Financed by the ANR. Project led by LATTS (Ecole des Ponts, UPEM, CNRS)

The VITE project (2014-2018) is concerned with “Cities and energy transitions: issues, drivers, processes and multidisciplinary forward-looking evaluation. Application to the Île-de-France region”.

This project aims to carry out a forward-looking appraisal of the stakes, nature and social, geographical and environmental impacts of energy transition strategies implemented at the scale of an urban region, while also considering the potential for mobilising stakeholders in connection with the strategies involved, paying particular to related transformations of the built environment, infrastructure and the social practices on which these strategies are based (or which the wish to stimulate). Taking the case of the Île-de-France region and applying scenarios developed in the framework of regional strategic planning (in the PDUIF, SDRIF and SRCAE in particular, and taking account of the related technical studies) the project will explore the direct and indirect, intentional and unintentional, beneficial and harmful impacts of proposed or implemented energy strategies, in terms of flows of resources, materials, energy and pollutants, financial flows and cost effectiveness (number of tonnes of oil equivalent or tonnes of carbon saved per million euros invested), and last, the quality of the energy supplied in terms of accessibility, nature and price.

The project will focus on studying the implementation of a few of the principal drivers of the energy transition that are managed by and promoted by local authorities.

A limited number of contrasting energy scenarios will be developed in order to simulate the effect of implementing these drivers of energy transition. The simulations will be based on a chain of urban models that is currently being developed by the Futurs Urbains laboratory of excellence, from three existing models that have already been validated for studying the Ile-de-France region: NEDUM (interactions between transport and land-use, developed by the CIRED); MODUS (computation of traffic flows developed by the LVMT); CHIMERE (air quality, developed by the LISA).

Implementation of the VITE project will be based on continuous, organised comparisons between qualitative approaches and modelling, and on close interactions with a group of local public stakeholders with which the project partners have forged long-term collaborative ties. These interactions with the stakeholders in charge of defining and/or implementing local energy strategies will guarantee that the major energy options considered are realistic and that the findings of the VITE project will be implemented by society.

Contacts: Corinne BLANQUART and Laetitia DABLANC