Mainstream Traffic Flow Control (MTFC) with Variable Speed Limits (VSL) is a freeway traffic control method which aims to maximize throughput by regulating the mainstream flow upstream from a bottleneck. Recent studies in a macroscopic simulator have shown optimal and feedback MTFC potential to improve traffic conditions. In this paper, local feedback MTFC is applied in microscopic simulation for an on-ramp merge bottleneck. Traffic behavior reveals important aspects that had not been previously captured in macroscopic simulation. Mainly, the more realistic VSL application at specific points instead of along an entire freeway section produces a slower traffic response to speed limit changes. In addition, the nonlinear speed limit-flow relation observed in the microscopic model is more pronounced than what was observed at the macroscopic level. After appropriate modifications in the control law significant improvements in traffic conditions were obtained.
Microscopic simulation analysis of Mainstream Traffic Flow Control with Variable Speed Limits
2013-10-01
485881 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Mainstream Traffic Flow Control on Freeways Using Variable Speed Limits
DOAJ | 2013
|Traffic Flow Control Using Variable Speed Limits
British Library Conference Proceedings | 2002
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