A SENSITIVITY-BASED SOLUTION ALGORITHM FOR THE NETWORK MODEL OF URBAN TAXI SERVICES

The objective of this study is to develop an efficient solution algorithm for a network model for urban taxi services with elastic demand in a congested road network. This model can serve as a tool to evaluate the level of taxi service in terms of taxi utilization, waiting times of taxis and passengers, taxi demands, cost and revenue generation of taxis, with respect to the regulatory measures such as taxi fleet and fare control. The study proposes a new sensitivity-based solution algorithm in which the computation of the Jacobian matrix in a set of linear and nonlinear equations (SLNE) will take into account the characteristics of the combined network equilibrium model (CNEM). Sensitivity analysis is used to calculate the derivatives of the variables and constraint multipliers in the CNEM with respect to the perturbation parameters in the SLNE. Described is the formulation of the taxi model with elastic demand in a congested road network. The new sensitivity-based solution algorithm is proposed and a wide range of computational experiments are conducted to illustrate the computational efficiency of the proposed sensitivity-based algorithm over the original newtonian one.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0080439268
• Corporate Authors:

  Elsevier

  The Boulevard, Langford Lane
  Kidlington, Oxford  United Kingdom  OX5 1GB
• Authors:
  • Wong, K I
  • Wong, S C
  • Yang, Huajie
  • Tong, C O
• Conference:
  • Transportation and Traffic Theory in the 21st Century. Proceedings of the 15th International Symposium on Transportation and Traffic Theory
  • Location: University of South Australia in Adelaide, Austral
  • Date: 2002-7-16 to 2002-7-18
• Publication Date: 2002

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 23-42

Subject/Index Terms

• TRT Terms: Demand responsive transportation; Fares; Level of service; Operating costs; Operating revenues; Paratransit services; Regulatory constraints; Sensitivity analysis; Supply chain management; Taxi services; Traffic congestion; Waiting time
• Subject Areas: Finance; Freight Transportation; Public Transportation;

Filing Info

• Accession Number: 00929727
• Record Type: Publication
• ISBN: 0080439268
• Files: TRIS, ATRI
• Created Date: Aug 2 2002 12:00AM