Towards evaluating the benefits of inter-vehicle coordination
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2015Access:
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Niall O'Hara, Marco Slot, Julien Monteil, Vinny Cahill, Mélanie Bouroche, Towards evaluating the benefits of inter-vehicle coordination, 18th IEEE International Conference on Intelligent Transportation Systems, Las Palmas de Gran Canaria, Spain, September 15-18, 2015Download Item:
Abstract:
While vehicle automation has the potential to sig-
nificantly improve safety and traffic efficiency, the full potential
will only be realised when vehicles start exploiting wireless
communication to cooperate with each other and coordinate
their interactions in advance. Ensuring that vehicles coordinate
safely while improving efficiency is, however, a very challenging
problem as it depends on (i) the characteristics of individ-
ual vehicles (vehicle physics, sensors), (ii) unreliable wireless
communication, and (iii) driving behaviour at a microscopic
level, and their compounded effects at scale. The presence
of non-communicative, non-automated vehicles must also be
considered.
Designing and evaluating coordination protocols requires a
scalable simulation framework that is accurate both micro-
scopically (to assess safety) and macroscopically (to evaluate
efficiency). Standard car-following models, where position and
velocity are dictated by local input stimuli, produce sometimes
unrealistic behaviour when laterally changing position, and lack
support for additional inputs. Furthermore, conventional envi-
ronments used to model traffic flow are either too fine-grained
to scale or too coarse to appropriately simulate control logic.
This paper introduces RoundaSim consisting of (i) a traffic
simulator using a novel approach of mixed discrete-continuous
modes of time, and (ii) a framework for implementing car-
following models that supports lane-changing and coordination
protocols, with additional inputs from advanced sensors and
wireless communications. We show how our framework can be
used to implement and evaluate a car-following model with lane
changes and validate that the traffic flow achieved approximates
that of real-world highways. This allows our platform to be
used as a baseline for evaluating the safety and efficiency of
coordination protocols.
Author's Homepage:
http://people.tcd.ie/nioharahttp://people.tcd.ie/bourocm
http://people.tcd.ie/vjcahill
http://people.tcd.ie/monteilj
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18th IEEE International Conference on Intelligent Transportation SystemsType of material:
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Vehicle AutomationMetadata
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