OPTIMIZATION OF TRANSPORTATION NETWORKS DURING URBAN FLOODING1

Authors

  • Marco Ferrante,

    1. Respectively, Assistant Professor, University of Perugia, Dipartimento di Ingegneria Civile ed Ambientale, Via G. Duranti, 93, 06125 Perugia, Italy; National Research Council, Istituto di Ricerca per la Protezione Idrogeologica, Via Madonna Alta, 126, 06128 Perugia, Italy, and Professor, University of Rome “La Sapienza,” Dipartimento Idraulica Trasporti e Strade, Via Eudossiana, 18, 00184 Roma, Italy (E-Mail: Ferranteferrante@unipg.it).
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  • Francesco Napolitano,

    1. Respectively, Assistant Professor, University of Perugia, Dipartimento di Ingegneria Civile ed Ambientale, Via G. Duranti, 93, 06125 Perugia, Italy; National Research Council, Istituto di Ricerca per la Protezione Idrogeologica, Via Madonna Alta, 126, 06128 Perugia, Italy, and Professor, University of Rome “La Sapienza,” Dipartimento Idraulica Trasporti e Strade, Via Eudossiana, 18, 00184 Roma, Italy (E-Mail: Ferranteferrante@unipg.it).
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  • Lucio Ubertini

    1. Respectively, Assistant Professor, University of Perugia, Dipartimento di Ingegneria Civile ed Ambientale, Via G. Duranti, 93, 06125 Perugia, Italy; National Research Council, Istituto di Ricerca per la Protezione Idrogeologica, Via Madonna Alta, 126, 06128 Perugia, Italy, and Professor, University of Rome “La Sapienza,” Dipartimento Idraulica Trasporti e Strade, Via Eudossiana, 18, 00184 Roma, Italy (E-Mail: Ferranteferrante@unipg.it).
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  • 1

    Paper No. 99027 of the Journal of the American Water Resources Association.Discussions are open until June 1, 2001.

Abstract

ABSTRACT: In this paper a numerical model for flood propagation in urban areas is proposed. It has been applied to evaluate flooding hydraulic characteristics in terms of potential flood elevations, depths, and inundated areas. Furthermore, the algorithm efficiency and the consequent reduced computation time allow the use of the hydraulic model as a part of a more complex system for civil protection actions, planning, and management. During flood events, the transportation network plays a main role both in rescuing people when they are more vulnerable and in moving people and materials from and toward affected areas. The reduced efficiency of this transportation network is evaluated based on a least-flood-risk path-finding algorithm. The results of a case study concerning the northern part of the city of Rome, show that the numerical model for unsteady flow in open channel networks achieves the proposed aims. It has proven to be able to describe the flood hydraulic characteristics and to be suitable for real-time flood emergency management in urban areas.

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