Transit network design: The necessity of elastic demand consideration

Andisheh Ranjbari, Afshin Shariat-Mohaymany, S. M.Mahdi Amiripour

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations


Transit network design as the first and critical phase of public transportation planning is extremely sensitive to transit demand. An important characteristic of transit demand is elasticity or service-dependency, which means that any change in the service offered by the system is followed by a change in transit demand. Due to the complexity of transit network design problem (TNDP) researchers have usually assumed transit demand to be fixed rather than elastic; while ignoring this issue may result in inefficiency of system, dissatisfaction of users, and system failure, since the predicted amount of passengers would not use the transit system. This paper aims to demonstrate the necessity of elastic demand consideration in transit network design, and proposes a solution framework, which is composed of a preparation stage and an iterative procedure. A case study example is presented subsequently, to show the use of this solution method and further illustrates the necessity of considering this issue. Three cases of truly predicted demand (considering elastic demand), overestimated and underestimated demands (in the absence of elastic demand consideration) are defined, and the performance measures of these cases are compared to those in the base mode. The results show that elastic demand consideration leads to the optimal network, in which the system efficiently matches between supply and demand.

Original languageEnglish (US)
Title of host publicationAdvanced Transportation
Number of pages6
StatePublished - 2011
Event2011 International Conference on Civil Engineering and Transportation, ICCET 2011 - Jinan, China
Duration: Oct 14 2011Oct 16 2011

Publication series

NameApplied Mechanics and Materials
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482


Conference2011 International Conference on Civil Engineering and Transportation, ICCET 2011

All Science Journal Classification (ASJC) codes

  • General Engineering


Dive into the research topics of 'Transit network design: The necessity of elastic demand consideration'. Together they form a unique fingerprint.

Cite this