Access and the choice of transit technology

An urban transit system can be made more cost-efficient by improving the access to it. Efforts in this vein often entail the provision of greater mobility, as when high-speed feeder buses are used to carry commuters to and from trunk-line stations. Other efforts have focused on the creation of more favorable land-use patterns, as occurs when households within a Transit-Oriented Development (TOD) are tightly clustered around trunk stations. The efficacy of these mobility and land-use solutions are separately examined in the present work. To this end, continuum approximation models are used to design idealized transit systems that minimize the generalized costs to both the users and the operators of those systems. The assessments unveil how the choice of transit technology for the trunk-line portion of a transit network can be influenced by its access mode. If transit is accessed solely (and slowly) on foot, then the optimal spacings between lines, and between the stations along those lines, are small. This can place capital-intensive rail systems at a competitive disadvantage with transit systems that feature buses instead. When access speeds increase, the optimal spacings between lines and stations expand. Hence, if accessed by fast-moving feeder buses, Metro-rail or bus-rapid transit can become preferred trunk-line options. By comparison, the influence of altered land use patterns brought by TODs tends to be less dramatic. The authors find that clustering households around Metro-rail stations justifies larger spacings between the stations. Yet, this produces only modest reductions in generalized costs because the larger spacings penalize transit users who reside outside of the TODs.

• Record URL:
  • https://doi.org/10.1016/j.tra.2013.09.006
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S0965856413001705
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09658564
• Supplemental Notes:
  • Abstract reprinted with permission of Elsevier.
• Authors:
  • Sivakumaran, Karthik
  • Li, Yuwei
  • Cassidy, Michael
  • Madanat, Samer
• Publication Date: 2014-1

Language

• English

Media Info

• Media Type: Print
• Features: Appendices; Figures; References; Tables;
• Pagination: pp 204-221
• Serial:
  • Transportation Research Part A: Policy and Practice
  • Volume: 59
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0965-8564
  • Serial URL: http://www.sciencedirect.com/science/journal/09658564

Subject/Index Terms

• TRT Terms: Accessibility; Feeder buses; Land use planning; Primary highways; Transit oriented development; Urban transit
• Subject Areas: Planning and Forecasting; Public Transportation; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01523101
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 24 2014 11:58AM