Documents d’urbanisme et adaptation au changement climatique: éclairage des intentions grâce à la lexicométrie

Saray Chavez, Nathalie Molines, Katia Chancibault and Bernard De Gouvello

Revue d'économie régionale et urbaine, 2023, vol. Juin, issue 3, 433-458

Abstract: Climate change leads to an increase in precipitation and temperatures. Due to the use of impervious surfaces, urban areas are experiencing an increase in rainfall runoff and urban heat island phenomena. In France, a national climate change adaptation strategy guides national adaptation objectives that must be translated into plans and programs, including inter-municipal local urban plans (PLUi in French). The PLUi have the capacity to convey levers for adaptation such as limitation of soil sealing or the use of the blue-green infrastructure as a support for stormwater management and urban cooling. However, there is no standard adaptation content for the PLUi and local authorities question about whether their documents effectively convey adaptation. We create a content analysis method, specifically designed for the sustainable development project (PADD), a key element of the PLUi as it contains the political project for the territory, in order to understand its adaptation ambitions. The case study is the Nantes metropolitan area, a territory particularly affected by floods and which recently approved its PLUi. We develop here the first step of the method which consists in a lexicometric analysis applied to the PADD corpus. The results reveal that the terms referring to the environment are the most treated by the document. However, specific themes dealing with climate change, adaptation, stormwater management or thermal comfort are statistically less prevalent. This analysis allowed us to formulate assumptions that we hope to confirm or refute through the application of the other steps of the content analysis method. We show that textual analysis can provide useful information for planners seeking to determine whether the policy direction communicated by their PADD is supportive of adaptation.

Keywords: adaptation; content analysis; local urban plan; planning; lexicometry; Iramuteq (search for similar items in EconPapers)
Date: 2023
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