Modelagem de dados para planejamento e gestão operacional de transportes. / Data modeling for transportation planning and operations management.

AUTOR(ES)
DATA DE PUBLICAÇÃO

1999

RESUMO

The integration of urban transportation systems management activities, at all levels, pertaining one entity, is highly desirable. Integration across entities is also important when their plans or transportation systems overlap, as usually happens in urban agglomerations. In order to achieve consistent plans among these entities, information must be shared. This sharing of information is better obtained through the integration of their databases. However, such integration has been unsuccessful because of technical and even political factors related to the necessary autonomy of each one. In this Thesis, after analysing several attempts to solve the problem, critical aspects of modelling and building database systems to support Integrated Transportation Planning and Management, pertaining to one entity and also across multiple entities, are identified. For each one, deficiencies of existing systems are analysed and solutions are proposed or directions to follow are given. The critical aspects identified and dealt with are: the ability to support the integration of the different transportation management activities at the operational level: planning, programming and attendance, pertaining one entity; the ability to support the integration of different decision levels pertaining one entity; the content, structure and the temporal stability of databases used for planning at the strategic and/or tactical and regional and/or local levels; the ability to provide communication among different entities; the stability in the face of institutional changes.

ASSUNTO(S)

databases trasportation planning data modeling modelagem de dados bancos de dados planejamento de transportes

ACESSO AO ARTIGO

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