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An agent-based approach for road pricing : system-level performance and implications for drivers

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An agent-based approach for road pricing : system-level performance and implications for drivers

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Título An agent-based approach for road pricing : system-level performance and implications for drivers
Autor Tavares, Anderson Rocha
Bazzan, Ana Lucia Cetertich
Abstract Background: Road pricing is a useful mechanism to align private utility of drivers with a system-level measure of performance. Traffic simulation can be used to predict the impact of road pricing policies. The simulation is not a trivial task because traffic is a social system composed of different interacting entities. To tackle this complexity, agent-based approaches can be employed to model the behavior of the several actors in transportation systems. Methods: We model traffic as a multiagent system in which link manager agents employ a reinforcement learning scheme to determine road pricing policies in a road network. Drivers who traverse the road network are cost-minimizer agents with local information and different preferences regarding travel time and credits expenditure. Results: The vehicular flow achieved by our reinforcement learning approach for road pricing is close to a method where drivers have global information of the road network status to choose their routes. Our approach reaches its peak performance faster than a fixed pricing approach. Moreover, drivers’ welfare is greater when the variability of their preferences regarding minimization of travel time or credits expenditure is higher. Conclusions: Our experiments showed that the adoption of reinforcement learning for determining road pricing policies is a promising approach, even with limitations in the driver agent and link manager models.
Contido em Journal of the Brazilian Computer Society. Rio de Janeiro. Vol. 20, no. 15 (2014), p. 1-15
Assunto Informatica : Transportes
Sistemas multiagentes
[en] Agent-based simulation
[en] Multiagent system
[en] Road pricing
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/110285
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