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Optimal Routing Of Wide Corridors, Dana Tomlin
Optimal Routing Of Wide Corridors, Dana Tomlin
Proceedings of the Fábos Conference on Landscape and Greenway Planning
Techniques for tracing minimum-cost routes between nodes in a cost-weighted network have long been used in conjunction with geographic information systems (GIS) to allocate linear features such as roads, pipes, or cables. One of the problems with such techniques, however, is that they regard these features as truly linear in nature: having length but no appreciable width. When siting features such as rights-of-way, wildlife corridors, or greenways that clearly do encompass two significant dimensions, the whole area of each feature must be considered when attempting to minimize cost. Past approaches to the optimal routing of such wide corridors have generally …
“But How Do We Get To The Greenway?”— A Multi-Disciplinary, Multi-Jurisdiction, Multimodal Strategy To Increase Connections To The Charles River Basin, Cynthia Smith Fasla, Phil Goff Leed Ap, Christopher M. Greene Rla
“But How Do We Get To The Greenway?”— A Multi-Disciplinary, Multi-Jurisdiction, Multimodal Strategy To Increase Connections To The Charles River Basin, Cynthia Smith Fasla, Phil Goff Leed Ap, Christopher M. Greene Rla
Proceedings of the Fábos Conference on Landscape and Greenway Planning
The world-famous Charles River Reservation lines both sides of its majestic river for 8-1/2 miles in greater Boston. Created as a State Reservation between 1910 and 1936, this beautiful urban greenway contains continuous, longitudinal paths that serve as “trunk routes” for non-motorized transportation, hourly serving as many as 10,000 cyclists, pedestrians and runners. However, narrow bridges and urban land uses abutting the Reservation (high-volume arterial roads, railyards and car-oriented streets and businesses) present major barriers to access from the adjacent communities and to the greenway and the river.
This paper presents the draft findings and specific strategies of a “Pedestrian …
Potentials And Limitations Of Implementing Linear Infiltration Systems On Urban Streets, Frank Sleegers
Potentials And Limitations Of Implementing Linear Infiltration Systems On Urban Streets, Frank Sleegers
Proceedings of the Fábos Conference on Landscape and Greenway Planning
Increasing infiltration systems in urban environments has become a major focus of our discipline to reduce the harmful impact of stormwater on urban watersheds. Two recent studies were conducted by the author of this paper (Sleegers and Brabec; 2013, Sleegers, 2013) with the focus on evaluating the aesthetics of linear urban infiltration systems on urban streets. Each study revealed challenges and limitations of these systems on various levels. What are the crucial criteria to propagate infiltration along streets, raise their acceptance and make them more usable? The purpose of this paper is to investigate the challenges and limitations of urban …
Greenway Patterns And City Planning, Archana Sharma
Greenway Patterns And City Planning, Archana Sharma
Proceedings of the Fábos Conference on Landscape and Greenway Planning
Greenway lies at the intesection of citified nature and naturalized city, which is a powerful performative position to occupy. Yet the current discourse, largely approaches Greenway as a program that is inserted in the urban fabric to form a micro-scale connective between homogenous or heterogenous landscape. This article is motivated by the nostalgic reality of agricultural times when the urban pattern was guided by rivers and floodplains, and explores the counter programming position on cities which is inserting urban fabric into the greenway or landscape matrix. The design with nature and for all biotic species theses of Ian McHarg and …
The Role Of Sustainable Greenways In Achievement Of Improving The Quality Of Life (Tehran’S Greenways As A Case Study), Fatemeh Shahani
The Role Of Sustainable Greenways In Achievement Of Improving The Quality Of Life (Tehran’S Greenways As A Case Study), Fatemeh Shahani
Proceedings of the Fábos Conference on Landscape and Greenway Planning
Urban growth and development is caused to increase exploitation of natural resources more than environmental capacity and lead to instability in the cities than ever before. Accordingly sustainable development emphasizes the role of green area and in order to achieve this goal, “greenway” is considered as one of the most important tools for improving urban sustainable development. Moreover, urban green spaces and elements consider as a main factor in the improving of quality of life. Greenways are “green infrastructure” to link people and places (Fabos, 1995) and can be planned at different scales and for multiple purposes, “including ecological, recreational, …
Designing And Building The Wellington Greenway: Project History And Future Plans, Jp Shadley Fasla
Designing And Building The Wellington Greenway: Project History And Future Plans, Jp Shadley Fasla
Proceedings of the Fábos Conference on Landscape and Greenway Planning
The Wellington Greenway is an emerging and nearly-completed 3.5 mile long multi-use trail, which connects beyond its ends to more than 50 miles of other existing and proposed future trails. The Wellington Greenway is an urban greenway; the path traverses six abutting properties located along the Mystic and Malden Rivers in the densely populated cities of Malden and Medford, Massachusetts. Work has been ongoing for over four decades, and while not measured in many miles, much progress has been made. The project is complicated in both technical and political spheres, as the Greenway passes through a mix of public and …
Greenways As An Integrative Framework For Campus Green Infrastructure: A Stormwater Masterplan Vision For The University Of Connecticut, Kristin Schwab
Greenways As An Integrative Framework For Campus Green Infrastructure: A Stormwater Masterplan Vision For The University Of Connecticut, Kristin Schwab
Proceedings of the Fábos Conference on Landscape and Greenway Planning
The increasingly resonant concept of green infrastructure has multiple meanings among different professional sectors and the public. For engineers and others focused on site-scale intervention, green infrastructure is quite specific to the use of low impact development (LID) techniques for stormwater management. To the general public, the concept of green infrastructure may be more simply thought of as environmentally friendly systems of transportation, energy, water, or other communal needs. For land use, urban, and landscape planners, the concept of green infrastructure more broadly represents the idea of open space networks of ecological, social and cultural value – which has its …
Exploring The Significance Of Greenway Concept, To Assist Landscape Planning And Design: Contributions To Theory From African, Asian And European Case Studies, Luís Ribeiro, Teresa Dias, Catarina Viana
Exploring The Significance Of Greenway Concept, To Assist Landscape Planning And Design: Contributions To Theory From African, Asian And European Case Studies, Luís Ribeiro, Teresa Dias, Catarina Viana
Proceedings of the Fábos Conference on Landscape and Greenway Planning
The need for a reliable theoretical framework has been identified as unavoidable means to validate strategies and problem solve solutions in landscape architecture. The identification of the international greenway movement as well as its significance in promoting better planning and design (Fabos, 2010; Fabos and Ryan, 2006) enriched significantly the theory to support greenway planning and design. However, the magnitude achieved by the greenway movement across the world at different scales and contexts, deserves a deeper research on the topic. To illustrate this, it is worth mentioning the increasing popularity of green-infrastructures in European Union both in the academic and …
The Portuguese National Ecological Reserve – A Mapping Tool For Landscape Planning, Selma B. Pena, Manuela R. Magalhães, Manuela M. Abreu
The Portuguese National Ecological Reserve – A Mapping Tool For Landscape Planning, Selma B. Pena, Manuela R. Magalhães, Manuela M. Abreu
Proceedings of the Fábos Conference on Landscape and Greenway Planning
In Portugal, one of the legal frameworks which directly protect the fundamental systems of landscape is the National Ecological Reserve (REN). This instrument was created by the landscape architect Ribeiro Telles in 1983 and at that time its inclusion in the legislative system was considered a pioneering concept in the field of environmental protection. Alongside, it was created the National Agricultural Reserve (1982) that aims agricultural land protection which together with the Natura 2000, other classified areas, and National Ecological Reserve assembles the Fundamental Network of Nature Conservation (2008).
The National Ecological Reserve safeguards fundamental natural cycles and also a …
The Role Of Landscape In Achieving Water Sensitive Cities: The Importance And Potential Of Landscape Architecture In Influencing Change Towards Sustainable Water Use In Australia’S Urban Environments, Josephine Neldner
Proceedings of the Fábos Conference on Landscape and Greenway Planning
This paper discusses research related to generating water sensitive cities in Australia, using Perth, Western Australia, as a site for testing potential applications of landscape architectural design research to do so. The concept of water sensitive cities has newly emerged and its full ramifications have yet to be explored. There is a need particularly to better engage with how cities are designed in order to readdress the relationships to water within them, with a view to realigning them as water sensitive. The research discussed in this paper has been conducted as part of a Doctorate of Philosophy at the University …
Green Infrastructure, Greenways, And Trail Planning: Frameworks For Sustainability In Maryland, David N. Myers
Green Infrastructure, Greenways, And Trail Planning: Frameworks For Sustainability In Maryland, David N. Myers
Proceedings of the Fábos Conference on Landscape and Greenway Planning
The State of Maryland has been a leader in a number of state-wide environmental efforts. As part of the work published by the Maryland Greenway Commission in 2000, a green infrastructure (GI) assessment was included to provide a greater “emphasis on the ecologic network” (Maryland Greenway Commission, 2000, p. 3). This inclusion, while building off of decades of land conservation and greenway planning, recognized the need to provide a more science-based approach to integrated and comprehensive land conservation. In addition to this recognition, this GI assessment was also intended to identify the best ecological lands in Maryland for potential protection …
Finding Our Way: Urban Waterway Restoration And Participatory Processes, Sharon Moran, Meredith Perreault, Richard Smardon
Finding Our Way: Urban Waterway Restoration And Participatory Processes, Sharon Moran, Meredith Perreault, Richard Smardon
Proceedings of the Fábos Conference on Landscape and Greenway Planning
In this paper, we explore some of the challenges encountered in organizing multiple stakeholders for purposes of revitalizing an urban waterway. Drawing primarily from positive experiences with a creek revitalization project in Syracuse, New York, we identify several factors concerning the context and challenges -- both material and social -- that have helped to shape the outcomes. Several of the popular models for engaging stakeholders in waterways projects are discussed, especially as they have been used communities in other parts of the U.S. that have faced related challenges. We seek to identify key points and lessons that can help inform …
Greenways For A Greater Good- An Indian Perspective, Samir Mathur, Sandeep B. Menon, Priyadarshini Kacker
Greenways For A Greater Good- An Indian Perspective, Samir Mathur, Sandeep B. Menon, Priyadarshini Kacker
Proceedings of the Fábos Conference on Landscape and Greenway Planning
Cities have developed on the banks of rivers from the dawn of civilizations. The urban fabric of Indian cities is an intricate tapestry composed of settlements that span almost 4000 years of urban history. Cities as old as 2500 B.C co-exist sometimes in harmony and sometimes in conflict with cities that are still being conceived. The pace of urbanization in India is unprecedented and the country hosts some of the most populous cities in the world. According to the 2011 census, urbanization in India has increased faster than expected reversing the declining trends of the earlier decades. (Census of India, …
Aqueduct Trail Network Development In Metro Boston, David Loutzenheiser, Tom Lindberg, Joel Barrera
Aqueduct Trail Network Development In Metro Boston, David Loutzenheiser, Tom Lindberg, Joel Barrera
Proceedings of the Fábos Conference on Landscape and Greenway Planning
The Massachusetts Water Resources Authority (MWRA) and the Metropolitan Area Planning Council (MAPC) are collaborating with associated cities and towns to open up 40 + miles of existing and former aqueduct right-of-ways are available to be permitted for public access for the first time in the western suburbs of Boston. Four aqueducts are being considered for public access.
The first one-mile section along the Weston Aqueduct in Framingham opened to the public in October 2012. By eventually connecting these aqueducts with existing trail systems, we are ultimately creating a 50+ mile continuous greenway network, primarily using existing public land permitted …
Taking The High Line: Elevated Parks, Evolving Neighborhoods, And The Ever Changing Relationship Between Urban And Nature, Hélène Littke, Ryan Locke, Tigan Haas
Taking The High Line: Elevated Parks, Evolving Neighborhoods, And The Ever Changing Relationship Between Urban And Nature, Hélène Littke, Ryan Locke, Tigan Haas
Proceedings of the Fábos Conference on Landscape and Greenway Planning
“If you were actually able to make a park on the High Line, it would be great for property values. But this will never happen; it is just too far-fetched. These people are dreamers.” (A local property owner at a Community hearing, April 2001 David and Hammond 2011 p. 31)
Everyone talks about it and everyone wants one; The High Line in New York City started a worldwide trend of elevated parks. Old and unused rail lines are transformed into exciting urban environments. New York’s Mayor Bloomberg has noted that the project has ushered in a renaissance for the area …
A Half-Century Of Community Effort To Protect Nantucket’S Specialness, Jim Lentowski
A Half-Century Of Community Effort To Protect Nantucket’S Specialness, Jim Lentowski
Proceedings of the Fábos Conference on Landscape and Greenway Planning
When those who are not especially familiar with Nantucket hear the name some react by calling to mind its connection to the country’s whaling past. But for those who through birth or good fortune have established a personal connection with Nantucket, mentioning the island elicits memories of past travel experiences, friendships made, family milestones shared, or times spent roaming moorlands, cranberry bogs, or miles of sandy beaches, rutted roads, and bike paths.
On Nantucket people are inevitably drawn to the outdoors. They come out to be rejuvenated by the island’s exceptional openness, expansive views of the sky, and rolling landscapes …
Synthesizing An Integrated Green Infrastructure - Establishing A Conceptual Planning Framework In The Western United State’S Urbanizing Communities, Richard Lebrasseur
Synthesizing An Integrated Green Infrastructure - Establishing A Conceptual Planning Framework In The Western United State’S Urbanizing Communities, Richard Lebrasseur
Proceedings of the Fábos Conference on Landscape and Greenway Planning
Planning methodologies in the United States have continually evolved and adapted to address the myriad of environmental and social issues faced by contemporary culture (e.g., Thompson and Steiner, 1997; Calthorpe, 1993), but few have provided the framework to successfully address these subjects simultaneously and comprehensively, and fewer effectively meet the evolving demands society places on human and ecological systems, especially in urbanizing areas, where ecological fragmentation and land use conflict predominates.
Currently, most spatial planning frameworks assess ecological-based and social-based systems as separate entities (Weber et al., 2006; Daniels, 2009), and our understanding of the interrelationships between these systems is …
Tree Alleys – Specific Green Corridors And Their Disappearance From Cultural Landscape Of Nitra Region, Katarína Kristiánová
Tree Alleys – Specific Green Corridors And Their Disappearance From Cultural Landscape Of Nitra Region, Katarína Kristiánová
Proceedings of the Fábos Conference on Landscape and Greenway Planning
Tree alleys, specific forms of green corridors, represent a characteristic phenomenon of historic cultural landscape in Slovakia. The research aims to examine the contemporary patterns of tree alleys appearance in cultural landscape of Nitra region and their potential to serve as green corridors, whether providing ecological functions, recreational functions or cultural heritage and aesthetic values, as defined by conceptual framework of greenways theory.
For purposes of identification of contemporary patterns of tree alleys, current aerial photographs were used. The potential of identified cases to serve for certain functions of green corridors was examined in the place. The comparison of current …
Landscape In The Spatial Planning System Of European Countries, Kisztina Filepné Kovács, Ágnes Sallay, Sándor Jombach, István Valánszki
Landscape In The Spatial Planning System Of European Countries, Kisztina Filepné Kovács, Ágnes Sallay, Sándor Jombach, István Valánszki
Proceedings of the Fábos Conference on Landscape and Greenway Planning
Several researches, projects were launched about the varied spatial planning systems of European countries. For example an extensive comparison analysis was carried out by the guidance of the Directorate-General for Regional policy and Cohesion of the European Commission about the spatial policy of the member states (15 members) in 1997. However researches dealing with the state and scope of landscape planning country by country are quite unique. Conflicts of landscape planning and protection differ just mostly because of the different landscape conditions in Europe, but for the way and method how the issues of landscape planning are integrated in the …
Connecting The “Big Easy”: Lessons From The People Surrounding The Lafitte Greenway In New Orleans, Louisiana, Philip Koske
Connecting The “Big Easy”: Lessons From The People Surrounding The Lafitte Greenway In New Orleans, Louisiana, Philip Koske
Proceedings of the Fábos Conference on Landscape and Greenway Planning
The 3.1-mile (4.99-kilometer) linear Lafitte Greenway, one of the first revitalization projects since Hurricane Katrina (2005), is designed to become a vibrant bicycle and pedestrian transportation corridor linking users to the world-famous French Quarter and central business district. As an emerging city, New Orleans generally developed sections of swamp land starting near the French Quarter and growing outward in most directions. The resulting transect of neighborhoods with access to the Lafitte Greenway begins with areas associated with early development, such as Fauborg Tremé and Bayou St. John, to 20th Century development found within the Navarre and Mid City Neighborhoods. In …
Revisiting Urban Brownfield Regeneration And Beyond Within The Lens Of Green Infrastructure-Based Design And Management, Adnan Kaplan, Koray Velibeyoğlu, Çiğdem Kılıçaslan, Merve Özeren, İrem İnce
Revisiting Urban Brownfield Regeneration And Beyond Within The Lens Of Green Infrastructure-Based Design And Management, Adnan Kaplan, Koray Velibeyoğlu, Çiğdem Kılıçaslan, Merve Özeren, İrem İnce
Proceedings of the Fábos Conference on Landscape and Greenway Planning
The typical showcase of urban transformation practice can be experienced mostly in the core or close proximity of downtowns as either replacing a series of existing vacant or deserted lots along with exacerbated natural system or retrofitting built-up areas and housing affordability. In this way, regardless of their size but their linkage with nearby land uses and down to the urban core, brownfields necessitate urban regeneration practice whereas charging the city with discriminatory land use policies as well as a multitude of social and ecological problems. Urban brownfields consisting of natural assets -including river, wetlands, delta etc.-, post-industrial facilities and …
A Watershed Event: Communicating Landscape Processes, Jeanmarie Hartman, Donna Webb
A Watershed Event: Communicating Landscape Processes, Jeanmarie Hartman, Donna Webb
Proceedings of the Fábos Conference on Landscape and Greenway Planning
A watershed event was created to illustrate and quantify how water from precipitation moves across a land surface. This illustration is one of many that would be useful in developing the environmental literacy of greenway and open space supporters. The physical activity of marking the small sub-watersheds generated discussion and collaboration between volunteers. Stopping to watch the occasion of water shedding created a notable event. The materials assembled for documenting the event have provided materials for website presentation and lectures. The basic process is fairly easy to organize and recommended for use by greenway and open space groups who are …
A Greenway Network Vision For Metro Boston, Peter G. Furth, David Loutzenheiser, Steven Miller, Peyman Noursalehi
A Greenway Network Vision For Metro Boston, Peter G. Furth, David Loutzenheiser, Steven Miller, Peyman Noursalehi
Proceedings of the Fábos Conference on Landscape and Greenway Planning
Urban greenways are attractive for walking and especially for bicycling because they offer a pleasant and near-traffic-free environment in an area with high population density and rich with destinations. Unfortunately, urban greenways are often not connected to one another, requiring cyclists to negotiate heavy traffic getting from one greenway to another and thus diminishing their utility. In the Boston region, a planning and visioning effort is underway to promote the vision of a network of connected greenways offering continuous pleasant, low-stress routes by bicycle or by foot between origins and destinations across the urban area. The network plan emphasizes both …
The Knowledge And Attitude To Species Invasion Issue In Greenway Planning: A Study In China, Fan Fu, Zhao Caijun, Lin Guangsi
The Knowledge And Attitude To Species Invasion Issue In Greenway Planning: A Study In China, Fan Fu, Zhao Caijun, Lin Guangsi
Proceedings of the Fábos Conference on Landscape and Greenway Planning
Greenway is important green infrastructure which has ecological, recreational and cultural/historic functions applied in macro(country), medium(region) and micro(city) levels. Generally, greenway is in linear or reticular forms so that it is called “way”. Greenway has a long history in United States and Europe, and many successful projects have been implemented. Conversely, greenway has a very short history in China, because China lately started it urbanization in 1990s with a low degree of urbanization, which had grown from 26.37% in 1991 to 36.22% to 2000. Thus, for a long time, Chinese landscape architects had focuses on the level of urban area …
New Villages: Planning And Design Of Compact Growth Centers Shaped By Natural, Cultural And Recreational Greenways, Peter Flinker Fasla
New Villages: Planning And Design Of Compact Growth Centers Shaped By Natural, Cultural And Recreational Greenways, Peter Flinker Fasla
Proceedings of the Fábos Conference on Landscape and Greenway Planning
The last several decades have seen the emergence of numerous planning strategies and implementation techniques to preserve open space and promote Smart Growth and Sustainable Development at the local level:
Greenway networks that preserve intact ecosystems.
Green Infrastructure systems that protect floodplains, water supplies and other assets.
Recreational greenways that link key locations with hiking, biking and other trail networks.
Agricultural preserves that protect local food supplies.
Cultural landscape protection that preserves visual and historic character.
Revitalization of Main Streets and suburban commercial strips.
Open Space Subdivisions/ Conservation Development.
Masterplanned Growth Centers …
An Integrated Approach Of Landscape Design In The Rehabilitation Of An Urban River Corridor: River Tinto, Diana Teixeira Fernandes
An Integrated Approach Of Landscape Design In The Rehabilitation Of An Urban River Corridor: River Tinto, Diana Teixeira Fernandes
Proceedings of the Fábos Conference on Landscape and Greenway Planning
Due to the increasing demand for its water resources, the changes in land use and the fast urban sprawl, the river Tinto became the mass of surface water of the river Douro´s watershed with lower physicochemical and biological quality. Taking into account its scale and urban context, the severity of the pollution level and the periodic flooding problem, became urgent to accomplish priority solutions for its riverside landscape, based on natural recovery principles and flood protection.
The purpose of this paper is to stress the contribution of the integrated approach of landscape design in the improvement of the life quality …
The Chinese Characteristics In The Planning And Design Of Guangdong Greenway, He Fang, Suo Xiu, Li Hui
The Chinese Characteristics In The Planning And Design Of Guangdong Greenway, He Fang, Suo Xiu, Li Hui
Proceedings of the Fábos Conference on Landscape and Greenway Planning
As a typical example of greenway networks in China and Asia, Guangdong Greenway Network is of epoch-making and practical significance. The practice of Pearl River Delta Regional Greenway is instructive for other developing countries and densely-populated urban areas to build their greenway networks. The experience of Guangdong Greenway Network gives new Chinese characteristics to the concept and practice of greenway.
China has a profound history of greenways. Even before the Qin Dynasty was established, there already existed a great number of prototypes of greenway. These greenways were born in ancient era where the original productivity remained at a low level …
Legible Greenways: Enhancing The Visual Coherence And Imageability Of The Western Sydney Parklands, Catherine Evans, Linda Corkery
Legible Greenways: Enhancing The Visual Coherence And Imageability Of The Western Sydney Parklands, Catherine Evans, Linda Corkery
Proceedings of the Fábos Conference on Landscape and Greenway Planning
This paper reports on a studio-based project which developed and tested a framework for assessing the legibility of Western Sydney Parklands (WSP) in Australia and preparing proposals to enhance its visual coherence and imageability. Comprising 5280 contiguous hectares (over 13,000 acres) of public land and 27 km (about 17 miles) long, the WSP is a significant recreation resource and an important greenway corridor in the urban ecology of the Sydney basin. Despite its size, the WSP does not register in the mental maps of most Sydney residents, including many who live nearby. This is explained in part by the complex …
Opportunities For Greenways Through Development Of Ecological And Green Corridor Landscape Planning In Hungary, Attila Csemez, Judit Bárcziné Kapovits
Opportunities For Greenways Through Development Of Ecological And Green Corridor Landscape Planning In Hungary, Attila Csemez, Judit Bárcziné Kapovits
Proceedings of the Fábos Conference on Landscape and Greenway Planning
In the specialist literature on landscape design, greenways are multi-functional routes which optimally have both recreational and ecological functions. The recreational function of greenways is primarily use by pedestrians, cyclists and horse-riders. The ecological role of greenways means that optimally they are part of a given landscape’s ecological system. In the course of our research – taking into account the natural, social and economic conditions, as well as landscape and design precedents – we are seeking answers to questions within the following categories: (1) justifications for the creation of greenways in Hungary; (2) the geographical areas in which greenways may …
Perceptions And Implementations Of Urban Green Infrastructures In France: Three Cases Of Studies (Paris, Marseille, Strasbourg), Laure Cormier, Etienne Grésillon, Sandrine Glatron, Nathalie Blanc
Perceptions And Implementations Of Urban Green Infrastructures In France: Three Cases Of Studies (Paris, Marseille, Strasbourg), Laure Cormier, Etienne Grésillon, Sandrine Glatron, Nathalie Blanc
Proceedings of the Fábos Conference on Landscape and Greenway Planning
Green infrastructures have gradually become imperative in planning since the end of 1990s in Europe (Jongman et al, 2004). Numerous urban areas in France mobilize and reinterpret the notion according to stakes of their territory (Blanc, 2012). With the promulgation of Grenelle 1 and 2 Laws (in 2009 and 2010), today every local authorities have to integrate an ecological reflection on green infrastructures into its planning projects at metropolitan and local scales, called “trame verte”. To cover a plurality of contexts of cultural, social, geographical and ecosystematic levels, three cities were retained to understand how this reflection is set up: …