Androniki Pappa

Background Over the last decades, international and national environmental policies have been designed and implemented to counteract the impact of the emerging climate change, this forcing many cities around the globe to adapt their urban environment and update their planning strategies. On a local level, targeted solutions to improve urban microclimates play a catalytic role on the sense of urban comfort, especially in densely built areas lacking green. Such nature-based and cost-effective solutions which provide environmental, social and economic benefits for resilience (European Commision Research and Innovation, n.d.), as well as comprehensive green and blue infrastructure strategies that promote the use of natural processes and vegetation to achieve landscape and water management benefits in an urban context (Victoria State Goverment Department of Environment Land Water and Planning, 2017)  can counteract the effects of rising temperatures and provide resilience for cities and inhabitants (Roehr & Laurenz, 2008). However, their implementation and maintenance face many challenges, such as administrative limitations and lack of awareness or acceptance by the local stakeholders and residents (Hagen et al., 2021; Tötzer et al., 2019). Working to address this challenge in a holistic manner, the LiLa4Green project, as part of the Smart Cities Initiative, aims to foster the implementation of nature-based solutions in the city of Vienna, by integrating a LL approach that focuses on social innovation and knowledge-sharing. The main goals of the project include the collaborative identification of challenges and potentials, the implementation of co-created solutions in the streetscape and the visualisation of the effects of potential solutions in a creative way to raise awareness and activate participants (Hagen et al., 2021). The project is funded by the Climate and Energy Fund and is carried out by an interdisciplinary consortium consisting of research, academic and community partners. The project’s methodology has been tested in two residential neighbourhoods, ‘Quellenstraße Ost’ in the 10th district and ‘Kreta’ in the 14th district of Vienna. Both neighbourhoods are characterised by dense urban structures and insufficient public and green spaces, and their population consists predominantly of young, low-income immigrant groups who are poorly qualified and which suffer a high unemployment rate (Hagen et al., 2019).   Methodological Approach The project was implemented along two parallel lines of work. The first refers to a scientific approach conducted by the research consortium. This initiated with the open space and microclimatic analysis of the areas, the results of which were seen in context with the climate of the whole city, concluding to the areas’ characterisation. A demarcation as ‘vulnerable with respect to densification’ (Tötzer et al., 2019, p. 3) reflects the high density and bioclimatic stress of the neighbourhood. The analysis offered valuable insights in identifying priority spots, i.e., small-scale heat islands, and was followed by discussions on greening potentials and recommendations about the areas’ needs and characteristics. In parallel, a participatory process was initiated in the focus areas to inform the scientific findings on the most problematic locations in the neighbourhood based on the local knowledge and experience of residents and local stakeholders. At the same time, through the establishment of the LL as an alternative to top-down city planning strategies, residents moved from being information facilitators to co-creators. Following this approach of empowering residents to actively participate in the development of solutions that affect their living environment, the LL investigated ways to raise public awareness on mitigation and measures to facilitate citizens’ adaptation to climate change and to ensure a broad acceptance for the green-blue infrastructure among the general public, through the design and testing of multiple and diverse smart user participation and visualisation methods. A combination of innovative social science methods with the latest digital technology was put forward to facilitate the dissemination of information of the diverse functionalities of green and free spaces, testing also new methods of visualisation of the effects, such as Augmented and Virtual Reality, for more informed decisions (www.lila4green.at). Focusing further on the visibility and traceability (Hagen et al., 2021, p. 393) of the added value of the potential interventions, the monitoring phase included a combination of measurements, simulations and surveys, while in the assessment phase, innovative tools such as crowdsourcing and maps were employed to correlate multiple measurements such as costs and maintenance requirements.   Activities The innovative methodology was tested in practice in a range of different activities organised by the LL that opened the research to citizens and stakeholders in an interactive format. The participatory process initiated with the LiLa4Green research team coming together to design the operation and context of the LL. The activities in the LL began with the ‘Start Workshop’, a knowledge-gathering meeting in which research team members and relevant stakeholders (representatives of municipal agencies and local institutions) came together to discuss constrains, potentials in the project area and the mutual benefits. This introductory event was followed by the four cornerstones of the project, namely the ‘Green Workshops’ (GWs) that took place every 6 months and involved the research team, stakeholders and citizens. In preparation of each of these four events, a set of activities was organised on site, related to the objectives of the foregoing events, as well as the results of the previous ones. For instance, before the first Green Workshop that focused on ‘sharing information, building mutual understanding and establishing social connections’ (Tötzer et al., 2019, p. 5), the research team conducted on site activation activities which included the creation of a temporary space for conversations using pictures, signs and questions to approach the people passing by, and also engaging them through game-like activities of mapping and voting. The first workshop started and concluded with a survey. The comparison of the answers of both surveys enabled the organisers to detect changes in the perception of participants on the topic and hence the success of the workshop in the transfer of knowledge. The workshop was organised in two parts that differentiated on the flow of knowledge from the research group to the participants and reversely, using posters, a memory set and a flyer as tools for communication. Working on the feedback from the first workshop, the second event focused on the realisation of the first urban intervention, a parklet, that was developed as a student project at intended design studios at the TU Wien and then selected by the participants of the LL. Furthermore, using a smart interaction tool with AR technology on site, participants were given the chance to visualise and provide their feedback on potential greening interventions. Having built trust between the participants and the research team, the third workshop aimed at the identification of the potential uses of the open space through gamification. The participants designed adaptation activities to respond to the scientifically identified conditions and further grounded their decisions to real restrictions, such as budget. In the same workshop, participants tested the AR tool that was further developed by the research team according to the feedback from the second workshop. Finally, the fourth workshop dealt with the collective implementation of the developed proposals. Due to the pandemic outbreak the workshop was delivered in a digital format and the results were eventually implemented in the summer 2020.   Communication and Sharing Experience Parallel to the workshops and activities, the consortium gave a great value to the communication and dissemination of LiLa4Green within and outside the focus areas by sending out a frequent newsletter and an Explain Video to attract and maintain participants’ motivation. Surveys and questionnaires were used to incorporate the feedback for the next stages, and experiences were shared via a website. Furthermore, the team created a brochure with the title “In 5 Schritten zum guten Klima”  (LiLa4Green, n.d.) to summarise the smart participation methodology in five steps: 1. Prepare the ground and initiate the process, 2. Share knowledge and learn together, 3. Decide and create trust, 4. Designing the future in a playful way, and 5. Specify and implement together. Lastly, aiming to disseminate the knowledge and experiences with the scientific community, the research team actively participated in conferences, presentations, lectures and journals.   Acknowledgment I would like to thank Tanja Tötzer, expert advisor at the Austrian Institute of Technology in Vienna and coordinator of the LiLa4Green project, for the inspiring discussion and generous insights that have helped to write about LiLa4Green.