What If the Network Was Designed by the Demand and How Much Does It Comply with the Supply?

Network design has been qualified as the most important step in transport planning. Since the transportation supply is usually designed to fulfill collective demand, its structure should trace the Origin and Destination (OD) flow as a reflection of the ultimate goal of travelling: moving between the origin and destination points. Traditionally, the supply’s spatial characteristics were examined from specific angles and the collective demand standpoint was generally a neglected angle. The paper examines the relevance of using OD flow, represented by the demand corridors, as a reference unit in supply design. Therefore, an approach was proposed and a set of four indicators that incorporate the demand corridor as a comparison unit were constructed and adapted. The indicators assess different facets of the supply structure with respect to the demand flow through quantifying the distortion, remoteness and supply shape. The applicability of this approach was tested through the identification of demand corridors from a set of disaggregated data from the Montreal 2013 OD survey. The result demonstrates the possibility to evaluate the supply based on its level of compliance to the demand flow and it illustrated the potential of demand corridors as relevant tools for transportation planning, and in the decision-making processes in which an indicator is needed to evaluate the actual or the planned supply. Finally, the approach proposed in this paper opens the door for future areas of research regarding the use of the demand corridor as a reference unit, the formulation of new indicators, and a global index to assess the quality of the supply structure.

  • Supplemental Notes:
    • This paper was sponsored by TRB committee ADB40 Standing Committee on Transportation Demand Forecasting.
  • Corporate Authors:

    Transportation Research Board

    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Authors:
    • Bahbouh, Kinan
    • Morency, Catherine
    • Berdier, Chantal
  • Conference:
  • Date: 2017


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 14p
  • Monograph Title: TRB 96th Annual Meeting Compendium of Papers

Subject/Index Terms

Filing Info

  • Accession Number: 01629798
  • Record Type: Publication
  • Report/Paper Numbers: 17-06443
  • Files: PRP, TRIS, TRB, ATRI
  • Created Date: Mar 23 2017 5:18PM