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Road Network Expansion Based on Toll Sensitive to Construction Cost and Type of Users in Elastic Demand

Soltani Sobh, Ali | 2009

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 40209 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Poorzahedy, Hossein
  7. Abstract:
  8. Road network expansion is a well known problem in the world, particularly in developing countries. One approach in financing this development is to charge the users for the services rendered. Recent studies prove the merits of private sector participation in road investment and revenue collection. Public sector may cooprate with private sector in permitting it to build the roads, operate and maintain them for certain period of time, while taking advantage of the revenues collected. The road will, then, be transferred to the public sector when that period of time is over. This study presents an extension to a previous model in this area. It presents a bi-level programming network design problem with elastic demand, in which the upper level problem minimizes total users cost. The lower level problem is a multi-class user equilibrium flow problem in which tolls are levied upon the users in proportion to the cost each class of vehicles exert upon the road in both investment and maintenance. The total revenue collected covers the total cost of the private sector building the road, plus a specified minimum return on investment. The application of the proposed method is shown on two test networks. The smaller one is to analyse the problem and discuses it in detail, and the medium size network of Sioux Falls, South Dakota, shows the applicability of the method in larger networks.
  9. Keywords:
  10. Network Pricing ; Build-Operate-Transfer (BOT) ; Network Design ; Multiclass Equilibrium Flow

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