This report presents the activities related to integrated assessment modeling at the regional scale. To study a methodology that fully supports decision-makers in evaluating energy-environmental policies with a multi-scale approach, modeling activities have been initiated at urban and regional scales, with the aim of creating flexible tools for analyzing energy and/or emission scenarios differentiated not only by emission sector, but also by area and spatial scale of application.

The study summarizes the preliminary results of functionality tests aimed at developing a simplified emissions-concentrations model at regional and urban scales, across three application domains: the metropolitan area of Milan, the Lombardy region, and the rest of the Po Valley. The focus has been primarily on the road transport sector, responsible for 25% of particulate matter concentrations in Milan and equally significant contributions (61%) to nitrogen dioxide concentrations, but also on the residential sector and the agricultural and livestock sector.

Five scenarios were tested, including four mobility scenarios, involving various emission sectors and types of vehicles, such as light and heavy commercial vehicles, and specific areas at urban, regional, or basin level. The activities have made it possible to evaluate the model ability to rapidly adapt to the exploration of potentially competing solutions applied on complementary scales or sectors.

The methodology has proven effective and represents a potential starting point for the development of an integrated energy-environmental model at urban and regional scale.

The Report is available on the Italian site