Some Issues Relating to the Optimal Design of Bus Routes

G. F. Newell
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G. F. Newell: Institute of Transportation Studies, University of California, Berkeley, California

Transportation Science, 1979, vol. 13, issue 1, 20-35

Abstract: The following is mostly a discussion of some issues relating to the design of minimum cost bus routes serving a multiple origin-multiple destination trip distribution. The main difficulty in determining any “optimal” routing originates from the fact that the objective function (total cost) is a nonconvex function of the assignment; the higher the demand for trips on a route, the better is the service that one can provide. One consequence of this is that a square grid of straight line bus routes is not likely to be an optimal geometry even under highly idealized conditions. “Good” geometries are more likely to focus routes onto a single street and past a common junction.

Date: 1979
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