RESUMO Este artigo analisou avanços na redução das desigualdades no Brasil durante o período de 2003 a 2015, para além da perspectiva de renda. Os dados refletem que, embora transformações relevantes tenham ocorrido, mesmo assim, o Brasil persiste como um dos países mais desiguais do mundo. Entretanto, ao colocar uma lupa nos dados de acesso a bens e serviços dos 5% e dos 20% mais pobres disponibilizados pela Pesquisa Nacional por Amostra de Domicílios (PNAD), os achados se contrapõem ao lugar comum de que só se promoveu acesso à renda e ao consumo dos mais pobres no período estudado, inexistindo alterações significativas no quadro de acesso a direitos básicos, políticas públicas de educação, saúde e de infraestrutura.

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The environmental impact of connected and autonomous vehicles (CAVs) is still uncertain. Little is known about how CAVs operational behavior influences the environmental performance of network traffic, including conventional vehicles (CVs). In this paper, a microscopic traffic and emission modeling platform was applied to simulate CAVs operation in Motorway, Rural, and Urban road sections of a medium-sized European city, assuming different configurations of the car-following model parameters associated with a pre-determined or cooperative adaptative behavior of the CAVs. The main contribution is to evaluate the impact of the CAVs operation on the distribution of accelerations, Vehicle Specific Power (VSP) modal distribution, carbon dioxide (CO2) and nitrogen oxides (NOx) emissions for different road types and Market Penetration Rates (MPR). Results suggest CAVs operational behavior can affect CVs environmental performance either positively or negatively, depending on the driving settings and road type. It was found network-wide CO2 varies between savings of 18% and an increase of 4%, depending on the road type and MPR. CAVs adjusted driving settings allowed minimization of system NOx up to 13-23% for MPR ranging between 10 and 90%. These findings may support policymakers and traffic planners in developing strategies to better accommodate CAVs in a sustainable way.

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