Bus rapid transit operation analysis using the Downs-Thomson paradox

Seungjae Lee, Seungkyu Ryu, Shinhae Lee

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The purpose of the paper is to analyze effectiveness before and after implementation of the bus rapid transit operation. The paper includes a speed analysis based on the Downs-Thomson paradox, and a reliability analysis based on variance analysis of arrival time. According to the speed analysis, some road sections are now under phase 2 in the Downs-Thomson paradox, which is a state in which the bus speeds are greater than the auto speeds. In the future, it is predicted that autos and buses will reach an equilibrium speed which is in phase 3 of the multi-modal equilibrium theory. According to the reliability analysis of arrival time at each bus stop, in roads of median arterial bus lanes, the variance of arrival time is generally smaller than after the scheme implemented in 8 months later.

Original languageEnglish
Pages (from-to)205-215
Number of pages11
JournalJournal of Advanced Transportation
Issue number3
StatePublished - Jul 2010


  • Bus rapid transit operation
  • Downs-thomson paradox
  • Reliability analysis of arrival time


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