Ahmed El-Geneidy David Levinson () (Nexus (Networks, Economics, and Urban Systems) Research Group, Department of Civil Engineering, University of Minnesota)
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Accessibility is the potential of opportunities for interaction in an urban context. The widely used accessibility measure consists of the number of opportunities that can be reached within a region or a period of time multiplied by a cost or impedance function for reaching these opportunities. This measure assumes that all people living within a region will follow a certain impedance function and will equally evaluate the opportunities. This paper proposes a new accessibility measure, “place rank.” Knowing people’s origins and destinations is a key to develop this new measure. Both impedance and value of opportunities are embedded in the dataset that includes origins and estination of each person utilizing the studied region. Level of accessibility in a zone is determined based on the number of people coming to this zone to reach an opportunity. Each person contributes to the accessibility level in the zone where he is commuting to with a different power. The power of the contribution of this person depends on the attractiveness of his zone of his origin. In this paper we discuss the place rank measure and compare it to the traditional gravity based measure. Since this measure is based on people’s actual choices of origins and destinations it is more comprehensive and accurate than previous accessibility measures in terms of impedances and opportunity calculations.
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Paper provided by University of Minnesota: Nexus Research Group in its series Working Papers with number
000026.
Length: Date of creation: 2007 Date of revision: Handle: RePEc:nex:wpaper:placerank
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Find related papers by JEL classification: R40 - Urban, Rural, and Regional Economics - - Transportation Systems - - - General R11 - Urban, Rural, and Regional Economics - - General Regional Economics - - - Analysis of Growth, Development, and Changes R14 - Urban, Rural, and Regional Economics - - General Regional Economics - - - Land Use Patterns
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