An Equilibrium-Right-of-Way Based Capacity at Signalized Intersection

Traditionally, a signalized intersection capacity can't be discussed without putting signal timing into consideration. In general, signal timing includes determination of cycle length, number of phases, green interval, yellow time and all red. A result capacity varies with changing of parameters in signal timing. This is the traditional way of estimating capacity, named timing-based capacity calculation approach. However, at the planning stage, if planners or decision makers want to find out the future conditions of the network they have planned, they need to evaluate the performance in terms of v/c ratio because of undetermined capacity of intersection. A new concept of so-called "equilibrium-right-of-way based capacity" is introduced in this paper to overcome this difficulty. This capacity is purely based on the geometrics of an intersection (number of lane and lane allocation) rather than the signalization. The purpose for introducing this concept is to assume capacity of an intersection to be a sole value when the geometrics of the intersection are set. Uniqueness of capacity for interrupted flow facility should be the key of capacity studies. With this concept, capacity formula based upon the equilibrium-right-of-way is developed to estimate the capacity of signalized intersections. The result from this study is great significance for the development of capacity analysis, particularly for the interrupted flow facilities.

Language

  • English

Media Info

  • Media Type: Web
  • Features: Figures; References; Tables;
  • Pagination: pp 794-804
  • Monograph Title: CICTP 2012: Multimodal Transportation Systems—Convenient, Safe, Cost-Effective, Efficient

Subject/Index Terms

Filing Info

  • Accession Number: 01500609
  • Record Type: Publication
  • ISBN: 9780784412442
  • Files: TRIS, ASCE
  • Created Date: Nov 12 2013 2:35PM