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Simple queueing model applied to the city of Portland
| 题名： | Simple queueing model applied to the city of Portland |
| 作者： | Nagel, K.;Simon, P.M.; |
| 关键词： | 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; TRAFFIC CONTROL; AUTOMATION; COMPUTERIZED SIMULATION; URBAN AREAS; OREGON; CAPACITY; ROAD TRANSPORT |
| 摘要： | The authors 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. They 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 time on a desktop workstation. |
| 总页数： | 22p |
| 报告类型： | 科技报告 |
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