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Hidden Order in Traffic Flows Using Approximate Entropy: An Illustration

In: New Directions in Regional Economic Development

Author

Listed:
  • Kingsley Haynes

    (George Mason University)

  • Rajendra Kulkarni

    (George Mason University)

  • Roger Stough

    (George Mason University)

Abstract

The dynamic nature of traffic flows on urban freeways is self-evident. The plots of workday traffic on segments of major roads against time of day display the familiar contours of lumpy, peaked curves. Over the years the peaks have become blunt and the valleys filled, suggesting nearly day long high-volume traffic. At the same time that the average travel speed on congested freeways has gone up, average commute time has either remained steady or increased marginally and the number of accidents per 100 million VMTs has gone down or remained constant (Gordon et al. 1991; BTS 2006). Traffic at high volumes and high speeds or under designed roads should result in more accidents and slower travel times. This has not occurred but traffic has continued to increase. Congested traffic patterns suggest an inherent disorder or randomness. Could it be that there is a hidden order in the congested traffic patterns? It would be helpful to analyze and understand these linear spatial patterns to see the degree to which order/disorder associated with these patterns can be determined.

Suggested Citation

  • Kingsley Haynes & Rajendra Kulkarni & Roger Stough, 2009. "Hidden Order in Traffic Flows Using Approximate Entropy: An Illustration," Advances in Spatial Science, in: Charlie Karlsson & Ake E. Andersson & Paul C. Cheshire & Roger R. Stough (ed.), New Directions in Regional Economic Development, chapter 0, pages 143-159, Springer.
    • Handle: RePEc:spr:adspcp:978-3-642-01017-0_9
    DOI: 10.1007/978-3-642-01017-0_9
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