Traffic congestion and demand were measured in lower New York City using Sky Count method for aerial photographic analysis; high-altitude photographs are overlaid with geographic grid system corresponding to one minute of latitude and longitude and subdivided into 180 data cells, each 400 sq ft; traffic demand level, taken as number of active vehicles observed, and congestion level, taken as number of active vehicles found in waiting lines, are counted for each cell; empirical formulation of congestion demand relationship is determined for grid segment based on average characteristics of its constituent cells.
Sky count of traffic congestion and demand
Traffic Eng Control
Traffic Engineering and Control ; 7 , n 5
1965
4 pages
Article (Journal)
English
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