Urban Velocity Fields (1970)

Title: Urban Velocity Fields

Article in: Environment and Planning; Vol. 2, No. 2

Authors: Shlomo Angel, Geoffrey M Hyman

First published: 15 January, 1970

Pages: 211-224

Overview: The city is not an undifferentiated terrain and travel does not occur along straight-line paths at constant velocities. Variations in travel velocities at different locations bend the minimum time paths away from regions of high congestion. This paper discusses a transformation of the urban plane into a time surface on which distance corresponds to travel time, and describes the construction of minimum paths and isochrones for various velocity fields.

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