This paper attempts to extend the approach proposed by Kanafani to optimize travel time savings obtainable from terminals located in an idealized linear city and to apply the resulting models to a case study. Only the location problem is dealt with in this paper and, for that, only travel-time savings obtained by connecting the terminal to the airport with an exclusive mass transit system are considered. The models developed here are intended to assist in the design of such a system by responding to the following questions: At what speed should the transit links connecting the airport and the terminals be operated? What is a good location for each terminal? Need we be concerned with precise terminal locations as long as they are reasonable? If the terminals are located on the basis of a particular link speed, will the locations still be good if the link speed is changed? Must we be concerned with possible future expansion of the number of terminals in the system when making present locational decisions? How many terminals should there be in an off-airport terminal system? A model strategy using idealized representations of the off-airport terminal systems and the cities they serve was adopted. A small number of variables are considered and some continuum approximations that permit the use of simple differential calculus in arriving at optimal locations are adopted. The advantage of this approach is that the influence of each factor considered in the model is readily discernible. The disadvantage is that the model is inevitably a highly stylized representation of any practical case to which it is applied. In the model the assumption is made that benefits accure only as time savings to users and that the amount of time spent at a terminal is the same for each user. It is also assumed that a terminal may be located anywhere within the city, that the speed of travel on the system transit links is uniform, that the link routes must follow the orientation of the city transportation route network, and that the speed of travel on this city network is also uniform.

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    Operations Research Society of America

    428 East Preston Street
    Baltimore, MD  United States  21202
  • Authors:
    • POULTON, M C
    • Kanafani, A
  • Publication Date: 1975-8

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  • Accession Number: 00155477
  • Record Type: Publication
  • Source Agency: Massachusetts Institute of Technology
  • Files: TRIS
  • Created Date: Aug 31 1981 12:00AM