Optimizing Traffic in Virtual and Real Space

  • D. Helbing
  • B. A. Huberman
  • S. M. Maurer


We show how optimization methods from economics known as portfolio strategies can be used for minimizing down-load times in the Internet and travel times in freeway traffic. While for Internet traffic, there is an optimal restart frequency for requesting data, freeway traffic can be optimized by a small percentage of vehicles coming from on-ramps. Interestingly, the portfolio strategies can decrease the average waiting or travel times, respectively, as well as their standard deviation (“risk”). In general, portfolio strategies are applicable to systems, in which the distribution of the quantity to be optimized is broad.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • D. Helbing
    • 1
    • 2
    • 3
  • B. A. Huberman
    • 1
  • S. M. Maurer
    • 1
  1. 1.Xerox PARCPalo AltoUSA
  2. 2.II. Institute of Theoretical PhysicsUniversity of StuttgartStuttgartGermany
  3. 3.Collegium Budapest - Institute for Advanced StudyBudapestHungary

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