The French national program " Trame Verte Urbaine " (50 researchers, 11 research teams ... more The French national program " Trame Verte Urbaine " (50 researchers, 11 research teams both in social sciences and in ecology) has built an assessment of urban green infrastructures and propose to develop a referential frame in order to guide the implementation of green infrastructure politics at local scale. The interest of urban green continuities with respect to their capacity to provide ecosystemic services is considered in order to work out some referential frames that can be used by the planners and the municipalities: greenways are considered as a component of infrastructure between aesthetics and ecology in favour of a new urbanity. Three French cities with very different urban culture and environmental context were studied, among other case studies: Paris (north of France), Marseille (south of France) and Strasbourg (east of France). We consider three spheres of stakeholders involved in the process of green infrastructure: planners / inhabitants / number three?. F...
De nombreuses collectivités sont confrontées à l'intégration, dans leurs politiques locales, ... more De nombreuses collectivités sont confrontées à l'intégration, dans leurs politiques locales, d'une réflexion concernant la préservation, voire la réhabilitation des trames vertes au sein de leurs territoires. Cette démarche n'est pas sans leur poser de nombreuses difficultés tant dans la méthodologie à adopter que dans l'appropriation des enjeux que porte la notion de trame verte. Le référentiel d'intérêt et de mise en œuvre de trames vertes en milieu urbain destiné aux collectivités, réalisé dans le cadre de l'ANR Trame verte urbaine et le Plan Nature en ville, cherche à apporter les clés d'appréhension de la mise en œuvre d'une politique de trames vertes à l'échelle locale. L'objectif de la présente étude consiste à analyser l'originalité des modalités de gouvernance d'une politique de Trame verte et bleue dans la pratique urbaine actuelle.
ABSTRACT “Trame verte” (greenway) has become one “star” of the Grenelle laws. However, the concep... more ABSTRACT “Trame verte” (greenway) has become one “star” of the Grenelle laws. However, the concept is not new as evidenced by the multiplicity of legal instruments (sometimes old) that may regulate and plan the components of a greenway (I). However, the local example studied, the Angers Loire Métropole urban region, demonstrates how difficult it is to connect the diversity of national and international tools to ground truth at the communal planning level (II). This shift from global to local can draw some lessons for a better consideration of greenways, but it also raises some questions that the future regional ecological corridors Grenelle plan will probably have to cope with (III).
ABSTRACT Understanding how urban residents rate the benefits associated with urban green spaces i... more ABSTRACT Understanding how urban residents rate the benefits associated with urban green spaces is crucial in developing appropriate urban green infrastructure strategies. This study explores residents’ beliefs concerning the benefits of urban green spaces and investigates whether similarities and differences can be highlighted in four different French and Portuguese urban areas (Paris, Angers, Lisbon and Porto) through a questionnaire survey (n = 1000) based on the best-worst scaling (BWS) method. The results demonstrated that urban green space benefits are not equally valued among cities, suggesting that there is simultaneously a consensus among the most and least valued benefits across cities, as well as local variations in city residents’ beliefs about some other benefits of urban green spaces. For example, the importance of urban green spaces for personal health and well-being and to facilitate contact with nature were noted by residents of all four urban areas; consensus also exists on the little support given to two microclimatic functions of green spaces, namely, air temperature reduction and noise reduction. On the other hand, some green space benefits, such as the promotion of biodiversity or the contribution to the city image, are differentially valued among the four cities. Overall, the study stresses the importance of developing local assessments of the beliefs surrounding the benefits of urban green spaces. Recognizing these multiple beliefs and communicating clearly about the benefits offered by green spaces may help to mitigate future conflicts between residents and urban planners and managers, and thus contribute to optimizing green infrastructure planning benefits.
The French national program " Trame Verte Urbaine " (50 researchers, 11 research teams ... more The French national program " Trame Verte Urbaine " (50 researchers, 11 research teams both in social sciences and in ecology) has built an assessment of urban green infrastructures and propose to develop a referential frame in order to guide the implementation of green infrastructure politics at local scale. The interest of urban green continuities with respect to their capacity to provide ecosystemic services is considered in order to work out some referential frames that can be used by the planners and the municipalities: greenways are considered as a component of infrastructure between aesthetics and ecology in favour of a new urbanity. Three French cities with very different urban culture and environmental context were studied, among other case studies: Paris (north of France), Marseille (south of France) and Strasbourg (east of France). We consider three spheres of stakeholders involved in the process of green infrastructure: planners / inhabitants / number three?. F...
De nombreuses collectivités sont confrontées à l'intégration, dans leurs politiques locales, ... more De nombreuses collectivités sont confrontées à l'intégration, dans leurs politiques locales, d'une réflexion concernant la préservation, voire la réhabilitation des trames vertes au sein de leurs territoires. Cette démarche n'est pas sans leur poser de nombreuses difficultés tant dans la méthodologie à adopter que dans l'appropriation des enjeux que porte la notion de trame verte. Le référentiel d'intérêt et de mise en œuvre de trames vertes en milieu urbain destiné aux collectivités, réalisé dans le cadre de l'ANR Trame verte urbaine et le Plan Nature en ville, cherche à apporter les clés d'appréhension de la mise en œuvre d'une politique de trames vertes à l'échelle locale. L'objectif de la présente étude consiste à analyser l'originalité des modalités de gouvernance d'une politique de Trame verte et bleue dans la pratique urbaine actuelle.
ABSTRACT “Trame verte” (greenway) has become one “star” of the Grenelle laws. However, the concep... more ABSTRACT “Trame verte” (greenway) has become one “star” of the Grenelle laws. However, the concept is not new as evidenced by the multiplicity of legal instruments (sometimes old) that may regulate and plan the components of a greenway (I). However, the local example studied, the Angers Loire Métropole urban region, demonstrates how difficult it is to connect the diversity of national and international tools to ground truth at the communal planning level (II). This shift from global to local can draw some lessons for a better consideration of greenways, but it also raises some questions that the future regional ecological corridors Grenelle plan will probably have to cope with (III).
ABSTRACT Understanding how urban residents rate the benefits associated with urban green spaces i... more ABSTRACT Understanding how urban residents rate the benefits associated with urban green spaces is crucial in developing appropriate urban green infrastructure strategies. This study explores residents’ beliefs concerning the benefits of urban green spaces and investigates whether similarities and differences can be highlighted in four different French and Portuguese urban areas (Paris, Angers, Lisbon and Porto) through a questionnaire survey (n = 1000) based on the best-worst scaling (BWS) method. The results demonstrated that urban green space benefits are not equally valued among cities, suggesting that there is simultaneously a consensus among the most and least valued benefits across cities, as well as local variations in city residents’ beliefs about some other benefits of urban green spaces. For example, the importance of urban green spaces for personal health and well-being and to facilitate contact with nature were noted by residents of all four urban areas; consensus also exists on the little support given to two microclimatic functions of green spaces, namely, air temperature reduction and noise reduction. On the other hand, some green space benefits, such as the promotion of biodiversity or the contribution to the city image, are differentially valued among the four cities. Overall, the study stresses the importance of developing local assessments of the beliefs surrounding the benefits of urban green spaces. Recognizing these multiple beliefs and communicating clearly about the benefits offered by green spaces may help to mitigate future conflicts between residents and urban planners and managers, and thus contribute to optimizing green infrastructure planning benefits.
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