Publication
  • ISBN: 9780784482292
  • Files: TRIS, ASCE
  • Created Date: Jul 2 2019 3:07PM