5 research outputs found
The Braess Paradox in Dynamic Traffic
The Braess's Paradox (BP) is the observation that adding one or more roads to
the existing road network will counter-intuitively increase traffic congestion
and slow down the overall traffic flow. Previously, the existence of the BP is
modeled using the static traffic assignment model, which solves for the user
equilibrium subject to network flow conservation to find the equilibrium state
and distributes all vehicles instantaneously. Such approach neglects the
dynamic nature of real-world traffic, including vehicle behaviors and the
interaction between vehicles and the infrastructure. As such, this article
proposes a dynamic traffic network model and empirically validates the
existence of the BP under dynamic traffic. In particular, we use
microsimulation environment to study the impacts of an added path on a grid
network. We explore how the network flow, vehicle travel time, and network
capacity respond, as well as when the BP will occur.Comment: Accepted by 2022 IEEE Intelligent Transportation Systems Conference
(ITSC): https://ieeexplore.ieee.org/abstract/document/992199