Entre compréhension et aide à la décision : modélisation de l'émergence et de l'évolution de circuits courts localisés. Une approche Territoire/Réseau en région PACA

Abstract : My study concerns the process of constitution of short food supply chains and especially in the region of Provence-Alpes-Côte d'Azur. My training course at the regional council of PACA is working to the observatory and governance of short food supply chains. These initiatives promote local agriculture products. Namely by encouraging social and spatial proximity between the actors of food networks. The aim of the observatory is to create data to establishing the diagnosis of a phenomenon and to follow its spatiotemporal evolution. It also is a tool to coordinate the different actors of territorial/regional development in the field of food territorial governance. This regional observatory wants to jointly rethink agricultural production and food consumption in the territories and to consider developing food territorial governance. How do alternative food networks evolve? Modelling approach to understand the dynamics of formation and help their territorial structuring. The innovating nature of short food supply chains implies a strong adaptability of the system producing different experiences. As a matter of fact short supply chains are vital elements in building perennial local economies. Recent studies have showed the social and economic aspects of their structuring potential, but few have questioned the spatial interactions involved in this system. I observe the complexity of phenomenon: many interactions, social and spatial, the evolutive forms, social and spatial, dynamic collective, emergence process, diversity of actors etc. So I choose to develop complexity science approach by development of models individual-centered with SMA platform. The princip of it is to create simulation rules for individuals rather than populations, in virtual space and time. For instance, I built a model to help the Pays d'Arles to organize a sustainable development of collective restoration, thanks to a selection of the canteens and of the producers based on different characteristics. The transport network was also represented and I determined the cost-distances (in money, in pollution, and in time) and could therefore calculate the optimal supply on this territory. In parallel I continued developing a model of the emergence of the AMAP's network. The aim is to observe the impact of spatial laws and structures of territory on the collective dynamic. In fact, the spatial analysis show a relation between urban morphology and AMAP network's morphology. This study stresses on two aspects: understanding the process of constitution of alternative food networks by spatial prism on the one hand, and helping political decisions on local development by food system prism. I think the models are the good media for this. Their conception being based on actors, simulations can be refined or changed by retroaction on the base factors.
Document type :
Master Thesis
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https://dumas.ccsd.cnrs.fr/dumas-00806946
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Submitted on : Tuesday, April 2, 2013 - 4:12:32 PM
Last modification on : Thursday, April 18, 2019 - 11:36:02 PM
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  • HAL Id : dumas-00806946, version 1

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Noé Guiraud. Entre compréhension et aide à la décision : modélisation de l'émergence et de l'évolution de circuits courts localisés. Une approche Territoire/Réseau en région PACA. Géographie. 2012. ⟨dumas-00806946⟩

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