Sustainability

This paper proposes a robust optimal eco-driving control strategy considering multiple signalized intersections with uncertain traffic signal timing. A spatial vehicle velocity profile optimization formulation is developed to minimize the global fuel consumption, with driving time as one state variable. We introduce the concept of `effective red-light duration' (ERD), formulated as a random variable, to describe the feasible passing time through signalized intersections. A chance constraint is appended to the optimal control problem to incorporate robustness with respect to uncertain...

Integrated management of food–energy–water systems (FEWS) requires a unified, flexible and reproducible approach to incorporate the interdependence between sectors, and include the risk of non-stationary environmental variations due to climate change. Most of the recently developed methods in the literature fall short of one or more aspects in such integration. In this article, we propose a novel approach based upon fundamentals of decision theory and reinforcement learning that (1) quantifies and propagates uncertainty, (2) incorporates resource interdependence, (3) includes the impact of...

This letter addresses the important issue of energy inefficiency and air pollution resulting from stop-and-go waves on highways by introducing a novel controller called the Attenuative Kerner's Model (AKM). The objective of AKM is to enhance an existing Adaptive Cruise Control (ACC) system to improve vehicle following in stop-and-go waves. It is designed as a hybrid controller that is compatible with a wide range of commercial vehicles equipped with ACC. The article demonstrates the local string stability of the controller. Next, it presents a comparative analysis of AKM against two...

Eventos hidroclimáticos extremos tem se tornado mais recorrente nas últimas décadas na bacia Amazônica. Ainda, o quarto relatório do IPCC mostra que um grande número das projeções dos modelos atmosféricos concorda na tendência de incrementos na frequência e valor destes extremos. No intuito de analisar esses eventos, sob o impacto dos efeitos das mudanças globais na bacia do Rio Madeira, foram desenvolvidas análises de series de tempo das projeções futuras de descargas. Este trabalho apresenta projeções de descargas máximas com base nas vazões geradas pelo Modelo Hidrológico de...