1. General information
Location and description of the intervention
City or FUA
Marseille (FUA)
Region
Europe
Native title of the NBS intervention
La Ruée verte
Short description of the intervention
The project La Ruée Verte aims to create a green corridor connecting two emblematic locations for social and environmental justice: La Base Marseille and L’Après M. The route spans over 7 km and passes through La Friche de La Belle de Mai and aims to bring more nature into the city on a larger scale in a fair and equitable way (Ref 2).
Given the challenges of climate change—rising temperatures, urban heat islands, fewer trees in Marseille, and increasing urbanization—the green corridor will offer a solution to combat the suffocating effects of the city’s concrete sprawl (Ref 2). Additionally, it aims to reduce pollution peaks and improve air quality (Ref 2), increase biodiversity (Ref 2), and provide access to green spaces and places for social interaction (Ref 2).
The project also addresses the broader social crisis, with rising costs of food, housing, and transportation (Ref 2). Local solidarity is key, ensuring that all green initiatives foster community interaction and consider the urgent needs of residents, such as precarious living conditions and isolation (Ref 2). Collective participation is central to the project, ensuring that it is designed by and for residents of different neighborhoods, reflecting their realities. The project, called “La Ruée Verte,” aims to unite various citizen groups, social centers, and associations to amplify their voices (Ref 2).
The project's first phase, “La Petite Ruée,” will launch in October 2024, following a year of preparation. It will start with neighbourhood micro-projects and shared advocacy, including events and gatherings (Ref 2). The goal is to collectively think about social and climate justice and begin taking concrete actions towards popular ecology in each neighbourhood (Ref 2).
Implementation area characterization
Timeline of intervention
Start date of the intervention (planning process)
2023
Start date of intervention (implementation process)
2024
End date of the intervention
ongoing
Present stage of the intervention
Objectives of the intervention
Goals of the intervention
1. Create a green corridor connecting two key locations that advocate for social and environmental justice (Ref 1).
2. Bring more nature into the city (Ref 2).
3. Adapt to climate change impacts such as rising temperatures and urban heat islands by increasing green spaces (Ref 2).
4. Improve air quality (Ref 2).
5. Foster social connections and create inclusive spaces that link neighbourhoods and break down social barriers (Ref 2).
6. Ensure community involvement in the project’s design and implementation, reflecting local realities and needs (Ref 2).
7. Promote local solidarity by addressing issues like precarious living conditions, isolation, and housing insecurity (Ref 2).
8. Create space for restoring biodiversity (Ref 2)
Climate change adaptation: What activities are implemented to realize the conservation goals and targets?
Implementation activities and NBS focus
Implementation activities
1. Creating a 7 km green corridor that connects La Base Marseille, L’Après M, and La Friche de La Belle de Mai (Ref 1).
2. Designing the corridor through a participatory process involving local citizens and stakeholders (Ref 2).
4. Launching “La Petite Ruée” (phase I of the project) in October 2024:
- starting with neighbourhood micro-projects (Ref 2)
- Organizing events and meetings (Ref 2) like citizen agoras, seasonal festivals, greening initiatives, artistic experiments with plants, waste collection in collaboration with other organizations, gatherings, conferences, debates, and plant, seed, and plantlet exchanges (Ref 1).
- create a shared advocacy for social and environmental justice (Ref 2)
- creation of a website that brings together information, tools, photos and videos for sharing what is done and collecting opinions (Ref 2)
- In June 2024, hosting a guided tour to present a project (Ref 4).
NBS domain and interventions
Ecological domain(s) where the NBS intervention(s) is/are implemented
Grey infrastructure featuring greens
Alley or street trees and other street vegetation
Parks and urban forests
Green corridors and green belts
Amenities offered by the NBS
Services
Expected ecosystem services delivered
Regulating services
Local climate regulation (temperature reduction)
Air quality regulation
Habitat and supporting services
Habitats for species
Cultural services
Aesthetic appreciation
Recreation
Mental and physical health and wellbeing
Social and community interactions
Scale
Spatial scale
Micro-scale: District/neighbourhood level
Beneficiaries
Demographics in implementation area
Demographics in Marseille 14th district in 2021 (Ref 5) :
- population : 59 948
- median income: 15 420 euros
- poverty rate : 42%

Demographics in Marseille 3rd district in 2021 (Ref 6) :
- population : 53 115
- median income: 13 530 euros
- poverty rate: 52%

Demographics in Marseille 4th district in 2021 (Ref 7) :
- population : 50 068
- median income: 20 220 euros
- poverty rate: 24%

- ethnicity: the statistics national institute (INSEE) in France does not produce ethnic statistics, as collecting data on race or ethnicity is prohibited by French law under the Loi informatique et libertés of 1978.
Socio-economic profile of the area
Communities vulnerable to environmental hazards or climate change impacts
Yes
Specification of climate or environmentally vulnerable communities
Non-government actors
Non-governmental organisation (NGO) / Civil society / Churches
Citizens or community groups
Specify primary beneficiaries
- the residents: "residents of the various neighbourhoods" (Ref 2)
- the vulnerable residents: "the precariousness, poor housing, isolation..." (Ref 2)
- local NGOs: "La Ruée Verte should be a project that brings together a wide range of citizens (residents' groups, social centers, associations, etc.)." (Ref 2)
Measures for inclusion of marginalised groups
Mutual assistance is a key principle of the project: "All green initiatives should be designed to encourage encounters between residents and take into account the urgent needs of each individual (precariousness, poor housing, isolation, etc.)." (Ref 2)
Governance
Governance arrangements
Please specify the roles of the specific government and non-government actor groups involved in the initiative
- Marseille en Transition (NGO): lead the project (Ref 1), in collaboration with:
- groups of residents
- Alternatiba Marseille (NGO)
- La Base Marseille (NGO)
- L'après M (NGO)
- other ecological and social stakeholders (Ref 2)
Key actors - initiating organization
Key actors - Other stakeholders involved (besides initiating actors)
Local government/municipality
Non-government organisation/civil society
District/neighbourhood association
Citizens or community group
Level of citizen and community engagement
Policy drivers
NBS intervention implemented in response to a Regional Directive/Strategy
No
NBS intervention implemented in response to a national regulations/strategy/plan
No
NBS intervention implemented in response to a local regulation/strategy/plan
Unknown
Mandatory or voluntary intervention
Voluntary (spontaneous)
Enablers & Barriers
Please provide details (e.g, name of the plan or strategy) for the selected policies or initiatives.
The project is based on collective participation and cooperation principles, aiming self-organization of neighborhood citizens (Ref 2)
Barriers
unknown
Financing
Total cost
Please specify total cost (EUR)
unknown
What is/was the Cost/Budget (EUR) of the NBS or green infrastructure elements?
unknown
Source(s) of funding
Type of fund(s) used
Non-financial contribution
Yes
Who provided the non-financial contribution?
Type of non-financial contribution
Co-finance for NBS
Unknown
Entrepreneurship opportunities
Unknown
Business models
Impacts, benefits
Description of environmental benefits
-Lowered local temperature: "fighting increased temperatures" and "urban heat islands" (Ref 2)
-Improved air quality: "fighting air pollution" and "pollution peaks" (Ref 2)
-Improved soil quality: "fighting [...] the concretization of our city" and "the hot soils (80° ground temperature in Noailles in summer (2017))" (Ref 2)
-Increased green space area: creation of " 7 km of green trail" (Ref 1)"We imagine a greenway, with more nature, green spaces..."(Ref 2)
-Reduced biodiversity loss: enhance "more biodiversity", creation of "green spaces, sources of biodiversity" (Ref 2)
-Increased number of species present: "planting plants" over " 7 km of green trail" (Ref 1)
Environmental impact indicators
Total number of vascular plant species protected or introduced
unknown
Green space area created (in ha)
unknown
Total area of habitat restored (in ha)
unknown
Reduction in air pollution levels (e.g., particulate matter, nitrogen dioxide) (µg/m³)
unknown
Air cooling (°C)
unknown
Description of economic benefits
- Increase of green jobs (e.g. paid employment positions): "We imagine a green way, with more nature, green spaces, sources of biodiversity, freshness, but also jobs." (Ref 2)
Economic impact indicators
Number of jobs created (e.g. park maintenance, landscaping, ecotourism)
unknown
Social and cultural impact indicators
Surface area of accessible green spaces (in ha)
unknown
Number of participants in outdoor activities or exercise programs in green spaces
unknown
Number of community events, gatherings, or volunteer activities organized in green spaces
unknown
Number of people and/or communities whose climate vulnerability is reduced
unknown
Description of social and cultural benefits
-Improved social cohesion & Increased opportunities for social interaction: "Places to meet, relax, connect neighborhoods and break down barriers." (Ref 2)
-Improved access to urban green space: "we imagine a green way, with more nature, green spaces, sources of biodiversity, freshness" (Ref 2)
-Increased involvement of locals in the management of green spaces: "You can take part in the project as a group, association or volunteer by: set up a [greening] micro-project on the route, in your neighborhood!" (Ref 2)
-Improved physical health: "fighting air pollution", "Pollution peaks: 2,500 pollution-related deaths per year in Marseille" (Ref 2)
-Reduced risk of heatstroke and/or dehydration: "fighting increased temperatures" and "urban heat islands" (Ref 2)
-Enhanced cognitive restoration, relaxation and stress relief: "Places to meet, relax" (Ref 2)
-Increased awareness of NBS and their benefits: "A website that brings together information, tools, photos and videos to show what we do" (Ref 2)
Mental health benefits
Evidence for use of assessment
Presence of an assessment, evaluation and/or monitoring process
Unknown
Presence of indicators used in reporting
No evidence in public records
Presence of monitoring/evaluation reports
No evidence in public records
Availability of a web-based monitoring tool
No evidence in public records
Name of any specific impact assessment tools
unknown
Use of GIS in mapping impacts
No evidence in public records
Cost-benefit analysis
Unknown
Justice
Community satisfaction
Description of locals satisfaction with the project
unknown
Trade-offs & Negative impacts
Measures to prevent gentrification or displacement
High-quality & Transformative NBS
Multiple impacts delivery (climate, biodiversity, just community)
Yes
Goal setting and impacts delivery
No, although benefits were delivered in all the 3 key areas, but in the planning phase, the project did not aim to address issues in all the 3 key priority areas.
Long-term perspective
Yes
Cost-effective solutions
Unknown
Equitable impacts
Application of lessons learned
Perception of Environmental Change
Yes
NBS Supports ecological or environmental anxiety
Unknown
References
1.
Marseille en transition (n.d.). Marseille en transition. Marseille: Marseille en transition, p. 1-4 Accessed on September 10, 2024, [Source link] [Archive];
2.
Marseille en transition (n.d.). La Ruée Verte, c’est quoi ?. Marseille: Marseille en transition, p. 1-8 Accessed on September 10, 2024, [Source link] [Archive];
3.
Sans transition (2024). [MARSEILLE EN TRANSITION] La Ruée Verte - en avant pour la phase mobilisation !. Marseille: Sans transition, p. 1-2 Accessed on September 10, 2024, [Source link] [Archive];
4.
Sans transition (2024). Balade sur la ruée verte. Marseille: Sans transition, p. 1 Accessed on September 10, 2024, [Download];
5.
INSEE (2021). Comparateur de territoires- Commune de Marseille 14e Arrondissement (13214). Marseille: INSEE, Accessed on September 10, 2024, [Source link] [Archive];
6.
INSEE (2021). Comparateur de territoires- Commune de Marseille 3e Arrondissement (13204). Marseille: INSEE, Accessed on September 10, 2024, [Source link] [Archive];
7.
INSEE (2021). Comparateur de territoires- Commune de Marseille 4e Arrondissement (13204). Marseille: INSEE, Accessed on September 10, 2024, [Source link] [Archive];
Comments and notes
Public Images
Image
Map of the Ruée Verte project - a green corridor in Marseille
Map of the Ruée Verte project
https://marseilleentransition.fr/la-ruee-verte/ accessed on 10/09/2024