[PDF][PDF] Coordinated active traffic management freeway strategies using capacity-lagged cell transmission model

JM Torné, F Soriguera… - … Research Board Annual …, 2014 - researchgate.net
Transportation Research Board Annual Meeting, 2014researchgate.net
ABSTRACT 1 Dynamic speed limits (DSL) strategies are expected to delay onset of
congestion thanks to its 2 ability to improve traffic flow homogenization and its mainstream
metering feature. A new 3 coordinated strategy, ie ramp metering (RM) together with DSL, is
proposed to reduce the 4 capacity drop occurrence in the vicinity of an on-ramp. It is based
in a simple formulation which 5 captures the endogenous merge capacity. The effectiveness
of the new control strategy is tested 6 with a cell transmission model extension, which …
Abstract
Dynamic speed limits (DSL) strategies are expected to delay onset of congestion thanks to its 2 ability to improve traffic flow homogenization and its mainstream metering feature. A new 3 coordinated strategy, ie ramp metering (RM) together with DSL, is proposed to reduce the 4 capacity drop occurrence in the vicinity of an on-ramp. It is based in a simple formulation which 5 captures the endogenous merge capacity. The effectiveness of the new control strategy is tested 6 with a cell transmission model extension, which incorporates the ability to reproduce DSL 7 strategies together with capacity drop phenomena. The simulation allows comparing different 8 control/no-control scenarios considering a hypothetical freeway section containing an on-ramp. 9 Results show amelioration in the performance indicators of the system, highlighting the equity-10 friendly component of the coordinated freeway strategies. 11 12
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