STEEP

• Project funded by the 2012 ANR program “Numerical Models”
• Coordinator: Emmanuel Prados (STEEP/INRIA)
• Partners: STEEP (INRIA), MOISE (INRIA), IRTES-SeT, LET, LVMT, IFSTTAR-DET, IDDRI, VINCI (Pirandello Ingenierie) and IAU-ÎdF.
• Abstract: This proposal aims to foster the use of LUTI models for the design and evaluation of land use and transport policies by addressing these two impediments. This involves: (a) defining a calibration methodology and developing relevant and efficient algorithms to facilitate the parameter estimation of LUTI models; (b) defining a validation methodology, in both the historical and urban economics senses, and developing the related algorithms. In both cases, analyzing the uncertainty that may arise from either the data or the underlying equations, quantifying how these uncertainties propagate in the model, and performing sensitivity analysis to determine the relevance of the various data and model parameters are of major importance…
• Web page: https://project.inria.fr/cities/

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ESNET: Ecosystem services networks futures for the Grenoble region

• Project funded by ONEMA via FRB (2013-2016)
• Coordinator: Sandra Lavorel (LECA/CNRS)
• Partners: LECA (CNRS), STEEP (INRIA), EDDEN (PACTE / CNRS), CEMAGREF (“Gestion des Territoires” dept.), Institut de Géographie Alpine (PACTE), ERIC (Université Lumière – Lyon 2).
• Abstract:
  ESNET aims at assessing alternative futures of ecosystem services networks for the urban area of Grenoble, a city in the French Alps, under combined scenarios of urban development, climate change, and non urban land-uses. We hypothesize that ecosystem services are interconnected through their underlying ecological mechanisms and operate as networks from the local to the regional scales. These networks are underpinned by fundamental ecological processes as well as by human dynamics. ESNET will primarily address the ecological dynamics determining ecosystem services trade-offs and synergies, while incorporating human dynamics in terms of land-use futures and ecosystem services preferences by local stakeholders and policy makers.

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TRACER: TRanus, Analyse de la calibration et des Erreurs, Retours sur Grenoble et Caracas

• Project founded by Ecos-Nord
• January 2012 – dec 2015
• Coordinator: Laurence Tubiana (IDDRI), Tomàs de le Barra (Facultad de Arquitectura y Urbanismo, Venezuela)
• Partners: IDDRI, STEEP, Facultad de Arquitectura y Urbanismo (Venezuela)
• Abstract: Having quantified elements on urban dynamics is necessary if one wants to implement policies that are coherent with sustainable urban objectives. Land use and transport integrated (LUTI) models enable such a quantification. Their use has successfully increased in the framework of urban prospect where environmental issues are preponderant. A large dissemination of such tools in the local authority agencies is nowadays crucial to evaluate urban policies, yet limited by various difficulties, such as lack of robustness and calibration issues. The objective of this project is to bring answers to these limitations. We choose to focus on the Tranus model, one of the most used LUTI model. Our work will be organized in three research directions. First, we aim at analyzing how Tranus is used by local agencies. Then, a comparison between the Tranus implementation and use for the cities of Grenoble (France) and Caracas (Venezuela) is planned. And finally semi-automatic calibration tools will be developed, and an uncertainty and sensitivity analysis will be performed.

Past project

• Project founded by PIRVE‘09 (Programme interdisciplinaire de recherches Ville et Environnement)
• July 2009 – dec 2010