TESTING-GROUND is a design research journal focused on research, experimentation and design of landscapes, cities and territories. It provides a platform to critique established urban theories and a place to investigate emerging architectural, political and ecological concepts. The focus of each issue emerges from collaborative workshops which explore specific ideas and concerns. This first issue focuses on trajectories of change. TESTING-GROUND is published by the Advanced Landscape and Urbanism research group in the Department of Architecture and Landscape at the University of Greenwich, London. The Advanced Landscape and Urbanism research group is a platform for design and research of cities and landscape. The group encourages new approaches to research and design experimentation, which investigate the everyday and the extraordinary spaces, environments and lives of our cities.