Simple queueing model applied to the city of Portland
- Los Alamos National Lab., NM (United States)
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.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- Department of Defense, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 350889
- Report Number(s):
- LA-UR-98-3903; CONF-990112-; ON: DE99002604; TRN: AHC29921%%74
- Resource Relation:
- Conference: Transportation Research Board (TRB) annual meeting, Washington, DC (United States), Jan 1999; Other Information: PBD: 31 Jul 1998
- Country of Publication:
- United States
- Language:
- English
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