原文传递
SIMPLE QUEUEING MODEL APPLIED TO THE
CITY OF PORTLAND
| 题名： | SIMPLE QUEUEING MODEL APPLIED TO THE CITY OF PORTLAND |
| 作者： | Patrice M. Simon, TSASA Kai "NMI" Nagel, TSASA |
| 关键词： | simple；queue；plie；model；land；workstation；simulation；port；desktop；router |
| 摘要： | We present a simple traffic micro-simulation model that models the effects of capacity cut-off, i.e. the effect of queue built-up when demand is exceeding capacity, and queue spillback, i.e. the effect that queues can spill back across intersections when a congested link is filled up. We derive the model’s fundamental diagrams and explain it. The simulation is used to simulate traffic on the emme/2 network of the Portland (Oregon) metropolitan region (20 000 links). Demand is generated by a simplified home-to-work assignment which generates about half a million trips for the AM peak. Route assignment is done by iterative feedback between micro-simulation and router. Relaxation of the route assignment for the above problem can be achieved within about half a day of computing tinae on a desktop workstation. |
| 报告类型： | 科技报告 |
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