We present an agent-based model which explores the impact of green- ing a city for pluvial flood risk reduction, to inform planning decisions in cities. In particular we focus on the location of an archaeological site lying 2 meters below ground level in the city centre of Ravenna, Italy, which is subject to pluvial flooding. A map of Ravenna was divided into cells which could be eligible for modelled greening if they contained a car park, a street or a pedestrianised area. The number and location of cells greened varied with each run of the model. This was combined with precipitation and temperature data from Ravenna, and subse- quently estimated scores for evapotranspiration and permeability. In general, the greater number of greening measures introduced corresponded to a reduced vol- ume of excess rainwater. There was a particular effectiveness of greened streets at reducing excess runoff compared to car parks and pedestrian areas. Our results demonstrate the usefulness of ABM in the field of disaster risk management.
An agent-based model of greening a city for reducing pluvial flooding at a cultural heritage site
Angela Santangelo;Eleonora Melandri
2022
Abstract
We present an agent-based model which explores the impact of green- ing a city for pluvial flood risk reduction, to inform planning decisions in cities. In particular we focus on the location of an archaeological site lying 2 meters below ground level in the city centre of Ravenna, Italy, which is subject to pluvial flooding. A map of Ravenna was divided into cells which could be eligible for modelled greening if they contained a car park, a street or a pedestrianised area. The number and location of cells greened varied with each run of the model. This was combined with precipitation and temperature data from Ravenna, and subse- quently estimated scores for evapotranspiration and permeability. In general, the greater number of greening measures introduced corresponded to a reduced vol- ume of excess rainwater. There was a particular effectiveness of greened streets at reducing excess runoff compared to car parks and pedestrian areas. Our results demonstrate the usefulness of ABM in the field of disaster risk management.File | Dimensione | Formato | |
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