Assessing equity in transportation accessibility distribution: the case of Belém Metropolitan Region / Uma análise de acessibilidade sob a ótica da eqüidade - o caso da região metropolitana de Belém.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2000

RESUMO

The growth process of Belém, similarly to what happened to other Brazilian cities, was characterized by the location of part of its population in areas with insufficient road infrastructure. As a consequence, these were in general low accessibility areas. Considering that the impacts of the growth process were not evenly distributed to all population groups, the aim of this work is to evaluate the distribution patterns of transportation accessibility to different income groups in the Metropolitan Region of Belém. This is an important step towards the formulation of strategies to reestablish equity in the accessibility distribution. Two indexes have been used to estimate accessibility values in a geographic information system environment: a Mean Separation Index and a Gravity-type Index. The attractiveness values of the Gravity-type Index were subsequently changed to create alternative scenarios in which the location of the retail and service areas was different from the current conditions. The results found in this study showed that: a) the alternative scenarios had a better transportation accessibility distribution than the present one; and b) the selection of the best alternative scenario could be based on equity criteria. Next, once again oriented by an equity criterion, other GIS tools were applied to select the areas in the chosen scenario in which transportation accessibility could be further improved.

ASSUNTO(S)

acessibilidade sistema de informações geográficas equity eqüidade accessibility geographic information system

ACESSO AO ARTIGO

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