Introduction and Overview

Microscopic simulation

Microscopic simulation (also called microsimulation) of traffic means that the movements and choices of each individual traveller or vehicle are simulated. We do not here make any comparisons between models , but comparisons can be found in the literature, for example in:

Mesoscopic simulation

Mesoscopic simulation is less detailed than microscopic simulation. For example, the traffic stream may be represented in some aggregate manner rather than as individual vehicles, and lane change maneuvers would probably not be represented. The models DynaMIT, DYNASMART and METROPOLIS are microscopic on the demand side (that is, they simulate individual users choices of whether and when to travel, route choice, etc.) and mesoscopic on the supply side (that is, they model the dynamics of traffic flow using traffic flow relations).

The following two papers reported comparisons of some dynamic traffic models, in particular, INTEGRATION, DYNASMART, DINOSAUR, METS.

  • Lo, H., Lin, W., Liao, L., Chang, E., Tsao, J., 1996a. A comparison of dynamic traffic models: part I framework. Technical report, UCB-ITS-PRR-96-22. Institute of Transportation Studies, University of California, Berkeley.
  • Lo, H., Lin, W., Liao, L., Chang, E., Tsao, J., 1996b. A comparison of dynamic traffic models: part II results. Technical report, UCB-ITS-PWP-97-15. Institute of Transportation Studies, University of California, Berkeley.