题名: |
Traffic jam dynamics in stochastic cellular automata |
作者: |
Schreckenberg, M.;Nagel, K.; |
关键词: |
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION ;99 MATHEMATICS, COMPUTERS, INFORMATION SCIENCE, MANAGEMENT, LAW, MISCELLANEOUS; TRAFFIC CONTROL; MATHEMATICAL MODELS; COMPUTERIZED SIMULATION; ROADS; TRANSPORTATION SECTOR; ROUTING; VEHICLES; TRANSPORTATION SYSTEMS; USA; FEDERAL REPUBLIC OF GERMANY |
摘要: |
Simple models for particles hopping on a grid (cellular automata) are used to simulate (single lane) traffic flow. Despite their simplicity, these models are astonishingly realistic in reproducing start-stop-waves and realistic fundamental diagrams. One can use these models to investigate traffic phenomena near maximum flow. A so-called phase transition at average maximum flow is visible in the life-times of jams. The resulting dynamic picture is consistent with recent fluid-dynamical results by Kuehne/Kerner/Konhaeuser, and with Treiterer`s hysteresis description. This places CA models between car-following models and fluid-dynamical models for traffic flow. CA models are tested in projects in Los Alamos (USA) and in NRW (Germany) for large scale microsimulations of network traffic. |
总页数: |
9p |
报告类型: |
科技报告 |