The cutting edge in architecture and community design: For this hour of Radio Times, we invite three designers into the studio to discuss how they are incorporating new ideas and visions into civic and private spaces, including here in Philadelphia. TEDDY CRUZ is a Guatemala-born, San Diego-based designer and urban theorist who found inspiration for his work in an unlikely place: the bustling slums just across the border in Tijuana. Cruz is also working on a grant-funded MixPlace Studio in the Mantua neighborhood of West Philadelphia, a youth mentorship initiative that includes design-related research and exhibitions for jumpstarting community discussion. He’s also giving the keynote address tonight at the Design in Action 2011 conference underway across town. Co-hosting that conference is the Community Design Collaborative, which is celebrating its 20th anniversary with a new book, Leverage: Strengthening Neighborhoods Through Design, and also joining us are Executive Director BETH MILLER and co-chair MAMI HARA, a designer and planner with Wallace Roberts & Todd who has played a lead role in many environmentally conscious major projects in Philadelphia.