Background: Environmental improvement is a priority for urban sustainability and health and achieving it requires transformative change in cities. An approach to achieving such change is to bring together researchers, decision-makers, and public groups in the creation of research and use of scientific evidence. Methods: This article describes the development of a programme theory for Complex Urban Systems for Sustainability and Health (CUSSH), a four-year Wellcome-funded research collaboration which aims to improve capacity to guide transformational health and environmental changes in cities. Results: Drawing on ideas about complex systems, programme evaluation, and transdisciplinary learning, we describe how the programme is understood to “work” in terms of its anticipated processes and resulting changes. The programme theory describes a chain of outputs that ultimately leads to improvement in city sustainability and health (described in an ‘action model’), and the kinds of changes that we expect CUSSH should lead to in people, processes, policies, practices, and research (described in a ‘change model’). Conclusions: Our paper adds to a growing body of research on the process of developing a comprehensive understanding of a transdisciplinary, multiagency, multi-context programme. The programme theory was developed collaboratively over two years. It involved a participatory process to ensure that a broad range of perspectives were included, to contribute to shared understanding across a multidisciplinary team. Examining our approach allowed an appreciation of the benefits and challenges of developing a programme theory for a complex, transdisciplinary research collaboration. Benefits included the development of teamworking and shared understanding and the use of programme theory in guiding evaluation. Challenges included changing membership within a large group, reaching agreement on what the theory would be ‘about’, and the inherent unpredictability of complex initiatives.

Background: Environmental improvement is a priority for urban sustainability and health and achieving it requires transformative change in cities. An approach to achieving such change is to bring together researchers, decision-makers, and public groups in the creation of research and use of scientific evidence. Methods: This article describes the development of a programme theory for Complex Urban Systems for Sustainability and Health (CUSSH), a four-year Wellcome-funded research collaboration which aims to improve capacity to guide transformational health and environmental changes in cities. Results: Drawing on ideas about complex systems, programme evaluation, and transdisciplinary learning, we describe how the programme is understood to “work” in terms of its anticipated processes and resulting changes. The programme theory describes a chain of outputs that ultimately leads to improvement in city sustainability and health (described in an ‘action model’), and the kinds of changes that we expect CUSSH should lead to in people, processes, policies, practices, and research (described in a ‘change model’). Conclusions: Our paper adds to a growing body of research on the process of developing a comprehensive understanding of a transdisciplinary, multiagency, multi-context programme. The programme theory was developed collaboratively over two years. It involved a participatory process to ensure that a broad range of perspectives were included, to contribute to shared understanding across a multidisciplinary team. Examining our approach allowed an appreciation of the benefits and challenges of developing a programme theory for a complex, transdisciplinary research collaboration. Benefits included the development of teamworking and shared understanding and the use of programme theory in guiding evaluation. Challenges included changing membership within a large group, reaching agreement on what the theory would be ‘about’, and the inherent unpredictability of complex initiatives.

Contemporary challenges linked to public health and climate change demand more effective decision-making and urban planning practices, in particular by taking greater account of evidence. In order to do this, trust-building relationships between scientists and urban practitioners through collaborative research programmes is required. Based on a policy-relevant research project, Complex Urban Systems for Sustainability and Health (CUSSH), this project aims to support the transformation of cities to meet environmental imperatives and to improve health with a quantitative health impact assessment. A case study in Rennes, France, focuses on the role of a policy decision-support tool in the production and use of knowledge to support evidence-informed decision-making. Although the primary objective of informing decision-making through evidence-based science is not fulfilled, the use of a decision-making support tool can lay the foundations for relationship-building. It can serve as a support for boundary-spanning activities, which are recognised for their effectiveness in linking science to action. This case study illustrates that the path of knowledge transfer from science to policy can be challenging, and the usefulness of using models may not be where it was thought to have been. PRACTICE RELEVANCEThe requirements for an effective policy-relevant research programme depend on the establishment of trust. An analysis of the evolution of relationships between cities' practitioners and scientists shows the need to establish relationships between CLÉMENT DELOLY ANNE ROUÉ-

Background Despite a well knowledge about links between urban planning and health, practices’ analyze highlights the difficulty to upgrade health into urban planning decisions. To overcome this issue, the EHESP has initiated a specific research dedicated to the development of tools for a better integration of health & wellbeing at different decision-making-level (urban planning & urban development project). The objective of this presentation is to focus on one dedicated research, Isadora project, and to share how the project was carried out to enable the production of an operational tool dedicated to urban planners to better integrate health issues into their practices. Methods The scientific management team mixed various skills from public health, environment and urban planning sectors which makes easier the implementation of two key-principles of research: (i) to adopt a systemic approach to health determinants, (ii) to address urban settings through an integrated approach to public health, environment and sustainable development issues. The implementation of this interdisciplinary and intersectorial project is based on a close collaboration with a national working group composed of various professionals and academics (urban planning, environment, and health). The Isadora project deliverables results from an iterative process between all the stakeholders involved in the project. Results and conclusions First, we will present how we facilitated the working group throughout the deliverables development process and how we overcame the challenges of implementing intersectorality. Then, we will present the operational tool structured around of 15 key sheets with health focus to help professionals to integrate health at each step of an urban development project. Key messages ISadOrA project aspires to promote an evolution of urban planner’s practices in order to achieve a healthy urban development project. This ambition requires the translation of concepts into actions.

IntroductionScientists from a wide variety of fields of knowledge are increasingly interested in climate change issues. The importance given to the phenomenon is explained by the uncertainties surrounding it and its consequences not yet fully known. However, there is wide agreement that human activities are modifying the Earth’s climate beyond the natural cyclical changes and that these changes impact human health. This scoping review aimed to understand how research on the links between climate change and human health in urban areas is conducted and how this research is approached holistically or not.Methods and analysisThis scoping review is mainly guided by the Arskey and O’Malley scoping review framework. A broad range of databases will be used, including PubMed, ScienceDirect, Web of Science Core Collection, GreenFILE and Information Science & Technology Abstracts. Predefined inclusion and exclusion criteria will be used, with a focus on climate change and human health outcome studies published between January 1990 and July 2019. An interdisciplinary team has formulated search strategies and the reviewers will independently screen eligible studies for final study selection. We will apply a thematic analysis to evaluate and categorise the study findings. We expect to map the research according to the scientific research methods, the scientific fields and the determinants of health studied. Along these lines, we will be able to understand how holistic the research is.Ethics and disseminationNo primary data will be collected since all data presented in this review are based on published articles and publicly available documents. Therefore, ethics committee approval is not a requirement. The findings will be disseminated through publication in a peer-reviewed journal, presentations at conferences relevant to the field of this research, as well as presentations to relevant stakeholders.