6533b853fe1ef96bd12acc3a

RESEARCH PRODUCT

Selection of the Optimal Design Rainfall Return Period of Urban Drainage Systems

Antonino FortunatoElisa OliveriMario Rosario Mazzola

subject

Optimal designHydrologyReturn periodgeographyexpected damagesgeography.geographical_feature_categorydesign rainfallTotal costDrainage systemexpected damages.Flooding (psychology)Environmental engineeringDrainage basinGeneral Medicinereturn periodconstruction costsfloodingWork (electrical)construction costDrainage system (geomorphology)Environmental scienceDrainageEngineering(all)

description

Abstract The aim of this work is to define a methodology to identify the optimal rainfall return period for the design of urban drainage systems. The choice of the optimal return period is made minimizing the total costs of the system: the sewer network is dimensioned for a set of possible design rainfall return periods, and the corresponding construction, maintenance and operation costs are evaluated. For each scenario, the total expected damage from flooding caused by rainfall events with return period greater than the design one is then estimated by hydraulic simulation. This methodology has been applied to a small urban catchment in Palermo (Italy).

yearjournalcountryeditionlanguage
2014-01-01Procedia Engineering
https://doi.org/10.1016/j.proeng.2014.11.502