Developments in network location with mobile and congested facilities |
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Authors: | Oded Berman Richard C Larson Amedeo R Odoni |
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Institution: | Faculty of Management, The University of Calgary, Calgary, Alberta T2N-1N4, Canada;Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, U.S.A. |
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Abstract: | We review four facility location problems which are motivated by urban service applications and which can be thought of as extensions of the classic Q-median problem on networks. In problems P1 and P2 it is assumed that travel times on network links change over time in a probabilistic way. In P2 it is further assumed that the facilities (servers) are movable so that they can be relocated in response to new network travel times. Problems P3 and P4 examine the Q-median problem for the case when the service capacity of the facilities is finite and, consequently, some or all of the facilities can be unavailable part of the time. In P3 the facilities have stationary home locations but in P4 they have movable locations and thus can be relocated to compensate for the unavailability of the busy facilities. We summarize our main results to date on these problems. |
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Keywords: | Facility location network travel times |
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